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Xero Bewertungen
von Xero4.3 / 5 1.828 Bewertungen
Bewertet am 3.11.2019
Absolutely love Xero
Adam H.
Kommentare: Xero has allowed us to get a real, detailed view on the financial situation within our company from one place. With a comprehensive setup, it can provide real value from day one.
Vorteile: Xero has transformed our financial management and provides us with all the real time data we could imagine, and where it lacks, integrations take over. While more "accountancy" friendly than some of the more simple products, once you work with your accountants to get this right, you won't regret it. The detail, features and holistic approach to managing company finances means that we are using this every day and with pleasure.
Nachteile: The interface is being updated, and it is needed as it is a little old fashioned in its design. That said, it is clean and clear and otherwise we love everything about Xero.
Bewertet am 15.9.2019
Super Simple Accounting Software for Small to Medium Sized Businesses
Paul C.
Kommentare: As a small business our main priority is to keep our monthly book keeping tasks simple and quick. Since moving to Xero from MYOB we have found a significant reduction in our book keeping time input. We are NOT accountants or book keeping experts and Xero as an accounting system has definitely made this part of our business much more efficient. We are guided by our accountant as how best to use the software and have been able to develop a simple client - accountant relationship with Xero being the main conduit of information between us.
Vorteile: As a small business we found Xero to be a simple and very cost effective solution for all our accounting - book keeping needs. Xero is very easy to set up with your accountant and reduces the time you need to spend on book keeping tasks each month. With automatic bank feeds the time we need to reconcile our accounts each month is minimal. The audit trail features mean any issues that arise can be quickly found and fixed. Being able to notate any transactions enables our accountant to quickly respond to our queries. As a small business keeping our external accountant costs down is very important to us and by using Xero means the time our accountant has to actually spend on our accounts is less and therefore so are the invoices we receive from him!
Nachteile: Some of the automatic accounts Xero suggests you reconcile to are not correct so it is important to double check each transaction before reconciling. We had issues setting up some of the automatic bank feeds and still have one bank account that will not process the feeds so we need to enter those transactions manually. When uploading a file of transactions we also had some issues and found it quicker just to manually enter them into the software.
Bewertet am 26.8.2019
Affordable professional level accounting software for small business
Kathryn H.
Kommentare: It's been easier to use Xero than I expected, but I had a nasty surprise at tax time when I realized the default accounts/descriptions for expenses did not correlate 1:1 to IRS categories. (I should have checked this more closely when I set up my accounts because it's a New Zealand company, and the previous product was local.) This means I will need to double-check all my transactions for 2018 and the IRS has my vastly overestimated tax payment until I can do that and file my return on an extension. I've had a much better experience importing data from financial institutions because Xero uses a well-known importing service that is trusted by the institutions. I like being able to match multiple invoices to bank deposits because I usually don't run to the bank for each check. This will be more valuable as my company grows. I should probably find an accountant to assist me with this, but I haven't found an accountant who understands both craft businesses and Xero.
Professional double entry software at a very affordable price
Accommodates both cash and accrual accounting
Links to financial institutions to get transactions
Uses standard importer recognized by the financial institutions instead of just trying to log in remotely (and triggering fraud alerts)
Can match multiple invoices to a single deposit transaction imported from bank
Can keep using Xero as company grows
Pre-existing expense categories/descriptions don't map 1:1 with IRS definitions, so I'm having to go back to all my receipts to make sure expenses are entered in proper accounts because I didn't realize this when I switched
More difficult to focus on specific expense categories to check transactions
Have not been able to import historic data from previous app (possibly because it's not double entry) so I am still paying the subscription on that software to retain access to my data
No integration with Craftybase, so I have to enter supply purchases and customer invoices there independently
Bewertet am 4.3.2019
Xero makes reconciling fun
Anna L.
I use Xero in two roles in my life, one as an employee and the other for the accounting software for my husband's business.
In my work New Zealand schools use this software as it is relatively easy to learn, quite intuitive and uses cloud accounting, enables document uploads for accountants to view etc. Once well set up it is also fast to use on a day to day basis.
At home I assist my husband to reconcile our business transactions for our accountant. We don't have to go in to the accountant's office or email invoices etc as we can upload them to Xero for him to see. You can set up the dashboard to get an overall view of your business and how much money is owed to you, and bills you owe, how you are tracking month to month, and the balances of your accounts you have linked to Xero.
I like the ease of reconciling because once you get set up and code a few items it remembers them for next time for a faster job (you still have to check them to see if they are correct first).
I find it fun and satisfying to reconcile in Xero as it is quite visual, you see several lines waiting to be reconciled and then as you work through the transactions, coding them and clicking on the middle button, they disappear. Setting up bank rules is also a huge benefit, as they get coded automatically, ready for you to just hit the green 'ok' button. You can use this for your usual bills for example, electricity bill, local cafe, cell phone bill, internet charges. Although it does take time to set bank rules up to make sure all details are accurate, it saves time in the long run.
I like the fact that customers can upload documents into the files section of Xero and their accountant can see these documents immediately to work on them or code them.
I also like the search function as you can search for a particular number, or the first few letters of a name or business to find relevant transactions.
Being able to generate invoices and email them direct from Xero is great as it saves time.
It is not the software's fault exactly, but because reconciling is so easy there is a temptation to accept what Xero suggests for a transaction and reconcile to this account, instead of pausing and really checking if the code is the best one.
Xero is first and foremost a business accounting software, so the reports it can generate may not be exactly what other users of the software need, like schools for example, who may need a Xero add-on to get what they most need in regards to reports.
Bewertet am 15.8.2018
Xero truly puts powerful data in the hands of small business owners
Verifizierter Rezensent
Vorteile: I have been using Xero for a good number of years now and can only recommend it! The usability is fantastic, the ability to see really clearly how the accounts work is groundbreaking in its field. I love the bank reconciliation and the bank feeds. The automation of data is actually fun and linking it into the add-ons can make life a lot easier and save time and money. It is a great way to keep things simple and clear. I love the advisor features, that you can't break it (although you can make a real mess if not careful). For me the biggest benefit is the clarity of the data and the ability to drill down into virtually anything. Don't use Xero in super complex scenarios and I would recommend that you employ a proper XERO accountant - who actually knows how to use Xero and uses the data when using it though or you will end up paying twice - once for entering the data to xero - and again when the accountant pulls it out into their own software. Overall I would absolutely recommend Xero for people who are more serious than working in spreadsheets but who are turning over £50k-£3m+ with a fairly simple process.
We have found that Xero does not work well in all scenarios but there are work arounds - the bigger the business and the more complex the processes the less it suits but then if you are bigger/more complex you should arguably be using something else!
Support is not awesome! It can take time and you are often met with unhelpful suggestions. There has been an increased number of 'blips' in the software in more recent months and the support has been almost useless in those cases and I have had to find workarounds. Conversation/instant message support should surely be on the cards?
Another thing that I don't like is the highly evangelical nature of the conferences! It borders on the cultish and if you are not 'in' then you are definitely 'out'! I have not found there to be any benefit to being on the 'directory' for that same reason.
Bewertet am 4.4.2018
Great, intuitive and easy to use bookkeeping software, lacking for accountants, NO customer services
Verifizierter Rezensent
Kommentare: It is so easy to use but support has to come from Accountants who are not customer service or techies and who are not adequately compensated for their efforts. It is enjoyable to use and definitely does the basics very well.
Vorteile: For bookkeeping, small and medium-sized businesses this software is a dream. It is the most intuitive and easiest to use of all the accounting software that we reviewed. As an accountant, it is easy to fix user errors and mis-postings. There is a proper audit trail and safety checks built in. There are so many time-saving features like find and recode, repeating bills/invoices/journals, bank rules. The move toward AI is exciting too.
Nachteile: The reports aren't GAP or IAS compliant so it is no good for reporting, final accounts production or tax. To get accountants interested and recommending Xero in the early days, they promised accountants that Final Accounts Production and Corporation Tax software was in their development queue but it never materialised and they burnt a lot of bridges with accountants when they announced that they had dropped FAP plans. This is why Quickbooks are getting such a big foothold and stealing market share from Xero. The software is expensive for what it is and you can get a lot more and better for your money with FreeAgent and QuickBooks. The biggest let down for Xero is that there is no telephone support, at all. Not even call back. You have to email and if you are on the opposite side of the world from New Zealand, it can take a full day to get an inital response and if there is any misunderstanding or info required, it can take days to get your problem resolved. This is really useless and a deal breaker for serious businesses. Another major failing in Xero is the number of times that the Bank Feed just doesn't work. This is outwith Xero's control and so it can often take months to resolve. This is amateur and best and negligent at worst.
Bewertet am 17.5.2017
Xero - Leading the way to making accounting much easier for small businesses
Paul D.
Kommentare: I have been a Xero certified advisor for 8 years and actually returned the accounting profession because of Xero after deciding to leave because I felt the industry didn't understand delivering value to clients. Xero has been a catalyst for increasing the speed of change in the industry towards a value proposition model. Although like any system success with does come down to using it properly and being prepared to spend the time to understand how it works and to make the most of it, but Xero has been built so intuitively and they have
Vorteile: Great design, intuitive, great support files and videos, invoicing features are very good, being able to add files to transactions is a big time saver, the fact that it is a full accounting system is great in its price range, although for more complex features you may need an add-on application for example full stock management and stock control.
Nachteile: The way the contacts database has been developed could be improved to make importing and exporting data easier, that has improved recently with the addition of client codes field. Also greater flexibility of controlling features a user can access would be great.
Bewertet am 29.8.2016
The best at what it does
William E.
Kommentare: Full Disclosure: I am an accountant and I recommend Xero to many of my clients. When the expectations are in alignment with the capabilities of the software, then everyone is happy. People get into trouble with ANY software when they jump in thinking they know what it does and are then disappointed. All accounting and ERP software has limitations and Xero is no exception, but what it does, it does well. It provides payables, receivables, bank reconciliation and general ledger as its core functionality. There is a very capable estimating/quoting/order/ process that ties into AR invoices smoothly. But, the requisition/purchase/inventory side is very, very basic. In fact there are no requisitions and the purchase orders are so limited that I recommend you not use them. The inventory is only what is needed to make the sales side functional. So, if you need strong inventory support, you have to use a third-party add-on designed just for this purpose.
Vorteile: What is good about Xero are 1) Real-time bank feeds and bank reconciliation - this is what scared the pants off of Intuit and forced them to develop new functionality. 2) Xero fully embraces and enables third-party developers to provide niche solutions that have rich interaction with Xero. 3) The features keep getting better and better quarter after quarter. 4) Perhaps my relationship as a partner skews this, but I've had nothing but excellent support from Xero. I can call someone if I have to, but I almost always get issues resolved through technical support in a timely fashion. Some of my favorite add-ons for Xero are GeoOp for field services, Deputy which integrates its scheduling, time and attendance functions with Xero payroll, and Float which projects cashflow. The new reporting and the tags are fantastic.
Nachteile: There are some features I would like to see "sooner," but they are on the roadmap for "later." People jump on Xero because of the price without having a Xero consultant evaluate their suitability for the application - that can create an expectation gap, and that inevitably leads to an unhappy customer. I just hate it when people let their wallet do their thinking for them and then blame the software because it "doesn't do enough." The payroll is fine. I spoke to the VP in charge of payroll development and he is all about improving the functionality, so it will continue to improve. What is there now is very well designed to be comprehensive and flexible, but there are situations where a third-party payroll like Gusto will make more sense for your organization. They are the first ones to suggest you look at solutions like Gusto, ADP, Paychex and others that integrate seamlessly with Xero. It is annoying that the tags are limited to two categories, and this won't be revised until they have their design for job costing completed. No word yet on when that will be.
Bewertet am 10.11.2017
Fantastic! I finally have the tools from Xero to drive my company to its greatest potential.
Kristen B.
Kommentare: Understanding the numbers! I'm finally educated about my own business, which sounds ridiculous, but so many business owners are creative dreamers that never look at the numbers. Even ones that are successful don't look at the numbers because they feel like it's not necessary - and that's the biggest lie in the world. It's so easy to share the reports with people at all levels in the company, and I feel a fantastic sense of control with the numbers because of Xero.
Vorteile: Cloud availability, choice between manual or automatic accounting, incredible reports, easy to print, beautiful, fun to use, don't have to be an accountant to use it, fantastic break-down of categories and overhead vs. cost of goods. Shows great percentages - growth overall, percentage of sales per category and percentage of expenses per category - easy to understand the nuts and bolts of your business with Xero and make quick changes to your business model when a problem arises.
Nachteile: Balance sheet leaves much to be desired - harder to figure out than the rest of the software and difficult to understand in conjunction with the profit and loss. It's not possible to see a comprehensive financial picture - perhaps what makes it so great for non-accountants is its simplicity makes it hard at times to get into the nitty gritty. The billing aspect of Xero is atrocious, just really, really bad. Invoices on "repeat" stay in a strange ticker until you command them to be sent, it creates a lot of problems. Definitely have a separate billing software if you use Xero, especially if your clients are on subscriptions. I wish it integrated better with a growth planning tool - integrates with CRMs fine but doesn't help you look into the next couple of years, or present a future picture to investors.
Bewertet am 25.7.2019
One stop Accounting solutions for Small to Medium organisations.
Karim K.
- Brilliant design and straight forward full accounting system yet detailed enough to allow user to create management reports.
- It allows direct bank feed letting the book-keepers not to worry about importing bank statements and processing detailed bank reconciliations.
- It also integrates with third party softwares to import direct feed which helps automation possible helps save time.
- It also offers partner programs for external book-keepers and accountants to work on different client books which is a new features other softwares have failed to offer.
- Great price.
- Payroll function is capable to deal with straight forward payroll matters. when dealing with complex calculation, Xero seems limited in its functionality.
- The tracking categories are limited to only two lists. It would have been great if it would have had an option to increase the number of categories to suit individual need.
Bewertet am 12.10.2019
Good Accounting Software, but lack decent reporting and live chat support
Louis J.
Kommentare: We switched from QBO to Xero due to several issues with QBO. However, the migration to Xero is clunky as you have to use a middleman called MoveMyBooks - Xero will pay for up to 2 years books to be moved but any more you must pay. But, things like Employees, Payroll, Expenses etc will not be migrated so you end up spending weeks manually (Yes, Manually) created Expenses yourself all over again in Xero. Very painful and cost my business thousands for false advertising a simple switch,
Vorteile: Easy to use, easy to input data and there's often little popup boxes to explain what elements are. It's cloud managed, so no need to download any software or store anything locally.
Nachteile: Support is a bit, there isn't a live chat support like there is with competitors and it lacks the aesthetics of products like Quicbooks and the same level of reports.
Bewertet am 26.1.2019
Xero is an easy and economical replacement for Quickbooks
Becky D.
Kommentare: I spent quite a bit of time on the phone with the Xero sales rep when determining if I would switch from Quickbooks for Mac (because they decided to no longer support the version I was using). I was trying to decide between Quickbooks Online and Xero and in the end, Xero won. Their price point was spot on and they offered the features I needed without being overly complicated or fancy (I am not an accountant and do not enjoy the bookkeeping / accounting aspect of my business). Xero makes it easy to manage my cashflow, expenses and revenue quickly and easily.
Vorteile: Xero offered a payroll option that was not expensive and easy to use. That combined with the ease of use and the cloud-based accounting is why Xero is my go to choice for small business accounting / bookkeeping. Being able to connect your bank account with Xero and import transactions makes it much easier to keep your books up to date. I used to wait all month before entering my transactions into my checking account and it became a big pain in the butt. This is so much easier!
Nachteile: The fact that you cannot have more than one business in your Xero account is a real bummer. I happen to have more than one business but I'm not willing to buy a subscription for each business. I use one for my most active business for now. Also, if you don't have payroll for awhile, you are no longer able to submit your tax forms as they are not generated, even though I still need to submit them to the taxing authority. There is also a headache when it comes to adding in credit card processing fees to invoices for accurate cash accounting. It's awesome that Stripe is integrated and payments are automatically marked to their appropriate invoice, but to get the fee out of the invoice I have to delete the payment, edit the invoice to include the fee amount, and then add the payment back in.
Bewertet am 13.9.2018
Xero or MYOB?
Karen G.
Xero & MYOB. I love them both - for different reasons. If you're a MYOB lover, do not be afraid of the transition. Simply view Xero as different and you'll be fine. Don't expect to find things in the same dropdown tabs - as it's a different set-up. Once you're familiar, you'll love the ease of use.
Very user friendly, not overcrowded on your pages with too much writing, easy to see information (card files for clients) all on one page - very easy to read and find the information you're after.
Give Xero a try - I know you won't be disappointed.
Love the ease of access. We have a team based in Australia, India, & South America - so the online platform is brilliant.
As a previous MYOB user (& lover of MYOB), I was surprised with the ease of transition from MYOB to Xero.
I also really enjoy how easy it is to link client card files noting the company directors, primary contacts, banking details etc. Very easy to view all the information in one place! Love being able to send the BAS' from Xero as well with a click of the button, and being able to modify & tweak great templates is a MUST.
One thing that is very challenging, is if the Xero team are not getting back to you as promptly as you need, there is NO phone number to talk to someone. This (for the accounting industry) can be a big let down at times. Normally, the Customer Help is very prompt.
Still trying to find an adequate solution so that if I upload a file in my XPM, the rest of my team can view these files. Despite trying and following Xero's suggestions, my team members are still not able to view the documents I've uploaded. We'll get there in the end I'm sure.
Bewertet am 5.5.2018
I used Xero for reviewing clients' invoices and checking our collectibles.
Brent lionel M.
Vorteile: I used to be the marketing and accounts assistant for Expert360, and use Xero together with our accountant based on Pakistan. Xero makes it easy for us to send an invoice to our corporate, medium and small business clients. It allows us to view the overdue invoices, which enables us to follow-up on those payables. We were able to see the money that we had collected and the money that still needs to be collected. It also allowed us to track the payables to our consultants. Over all, Xero is an easy-to-use accounting software. It's user-friendly functions and features allows you to instantly view the cash flow of your business.
Nachteile: One thing that I noticed on the platform is it doesn't allow to create multiple entries from one company. Like we have client A and they have lots of projects with us. We wanted to create like client A1, A2, A3 in the contacts info so that we know who's the one in-charge for each project. But our accountant told us that it would appear in the invoice as client A1, A2, and A3 in the invoice instead of just client A only. He said it would create confusion on the person in-charge for the payments since it's not their usual company name. We contacted Xero about that and they said they will work on the feature and hopefully it will be added in the future. Where you can entire Client A with someone as the contact person and Client A with someone as the contact person. The last time I know you can really just create one contact entry for each client.
Bewertet am 19.7.2018
Overall great. Recently, shocking!
Ray W.
Vorteile: Overall, it's a good product. Easy to use. Simple UI though quite dated. It does everything we need it to plus more.
Nachteile: Until recently, there wasn't much I didn't like. I probably couldn't name anything, apart from the somewhat dated UI - but that's a stretch. Recently however, Xero have taken a core feature (Expenses) and starting selling it as an add-on, on top of the monthly subscription fee. Expenses as you may know, and would expect, is 'included' in the monthly subscription and formed part of the core software. There was no additional charge. They've recently updated the Expenses feature (which they should be doing anyway) and now believe that because they've updated it, that warrants it being pulled from core and sold separately as an add-on. As a current subscriber, I signed up for the all inclusive package. Having features ripped from the core package and charged for in addtion to the monthly subscription is not on. Especially when no discount or reduction of the monthly subscription cost was offered. As a SaaS provider, any and all future updates, regardless of how big or small they are, should form part of the monthly subscription. Choosing an accounting package is a big decision and once you're committed, it's difficult and often costly to change. With Xero now employing this kind of model, I'd caution anyone considering Xero to think again, think hard. Today it's Expenses, tomorrow it could be something else. These disgusting tactics employed by Xero are unacceptable.
Bewertet am 6.9.2019
Best for MultiCurrency Needs
Quratulain H.
Vorteile: I love how easily it helps me keep my accounts in order. I've done some complex book keeping / accounting for one firm as well as some extremely simple work for another with this. It works well with both. Their support is really great. They reply quickly and have some great documentation as well.
Nachteile: They have started some spin-offs from their product at a per user license fee. I think this way it can quickly become costly for some new users. Luckily i've been using this for over 5 years now, hence I don't come under such restrictions.
Bewertet am 19.7.2015
Overall great, but one flaw to be vary of
Phill D.
Kommentare: I have been using Xero for a couple of years now and am very happy with it. I was with MYOB but had a bad experience when they upgraded their systems to include cloud computing. I have had a look at their new systems, and while they are much improved and worth exploring for someone starting from scratch, I will still stick with Xero.
Vorteile: My accountants use it extensively so it makes my work and their work integrate so easily which ultimately saves money. Reconciliation is a very labour intensive exercise and Xero cuts a huge amount of time out of this process. On its own it is quite cheap too. I have an expensive plugin (Tradegecko), but the functionality of that pays for itself. Xero creates the framework of my entire business system.
Nachteile: If you have a business where you have a large number of transactions coming in for the same value, e.g. if you have magazine subscriptions all for $5 a month each then Xero is not a good option, at all. I did have this problem and it was a total pain. I have corresponded extensively with Xero on this issue and they do not see it as a priority and have said directly that they have no intentions on making improvements. This surprises me as their customer service is generally quite good. There is quite a large thread on the support forums on this topic. If this is a potential issue for you then here is my advice. Set up a trial account with Xero and MYOB and test both for this important reconciliation feature. If you know what you are doing it shouldn't take too long (or ask someone who knows what they are doing). These systems change and evolve so quickly that by the time you read this review one of them might have improved their system. MYOB has been beaten badly by Xero in the past few years but from what I have seen (I recently exhibited next to them at a show) they have come a long way since I stopped using their system.
Bewertet am 23.5.2019
the best accountant of the clouds do not fail you.
Samuel J.
Kommentare: Xero is a software that meets my expectations and needs since it is easy to use, configure and can encode some elements such as search functions to locate some particular numbers, business or relevant transactions and multiple key features such as the panel that is can customize and presents a beautiful user interface with graphics for bank accounts has a unique billing template and can be customized and you can easily create quotes and even turn them into purchase order invoices, Xero is a competent accounting management system that works according to the rules and priorities of my company.
Vorteile: xero is a rosbusta accounting software with complex functions also has the mobility and the modern interface of unlimited users one as employee and others for the software of comtabilidad in our businesses and is relatively easy to use and learn enough you can see documents Once they are properly configured allows us to see and consilir our transsations without having to go to the office of the comtable or be or sending mailing or bills as they can be loaded into the system of xero as well can be configured the part of contror to obtain A general overview of your business can also be functional for medium and large companies since they are well developed and offer you a solid and comprehensive functions.
Nachteile: I like this software from xero but lately the customer service has been noticed down and in some of the plans the cost is too high for some companies peueñas.
Bewertet am 8.12.2018
A great option
Johan P.
As a firm we switched to xero almost a year ago, and it transformed the way we approach accounting services for clients - for the better.
Our own internal accounting became a lot easier and smoother, with the greater collaboration that we needed.
But it also changed our clients that we switched over to xero, from other cloud accounting software or traditional desktop software
There isn't a lot of cloud accounting software today that can handle the more complex businesses as well as xero.
The automatic bank feeds (they are adding new direct bank feeds constantly),
the integrations with over 700 third party applications
Automatic invoice reminders
Ability to do flexible budgeting and forecasting in xero and report on it
Tracking Categories and reporting on a Category is super easy
Fixed asset register is included and easy depreciation allocation
Unlimted users (great basic permissions - more flexibility lacking)
There is constant updates and upgrades with a solid product improvement pipeline
Would love a third tracking category
It doesn't have a delivery note option (although through a complex process you can create one)
Customer statements doesn't include the standard days outstanding buckets as expected, e.g. debt due currently, 30 day, 60 days etc
Customer prepayments doesn't appear as credits/negative balances on statements - very confusing to customers
You can't delete a contact once created (very easy to create a contact), only archive
Would have loved for finance lease (amortisation table) reporting to be set automatically
Bewertet am 7.3.2018
This has revolutionized our bookkeeping and reduced our accounting fees.
Alexandra B.
Kommentare: Save time, greater control over my business, fewer errors, save money, more visibility of overall financial health of business. Allows me to work remotely.
Vorteile: I have no bookkeeping background and was able to easily learn how to use Xero. My business partner and I can login from anywhere in the world and get an up to date picture of our finances, pay invoices, review reports, check profitability and more. Our year end process is much faster and streamlined and we feel like we have much more control over our business. We have integrated data from our POS system (Touch Bistro) using the Shogo Integration tool and allows us to track sales by category alongside costs. We have also integrated Payment Evolution with Xero so we can run payroll and make EFT payments to suppliers directly. Invoices are closed out automatically and remittance notices provided saving time, money and keeping our suppliers happy.
Nachteile: Some of the reporting features don't show the information that I need - for example the sales tax report. I also find it frustrating that I can't integrate my online banking with Xero - we use a credit union so this might be the bank's issue. Some of the navigation is not great. For example the search feature can be a little fussy and when you complete an action you don't get returned to the page you left.
Bewertet am 5.12.2016
Xero is awesome, albeit expensive when running multiple entities
Markus H.
We've moved from another software 4 years ago and have not looked back. Bank feed setup is easy, recon is a
breeze. There are lots of add-ons which can assist with specific needs and there are tons of integrations with sales force and other big guns.
The only issues I see is pricing. If you run multiple entities (i.e. for service companies or trusts) the subscription cost adds up quickly. This is because the most basic plan is essentially useless (5 bank transactions a month... if that's all you need, you don't run a business). Compared to emerging competitors pricing is very high.
Another issue, if you rely on it, is email support only. While responses come back within 1 to 3 days, players like Intuit have live chat support, which is amazing at their price point.
All in all, Xero is a solid solution for us though and while we've moved some (nonpayroll) entities off it and onto QuickBooks, it remains our accounting mainstay for the core operations entity. Hope this helps.
easy to use
ticks all boxes for SME accounting
many integration
price, in particular, once you need multiple add-ons
email support only
slow load times (this should be fixed once they moved from Rackspace to AWS apparently)
Bewertet am 9.1.2018
Perfect replacement for Quickbooks - Highly Recommended
Sherm S.
I've used Intuit Quickbooks since 1995. I used to upgrade it about every 10 years, and eventually went with a monthly subscription to take advantage of upgraded features, notably auto-connecting with my online bank accounts. Unfortunately, QB would not connect with Paypal so I decided to abandon it.
I searched for a replacement, checked out FreshBooks (which really isn't an accounting program, it's just an invoicing program -- sort of useless) and came upon Xero. I signed up for a free demo account and really liked it particularly because it connects to my bank and Paypal seamlessly. I like it for its reporting, and easy to get at everything that I need. I run a marketing agency and it's just about a perfect fit. Easy email-invoicing, with easy connections to online payments through Paypal (Quickbooks tries to force you to use their merchant account). I set up my clients one at a time as I invoice them each month, email the invoice (with a PDF attachment) with a link to pay with a card, and the software tracks the payment and credits the client's account immediately.
Nachteile: One of the downsides of using XERO vs Quickbooks is that finding accountants that can handle the files is relatively rare. And I'm wondering if it will connect with tax prep software with no problems. (That was ONE saving grace of Quickbooks is that it would import your financials into their tax prep program).
Bewertet am 17.8.2018
Complete true accounting online
Bill B.
Kommentare: Prior to Xero I was using a PC-based app. It lacked any connectivity and all data had to be manually imported and exported. I needed to automate as much of my day-to-day business operations as possible, and Xero was a big part of that. It integrates with my CRM and time-tracking app, and takes in my online payment processing. Reconciliation takes a minute or two every couple of days. It has enabled me to reduce my after-hours office time significantly.
Vorteile: Xero is a new-generation online accounting app built from the ground up for online usage. The interface is mostly intuitive and easy to navigate. The underlying framework is true double-entry accounting with all the power that provides, but you don't have to go there to get daily work done, as a rule. There is a vast array of integrations available to add leverage to your company dataflow. Support is good and rarely needed. The app is very well documented and supplies detailed help articles for most operations.
Nachteile: The pricing is not bad but I feel it is a little high for a one-person business. They offer a time-tracking add-on but it is an additional 50% of the app cost per month, and this is a feature many competitors throw in for free. Like all web-based apps, your enjoyment in using it will depend in part on the quality of your internet connection.
Bewertet am 28.1.2019
Good software, terrible support and company
Joseph V.
Kommentare: General use of the software is good. The company and technical support made me consider going back to Quickbooks online. Instead I switched to Freshbooks. Great technical support. They answer within 4 rings. Very knowledgeable and patient. 10 out of 10 for support.
Vorteile: I previously used quickbooks pro, but found their product too expensive and the support was also not very good. I switched to Xero, because of the price and the quality of the software
Nachteile: Support is only via email. They initially respond within the promised time frame, but 9/10 times the answer is not relevant to the question asked. It's like they don't read the question, or the initial techs are inexperienced. So after wait on average 4 hours for a response, you have to wait long for a reply to any subsequent answer, which is 9/10 times not relevant to the question. So, in my experience you have little if no support for the software. Then, mid year they suddenly drop their payroll feature off their software and announce you can run your payroll through this other company. Wonderful. Suddenly the total cost of accounting has now doubled because Xero didn't decrease their price and it now costs the same amount again to run payroll. A company that does this in my opinion does not show much integrity.
Bewertet am 22.11.2018
One of the absolute cutting edge, super-easy on the eyes, full function bookkeeping apps
Michael B.
Accounting and bookkeeping are my business, so being able to demo such an aesthetically pleasant app that integrates so well is a real boon. Clients take immediately to the UI and we've genuinely had a 90% on-board rate with Xero. We've tried other Apps, but we won't be working with any other software. There's really there's nothing out there we'd rather recommend.
I have found their CS to be first rate, (despite my Account Manager statement), and this end of any accounting SAAS is absolutely vital.
Xero has set the standard for over a decade and it's a testimony to their Devs that they're growing steadily despite their giant competition.
Smooth-running and numerous integrations with other essential business management apps
Reasonably priced for small business
Has integrated inventory and billing through PayPal and Stripe
Nachteile: I'm a very loyal user and my company has grown up shoulder-to-shoulder with Xero's growth. There's very few wrinkles from an accountant's POV. I find startup clients sometimes get confused with the "Easy-to-Use-And-Setup" spiel - it certainly is for a bookkeeper familiar with the app! In general, the dashboard apps in this industry can belie their many-layered nature.


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The theory of large deviations, a branch of probability theory, provides tools for the description of the asymptotic decay rate of a small probability, as a certain parameter diverges or shrinks to zero. Examples are large times, low temperatures, large numbers of stochastic quantities, or an approximation parameter. In this way the deviation of a stochastic quantity from its expected behaviour can often be described, e.g. the deviation of an empirical average from the mean in the law of large numbers. The decay rate is expressed in terms of a non-negative rate function, which in many cases is explicit. Its minimiser(s) often describe(s) the normal behaviour of the stochastic system under interest in terms of a variational formula. Furthermore, the rate function contains information about the behaviour of the system that gives the main contribution to the rare event under consideration. Hence, variational methods are often very helpful in analysing the stochastic system. Often, the large-deviation analysis is only a starting point for deeper analysis, like the investigation of finer asymptotics or of deviations on different scales.
Furthermore, the theory provides also tools and concepts for the description of the asymptotics of expectations of exponential functionals of the system. This applies to the partition functions for many models in statistical physics. The description is in terms of a variational formula that shows the best compromise between the functional and the rate function. In many cases, the object that satisfies a large-deviations principle is not immediately apparent and has to be found by suitable reformulations of the problem.
Contribution of the Institute
At WIAS, large-deviation theory is employed for the analysis of various models from quite different areas.
For instance, in statistical physics or atomistic materials science, classical and quantum mechanical stochastic many-body systems are investigated using methods from this theory. Here large, but finite point clouds in large boxes in the euclidean space are under the influence of a pair-interaction that rules out strong clumping (mutually repelling forces), but favours distances of a certain fixed amount (attracting forces). Such systems are defined in terms of a Gibbs measure with Lennard-Jones potential. In the thermodynamic limit (many particles in a large box with fixed particle density), one of the interesting questions is about the sizes of the subgroups (clusters) that are formed. In one work a large-deviation principle for the statistics of these cardinalities is derived and could by described quite explicitly in a certain low-density regime. If kinetic energy is added to any of the particles and a certain symmetry to the system, describing bosons, then a large-deviation principle for the empirical stationary field of a certain marked Poisson point process involving Brownian bridges proved helpful for the analysis of the limiting free energy of the system.
A highlight was the derivation of a prominent large-deviation principle for the normalised occupation measure of a Brownian motion without requesting compactness.
A further example is the study of the decay rate of
frustration probabilities, that is, the probability of unwanted events in a telecommunications network in the limit of a high density of participants. The unwanted events are occurrences such as significantly reduced connectivity or low capacity. The decay rates of such events were analysed by the Leibniz Group 4 and in particular the configurations that lead to such events were investigated. The main focus for multi-hop communication is on the question of whether the network is mainly degraded when many participants come together and cause mutual interference or whether problems are more likely to arise due to having insufficient participants to relay messages through critical regions.
Large deviations play also an important role in the approximation of the Smoluchowski equation with the empirical process of coagulating Brownian motions, see the Application Area Coagulation. The deviations of the approximating process from the equation is described, in the spirit of Wentsel-Freidlin theory, by an explicit rate function, which gives rise to the construction of gradient flows.
W. König, The Parabolic Anderson Model -- Random Walks in Random Potential, Pathways in Mathematics, Birkhäuser, Basel, 2016, xi+192 pages, (Monograph Published).
Articles in Refereed Journals
F. Flegel, M. Heida, M. Slowik, Homogenization theory for the random conductance model with degenerate ergodic weights and unbounded-range jumps, Annales de l'Institut Henri Poincare. Probabilites et Statistiques, 55 (2019), pp. 1226--1257, DOI 10.1214/18-AIHP917 .
We study homogenization properties of the discrete Laplace operator with random conductances on a large domain in Zd. More precisely, we prove almost-sure homogenization of the discrete Poisson equation and of the top of the Dirichlet spectrum. We assume that the conductances are stationary, ergodic and nearest-neighbor conductances are positive. In contrast to earlier results, we do not require uniform ellipticity but certain integrability conditions on the lower and upper tails of the conductances. We further allow jumps of arbitrary length. Without the long-range connections, the integrability condition on the lower tail is optimal for spectral homogenization. It coincides with a necessary condition for the validity of a local central limit theorem for the random walk among random conductances. As an application of spectral homogenization, we prove a quenched large deviation principle for thenormalized and rescaled local times of the random walk in a growing box. Our proofs are based on a compactness result for the Laplacian's Dirichlet energy, Poincaré inequalities, Moser iteration and two-scale convergence
CH. Bayer, P. Friz, A. Gulisashvili, B. Horvath, B. Stemper, Short-time near-the-money skew in rough fractional volatility models, Quantitative Finance, 19 (2019), pp. 779--798, DOI 10.1080/14697688.2018.1529420 .
We consider rough stochastic volatility models where the driving noise of volatility has fractional scaling, in the "rough" regime of Hurst parameter H < ½. This regime recently attracted a lot of attention both from the statistical and option pricing point of view. With focus on the latter, we sharpen the large deviation results of Forde-Zhang (2017) in a way that allows us to zoom-in around the money while maintaining full analytical tractability. More precisely, this amounts to proving higher order moderate deviation estimates, only recently introduced in the option pricing context. This in turn allows us to push the applicability range of known at-the-money skew approximation formulae from CLT type log-moneyness deviations of order t1/2 (recent works of Alòs, León & Vives and Fukasawa) to the wider moderate deviations regime.
M. Heida, M. Röger, Large deviation principle for a stochastic Allen--Cahn equation, Journal of Theoretical Probability, 31 (2018), pp. 364--401, DOI 10.1007/s10959-016-0711-7 .
The Allen-Cahn equation is a prototype model for phase separation processes, a fundamental example of a nonlinear spatial dynamic and an important approximation of a geometric evolution equation by a reaction-diffusion equation. Stochastic perturbations, especially in the case of additive noise, to the Allen-Cahn equation have attracted considerable attention. We consider here an alternative random perturbation determined by a Brownian flow of spatial diffeomorphism that was introduced by Röger and Weber [Stoch. Partial Differ. Equ. Anal. Comput. 1 (2013)]. We first provide a large deviation principle for stochastic flows in spaces of functions that are Hölder-continuous in time, which extends results by Budhiraja, Dupuis and Maroulas [Ann. Probab. 36 (2008)]. From this result and a continuity argument we deduce a large deviation principle for the Allen-Cahn equation perturbed by a Brownian flow in the limit of small noise. Finally, we present two asymptotic reductions of the large deviation functional.
D.R.M. Renger, Flux large deviations of independent and reacting particle systems, with implications for macroscopic fluctuation theory, Journal of Statistical Physics, 172 (2018), pp. 1291--1326, DOI 10.1007/s10955-018-2083-0 .
We consider a system of independent particles on a finite state space, and prove a dynamic large-deviation principle for the empirical measure-empirical flux pair, taking the specific fluxes rather than net fluxes into account. We prove the large deviations under deterministic initial conditions, and under random initial conditions satisfying a large-deviation principle. We then show how to use this result to generalise a number of principles from Macroscopic Fluctuation Theory to the finite-space setting.
D.R.M. Renger, P. Koltai , From large deviations to transport semidistances: Coherence analysis for finite Lagrangian data, Journal of Non-Newtonian Fluid Mechanics, 28 (2018), pp. 1915--1957, DOI 10.1007/s00332-018-9471-0 .
Onsager's 1931 `reciprocity relations' result connects microscopic time-reversibility with a symmetry property of corresponding macroscopic evolution equations. Among the many consequences is a variational characterization of the macroscopic evolution equation as a gradient-flow, steepest-ascent, or maximal-entropy-production equation. Onsager's original theorem is limited to close-to-equilibrium situations, with a Gaussian invariant measure and a linear macroscopic evolution. In this paper we generalize this result beyond these limitations, and show how the microscopic time-reversibility leads to natural generalized symmetry conditions, which take the form of generalized gradient flows.
D.R.M. Renger, Gradient and GENERIC systems in the space of fluxes, applied to reacting particle systems, Entropy. An International and Interdisciplinary Journal of Entropy and Information Studies, 20 (2018), pp. 596/1--596/26, DOI 10.3390/e20080596 .
In a previous work we devised a framework to derive generalised gradient systems for an evolution equation from the large deviations of an underlying microscopic system, in the spirit of the Onsager-Machlup relations. Of particular interest is the case where the microscopic system consists of random particles, and the macroscopic quantity is the empirical measure or concentration. In this work we take the particle flux as the macroscopic quantity, which is related to the concentration via a continuity equation. By a similar argument the large deviations can induce a generalised gradient or Generic system in the space of fluxes. In a general setting we study how flux gradient or generic systems are related to gradient systems of concentrations. The arguments are explained by the example of reacting particle systems, which is later expanded to include spatial diffusion as well.
CH. Hirsch, B. Jahnel, R.I.A. Patterson, Space-time large deviations in capacity-constrained relay networks, ALEA. Latin American Journal of Probability and Mathematical Statistics, 15 (2018), pp. 587--615, DOI 10.30757/ALEA.v15-24 .
We consider a single-cell network of random transmitters and fixed relays in a bounded domain of Euclidean space. The transmitters arrive over time and select one relay according to a spatially inhomogeneous preference kernel. Once a transmitter is connected to a relay, the connection remains and the relay is occupied. If an occupied relay is selected by another transmitters with later arrival time, this transmitter becomes frustrated. We derive a large deviation principle for the space-time evolution of frustrated transmitters in the high-density regime.
CH. Bayer, P. Friz, A. Gulisashvili, B. Horvath, B. Stemper, Short-time near-the-money skew in rough fractional volatility models, Quantitative Finance, 19 (2019), pp. 779--798 (published online on 13.11.2018), DOI 10.1080/14697688.2018.1529420 .
We consider rough stochastic volatility models where the driving noise of volatility has fractional scaling, in the "rough" regime of Hurst parameter H < ½. This regime recently attracted a lot of attention both from the statistical and option pricing point of view. With focus on the latter, we sharpen the large deviation results of Forde-Zhang (2017) in a way that allows us to zoom-in around the money while maintaining full analytical tractability. More precisely, this amounts to proving higher order moderate deviation estimates, only recently introduced in the option pricing context. This in turn allows us to push the applicability range of known at-the-money skew approximation formulae from CLT type log-moneyness deviations of order t1/2 (recent works of Alòs, León & Vives and Fukasawa) to the wider moderate deviations regime.
M. Liero, A. Mielke, M.A. Peletier, D.R.M. Renger, On microscopic origins of generalized gradient structures, Discrete and Continuous Dynamical Systems -- Series S, 10 (2017), pp. 1--35, DOI 10.3934/dcdss.2017001 .
Classical gradient systems have a linear relation between rates and driving forces. In generalized gradient systems we allow for arbitrary relations derived from general non-quadratic dissipation potentials. This paper describes two natural origins for these structures. A first microscopic origin of generalized gradient structures is given by the theory of large-deviation principles. While Markovian diffusion processes lead to classical gradient structures, Poissonian jump processes give rise to cosh-type dissipation potentials. A second origin arises via a new form of convergence, that we call EDP-convergence. Even when starting with classical gradient systems, where the dissipation potential is a quadratic functional of the rate, we may obtain a generalized gradient system in the evolutionary Gamma-limit. As examples we treat (i) the limit of a diffusion equation having a thin layer of low diffusivity, which leads to a membrane model, and (ii) the limit of diffusion over a high barrier, which gives a reaction-diffusion system.
W. van Zuijlen, Large deviations of continuous regular conditional probabilities, Journal of Theoretical Probability, published online on 27.12.2016., DOI 10.1007/s10959-016-0733-1 .
E. Bolthausen, W. König, Ch. Mukherjee, Mean-field interaction of Brownian occupation measures. II: A rigorous construction of the Pekar process, Communications on Pure and Applied Mathematics, 70 (2017), pp. 1598--1629.
We consider mean-field interactions corresponding to Gibbs measures on interacting Brownian paths in three dimensions. The interaction is self-attractive and is given by a singular Coulomb potential. The logarithmic asymptotics of the partition function for this model were identified in the 1980s by Donsker and Varadhan [DV83] in terms of the Pekar variational formula, which coincides with the behavior of the partition function corresponding to the polaron problem under strong coupling. Based on this, Spohn ([Sp87]) made a heuristic observation that the strong coupling behavior of the polaron path measure, on certain time scales, should resemble a process, named as the itPekar process, whose distribution could somehow be guessed from the limiting asymptotic behavior of the mean-field measures under interest, whose rigorous analysis remained open. The present paper is devoted to a precise analysis of these mean-field path measures and convergence of the normalized occupation measures towards an explicit mixture of the maximizers of the Pekar variational problem. This leads to a rigorous construction of the aforementioned Pekar process and hence, is a contribution to the understanding of the "mean-field approximation" of the polaron problem on the level of path measures. The method of our proof is based on the compact large deviation theory developed in [MV14], its extension to the uniform strong metric for the singular Coulomb interaction carried out in [KM15], as well as an idea inspired by a itpartial path exchange argument appearing in [BS97]
J.-D. Deuschel, P. Friz, M. Maurelli, M. Slowik, The enhanced Sanov theorem and propagation of chaos, Stochastic Processes and their Applications, 128 (2018), pp. 2228--2269 (published online on 21.09.2017), DOI 10.1016/j.spa.2017.09.010 .
We establish a Sanov type large deviation principle for an ensemble of interacting Brownian rough paths. As application a large deviations for the (k-layer, enhanced) empirical measure of weakly interacting diffusions is obtained. This in turn implies a propagation of chaos result in a space of rough paths and allows for a robust analysis of the particle system and its McKean?Vlasov type limit, as shown in two corollaries.
CH. Hirsch, B. Jahnel, P. Keeler, R.I.A. Patterson, Large deviations in relay-augmented wireless networks, Queueing Systems. Theory and Applications, 88 (2018), pp. 349--387 (published online on 28.10.2017).
We analyze a model of relay-augmented cellular wireless networks. The network users, who move according to a general mobility model based on a Poisson point process of continuous trajectories in a bounded domain, try to communicate with a base station located at the origin. Messages can be sent either directly or indirectly by relaying over a second user. We show that in a scenario of an increasing number of users, the probability that an atypically high number of users experiences bad quality of service over a certain amount of time, decays at an exponential speed. This speed is characterized via a constrained entropy minimization problem. Further, we provide simulation results indicating that solutions of this problem are potentially non-unique due to symmetry breaking. Also two general sources for bad quality of service can be detected, which we refer to as isolation and screening.
W. König, Ch. Mukherjee, Mean-field interaction of Brownian occupation measures. I: Uniform tube property of the Coulomb functional, Annales de l'Institut Henri Poincare. Probabilites et Statistiques, 53 (2017), pp. 2214--2228, DOI 10.1214/16-AIHP788 .
We study the transformed path measure arising from the self-interaction of a three-dimensional Brownian motion via an exponential tilt with the Coulomb energy of the occupation measures of the motion by time $t$. The logarithmic asymptotics of the partition function were identified in the 1980s by Donsker and Varadhan [DV83-P] in terms of a variational formula. Recently [MV14] a new technique for studying the path measure itself was introduced, which allows for proving that the normalized occupation measure asymptotically concentrates around the set of all maximizers of the formula. In the present paper, we show that likewise the Coulomb functional of the occupation measure concentrates around the set of corresponding Coulomb functionals of the maximizers in the uniform topology. This is a decisive step on the way to a rigorous proof of the convergence of the normalized occupation measures towards an explicit mixture of the maximizers, which will be carried out elsewhere. Our methods rely on deriving Hölder-continuity of the Coulomb functional of the occupation measure with exponentially small deviation probabilities and invoking the large-deviation theory developed in [MV14] to a certain shift-invariant functional of the occupation measures.
A. Mielke, R.I.A. Patterson, M.A. Peletier, D.R.M. Renger, Non-equilibrium thermodynamical principles for chemical reactions with mass-action kinetics, SIAM Journal on Applied Mathematics, 77 (2017), pp. 1562--1585, DOI 10.1137/16M1102240 .
We study stochastic interacting particle systems that model chemical reaction networks on the micro scale, converging to the macroscopic Reaction Rate Equation. One abstraction level higher, we study the ensemble of such particle systems, converging to the corresponding Liouville transport equation. For both systems, we calculate the corresponding large deviations and show that under the condition of detailed balance, the large deviations induce a non-linear relation between thermodynamic fluxes and free energy driving force.
CH. Hirsch, B. Jahnel, P. Keeler, R.I.A. Patterson, Large-deviation principles for connectable receivers in wireless networks, Advances in Applied Probability, 48 (2016), pp. 1061--1094.
We study large-deviation principles for a model of wireless networks consisting of Poisson point processes of transmitters and receivers, respectively. To each transmitter we associate a family of connectable receivers whose signal-to-interference-and-noise ratio is larger than a certain connectivity threshold. First, we show a large-deviation principle for the empirical measure of connectable receivers associated with transmitters in large boxes. Second, making use of the observation that the receivers connectable to the origin form a Cox point process, we derive a large-deviation principle for the rescaled process of these receivers as the connection threshold tends to zero. Finally, we show how these results can be used to develop importance-sampling algorithms that substantially reduce the variance for the estimation of probabilities of certain rare events such as users being unable to connect.
S. Jansen, W. König, B. Metzger, Large deviations for cluster size distributions in a continuous classical many-body system, The Annals of Applied Probability, 25 (2015), pp. 930--973.
An interesting problem in statistical physics is the condensation of classical particles in droplets or clusters when the pair-interaction is given by a stable Lennard-Jones-type potential. We study two aspects of this problem. We start by deriving a large deviations principle for the cluster size distribution for any inverse temperature $betain(0,infty)$ and particle density $rhoin(0,rho_rmcp)$ in the thermodynamic limit. Here $rho_rmcp >0$ is the close packing density. While in general the rate function is an abstract object, our second main result is the $Gamma$-convergence of the rate function towards an explicit limiting rate function in the low-temperature dilute limit $betatoinfty$, $rho downarrow 0$ such that $-beta^-1logrhoto nu$ for some $nuin(0,infty)$. The limiting rate function and its minimisers appeared in recent work, where the temperature and the particle density were coupled with the particle number. In the de-coupled limit considered here, we prove that just one cluster size is dominant, depending on the parameter $nu$. Under additional assumptions on the potential, the $Gamma$-convergence along curves can be strengthened to uniform bounds, valid in a low-temperature, low-density rectangle.
D. Belomestny, M. Ladkau, J.G.M. Schoenmakers, Simulation based policy iteration for American style derivatives -- A multilevel approach, SIAM ASA J. Uncertainty Quantification, 3 (2015), pp. 460--483.
This paper presents a novel approach to reduce the complexity of simulation based policy iteration methods for pricing American options. Typically, Monte Carlo construction of an improved policy gives rise to a nested simulation algorithm for the price of the American product. In this respect our new approach uses the multilevel idea in the context of the inner simulations required, where each level corresponds to a specific number of inner simulations. A thorough analysis of the crucial convergence rates in the respective multilevel policy improvement algorithm is presented. A detailed complexity analysis shows that a significant reduction in computational effort can be achieved in comparison to standard Monte Carlo based policy iteration.
M. Erbar, J. Maas, D.R.M. Renger, From large deviations to Wasserstein gradient flows in multiple dimensions, Electronic Communications in Probability, 20 (2015), pp. 1--12.
We study the large deviation rate functional for the empirical distribution of independent Brownian particles with drift. In one dimension, it has been shown by Adams, Dirr, Peletier and Zimmer [ADPZ11] that this functional is asymptotically equivalent (in the sense of Gamma-convergence) to the Jordan-Kinderlehrer-Otto functional arising in the Wasserstein gradient flow structure of the Fokker-Planck equation. In higher dimensions, part of this statement (the lower bound) has been recently proved by Duong, Laschos and Renger, but the upper bound remained open, since the proof in [DLR13] relies on regularity properties of optimal transport maps that are restricted to one dimension. In this note we present a new proof of the upper bound, thereby generalising the result of [ADPZ11] to arbitrary dimensions.
O. Gün, W. König, O. Sekulović, Moment asymptotics for multitype branching random walks in random environment, Journal of Theoretical Probability, 28 (2015), pp. 1726--1742.
We study a discrete time multitype branching random walk on a finite space with finite set of types. Particles follow a Markov chain on the spatial space whereas offspring distributions are given by a random field that is fixed throughout the evolution of the particles. Our main interest lies in the averaged (annealed) expectation of the population size, and its long-time asymptotics. We first derive, for fixed time, a formula for the expected population size with fixed offspring distributions, which is reminiscent of a Feynman-Kac formula. We choose Weibull-type distributions with parameter 1/ρij for the upper tail of the mean number of j type particles produced by an i type particle. We derive the first two terms of the long-time asymptotics, which are written as two coupled variational formulas, and interpret them in terms of the typical behavior of the system.
W. König, T. Wolff, Large deviations for the local times of a random walk among random conductances in a growing box, Special issue for Pastur's 75th birthday, Markov Processes and Related Fields, 21 (2015), pp. 591--638.
We derive an annealed large deviation principle (LDP) for the normalised and rescaled local times of a continuous-time random walk among random conductances (RWRC) in a time-dependent, growing box in Zd. We work in the interesting case that the conductances are positive, but may assume arbitrarily small values. Thus, the underlying picture of the principle is a joint strategy of small conductance values and large holding times of the walk. The speed and the rate function of our principle are explicit in terms of the lower tails of the conductance distribution as well as the time-dependent size of the box.
An interesting phase transition occurs if the thickness parameter of the conductance tails exceeds a certain threshold: for thicker tails, the random walk spreads out over the entire growing box, for thinner tails it stays confined to some bounded region. In fact, in the first case, the rate function turns out to be equal to the p-th power of the p-norm of the gradient of the square root for some 2d/(d+2) < p < 2. This extends the Donsker-Varadhan-Gärtner rate function for the local times of Brownian motion (with deterministic environment) from p=2 to these values.
As corollaries of our LDP, we derive the logarithmic asymptotics of the non-exit probability of the RWRC from the growing box, and the Lifshitz tails of the generator of the RWRC, the randomised Laplace operator. To contrast with the annealed, not uniformly elliptic case, we also provide an LDP in the quenched setting for conductances that are bounded and bounded away from zero. The main tool here is a spectral homogenisation result, based on a quenched invariance principle for the RWRC.
A. Mielke, M.A. Peletier, D.R.M. Renger, On the relation between gradient flows and the large-deviation principle, with applications to Markov chains and diffusion, Potential Analysis, 41 (2014), pp. 1293--1325.
Motivated by the occurence in rate functions of time-dependent large-deviation principles, we study a class of non-negative functions ℒ that induce a flow, given by ℒ(zt,żt)=0. We derive necessary and sufficient conditions for the unique existence of a generalized gradient structure for the induced flow, as well as explicit formulas for the corresponding driving entropy and dissipation functional. In particular, we show how these conditions can be given a probabilistic interpretation when ℒ is associated to the large deviations of a microscopic particle system. Finally, we illustrate the theory for independent Brownian particles with drift, which leads to the entropy-Wasserstein gradient structure, and for independent Markovian particles on a finite state space, which leads to a previously unknown gradient structure.
M.H. Duong, V. Laschos, M. Renger, Wasserstein gradient flows from large deviations of many-particle limits, ESAIM. Control, Optimisation and Calculus of Variations, 19 (2013), pp. 1166--1188.
M.A. Peletier, M. Renger, M. Veneroni, Variational formulation of the Fokker--Planck equation with decay: A particle approach, Communications in Contemporary Mathematics, 15 (2013), pp. 1350017/1--1350017/43.
W. König, Ch. Mukherjee, Large deviations for Brownian intersection measures, Communications on Pure and Applied Mathematics, 66 (2013), pp. 263--306.
We consider $p$ independent Brownian motions in $R^d$. We assume that $pgeq 2$ and $p(d-2)<d$. Let $ell_t$ denote the intersection measure of the $p$ paths by time $t$, i.e., the random measure on $R^d$ that assigns to any measurable set $Asubset R^d$ the amount of intersection local time of the motions spent in $A$ by time $t$. Earlier results of Chen citeCh09 derived the logarithmic asymptotics of the upper tails of the total mass $ell_t(R^d)$ as $ttoinfty$. In this paper, we derive a large-deviation principle for the normalised intersection measure $t^-pell_t$ on the set of positive measures on some open bounded set $BsubsetR^d$ as $ttoinfty$ before exiting $B$. The rate function is explicit and gives some rigorous meaning, in this asymptotic regime, to the understanding that the intersection measure is the pointwise product of the densities of the normalised occupation times measures of the $p$ motions. Our proof makes the classical Donsker-Varadhan principle for the latter applicable to the intersection measure. A second version of our principle is proved for the motions observed until the individual exit times from $B$, conditional on a large total mass in some compact set $Usubset B$. This extends earlier studies on the intersection measure by König and Mörters citeKM01,KM05.
M. Becker, W. König, Self-intersection local times of random walks: Exponential moments in subcritical dimensions, Probability Theory and Related Fields, 154 (2012), pp. 585--605.
Fix $p>1$, not necessarily integer, with $p(d-2)
0$ that are bounded from above, possibly tending to zero. The speed is identified in terms of mixed powers of $t$ and $theta_t$, and the precise rate is characterized in terms of a variational formula, which is in close connection to the it Gagliardo-Nirenberg inequality. As a corollary, we obtain a large-deviation principle for $ ell_t _p/(t r_t)$ for deviation functions $r_t$ satisfying $t r_tggE[ ell_t _p]$. Informally, it turns out that the random walk homogeneously squeezes in a $t$-dependent box with diameter of order $ll t^1/d$ to produce the required amount of self-intersections. Our main tool is an upper bound for the joint density of the local times of the walk.
S. Adams, A. Collevecchio, W. König, A variational formula for the free energy of an interacting many-particle system, The Annals of Probability, 39 (2011), pp. 683--728.
We consider $N$ bosons in a box in $R^d$ with volume $N/rho$ under the influence of a mutually repellent pair potential. The particle density $rhoin(0,infty)$ is kept fixed. Our main result is the identification of the limiting free energy, $f(beta,rho)$, at positive temperature $1/beta$, in terms of an explicit variational formula, for any fixed $rho$ if $beta$ is sufficiently small, and for any fixed $beta$ if $rho$ is sufficiently small. The thermodynamic equilibrium is described by the symmetrised trace of $rm e^-beta Hcal_N$, where $Hcal_N$ denotes the corresponding Hamilton operator. The well-known Feynman-Kac formula reformulates this trace in terms of $N$ interacting Brownian bridges. Due to the symmetrisation, the bridges are organised in an ensemble of cycles of various lengths. The novelty of our approach is a description in terms of a marked Poisson point process whose marks are the cycles. This allows for an asymptotic analysis of the system via a large-deviations analysis of the stationary empirical field. The resulting variational formula ranges over random shift-invariant marked point fields and optimizes the sum of the interaction and the relative entropy with respect to the reference process. In our proof of the lower bound for the free energy, we drop all interaction involving lq infinitely longrq cycles, and their possible presence is signalled by a loss of mass of the lq finitely longrq cycles in the variational formula. In the proof of the upper bound, we only keep the mass on the lq finitely longrq cycles. We expect that the precise relationship between these two bounds lies at the heart of Bose-Einstein condensation and intend to analyse it further in future.
W. König, P. Schmid, Brownian motion in a truncated Weyl chamber, Markov Processes and Related Fields, 17 (2011), pp. 499--522.
We examine the non-exit probability of a multidimensional Brownian motion from a growing truncated Weyl chamber. Different regimes are identified according to the growth speed, ranging from polynomial decay over stretched-exponential to exponential decay. Furthermore we derive associated large deviation principles for the empirical measure of the properly rescaled and transformed Brownian motion as the dimension grows to infinity. Our main tool is an explicit eigenvalue expansion for the transition probabilities before exiting the truncated Weyl chamber.
A. Collevecchio, W. König, P. Mörters, N. Sidorova, Phase transitions for dilute particle systems with Lennard--Jones potential, Communications in Mathematical Physics, 299 (2010), pp. 603--630.
G. Grüninger, W. König, Potential confinement property in the parabolic Anderson model, Annales de l'Institut Henri Poincare. Probabilites et Statistiques, 45 (2009), pp. 840--863.
W. König, H. Lacoin, P. Mörters, N. Sidorova, A two cities theorem for the parabolic Anderson model, The Annals of Probability, 37 (2009), pp. 347--392.
Contributions to Collected Editions
TH. Dickhaus, H. Finner, Asymptotic density crossing points of self-normalized sums and normal (electronic only), in: Proceedings of the 3rd Annual International Conference on Computational Mathematics, Computational Geometry and Statistics, CMCGS 2014, Singapore, February 3--4, 2014, Global Science and Technology Forum (GSTF), Singapore, pp. 84--88.
Preprints, Reports, Technical Reports
A. Hinsen, B. Jahnel, E. Cali, J.-P. Wary, Phase transitions for chase-escape models on Gilbert graphs, Preprint no. 2642, WIAS, Berlin, 2019, DOI 10.20347/WIAS.PREPRINT.2642 .
Abstract, PDF (219 kByte)
We present results on phase transitions of local and global survival in a two-species model on Gilbert graphs. At initial time there is an infection at the origin that propagates on the Gilbert graph according to a continuous-time nearest-neighbor interacting particle system. The Gilbert graph consists of susceptible nodes and nodes of a second type, which we call white knights. The infection can spread on susceptible nodes without restriction. If the infection reaches a white knight, this white knight starts to spread on the set of infected nodes according to the same mechanism, with a potentially different rate, giving rise to a competition of chase and escape. We show well-definedness of the model, isolate regimes of global survival and extinction of the infection and present estimates on local survival. The proofs rest on comparisons to the process on trees, percolation arguments and finite-degree approximations of the underlying random graphs.
CH. Hirsch, B. Jahnel, A. Tóbiás, Lower large deviations for geometric functionals, Preprint no. 2632, WIAS, Berlin, 2019, DOI 10.20347/WIAS.PREPRINT.2632 .
Abstract, PDF (1268 kByte)
This work develops a methodology for analyzing large-deviation lower tails associated with geometric functionals computed on a homogeneous Poisson point process. The technique applies to characteristics expressed in terms of stabilizing score functions exhibiting suitable monotonicity properties. We apply our results to clique counts in the random geometric graph, intrinsic volumes of Poisson--Voronoi cells, as well as power-weighted edge lengths in the random geometric, κ-nearest neighbor and relative neighborhood graph.
M. Mittnenzweig, Hydrodynamic limit and large deviations of reaction-diffusion master equations, Preprint no. 2521, WIAS, Berlin, 2018, DOI 10.20347/WIAS.PREPRINT.2521 .
Abstract, PDF (389 kByte)
We derive the hydrodynamic limit of a reaction-diffusion master equation, that combines an exclusion process with a reversible chemical master equation expression for the reaction rates. The crucial assumption is that the associated macroscopic reaction network has a detailed balance equilibrium. The hydrodynamic limit is given by a system of reaction-diffusion equations with a modified mass action law for the reaction rates. We provide the upper bound for large deviations of the empirical measure from the hydrodynamic limit.
D.R.M. Renger, Gradient and Generic systems in the space of fluxes, applied to reacting particle systems, Preprint no. 2516, WIAS, Berlin, 2018, DOI 10.20347/WIAS.PREPRINT.2516 .
Abstract, PDF (392 kByte)
In a previous work we devised a framework to derive generalised gradient systems for an evolution equation from the large deviations of an underlying microscopic system, in the spirit of the Onsager-Machlup relations. Of particular interest is the case where the microscopic system consists of random particles, and the macroscopic quantity is the empirical measure or concentration. In this work we take the particle flux as the macroscopic quantity, which is related to the concentration via a continuity equation. By a similar argument the large deviations can induce a generalised gradient or Generic system in the space of fluxes. In a general setting we study how flux gradient or generic systems are related to gradient systems of concentrations. The arguments are explained by the example of reacting particle systems, which is later expanded to include spatial diffusion as well.
R.I.A. Patterson, D.R.M. Renger, Large deviations of reaction fluxes, Preprint no. 2491, WIAS, Berlin, 2018, DOI 10.20347/WIAS.PREPRINT.2491 .
Abstract, PDF (304 kByte)
We study a system of interacting particles that randomly react to form new particles. The reaction flux is the rescaled number of reactions that take place in a time interval. We prove a dynamic large-deviation principle for the reaction fluxes under general assumptions that include mass-action kinetics. This result immediately implies the dynamic large deviations for the empirical concentration.
Talks, Poster
M. Maurelli, Sanov theorem for Brownian rough paths and an application to interacting particles, Università di Roma La Sapienza, Dipartimento di Matematica Guido Castelnuovo, Italy, January 18, 2018.
D.R.M. Renger, Gradient and GENERIC structures from flux large deviations, POLYPHYS Seminar, Eidgenössische Technische Hochschule Zürich, Department of Materials, Zürich, Switzerland, March 28, 2018.
D.R.M. Renger, Gradient and GENERIC structures in the space of fluxes, Analysis of Evolutionary and Complex Systems (ALEX2018), September 24 - 28, 2018, WIAS Berlin, September 27, 2018.
D.R.M. Renger, Gradient and Generic structures in the space of fluxes, Analysis of Evolutionary and Complex Systems (ALEX2018), September 24 - 28, 2018, WIAS Berlin, September 27, 2018.
D.R.M. Renger, Large deviations for reaction fluxes, Workshop on Transformations and Phase Transitions, January 29 - 31, 2018, Ruhr-Universität Bochum, Fakultät für Mathematik, January 29, 2018.
D.R.M. Renger, Large deviations for reaction fluxes, Università degli Studi dell'Aquila, Dipartimento di Ingegneria e Scienze dell'Informazione e Matematica, L'Aquila, Italy, January 10, 2018.
W. van Zuijlen, A Hamilton--Jacobi point of view on mean-field Gibbs-non-Gibbs transitions, Workshop on Transformations and Phase Transitions, January 29 - 31, 2018, Ruhr-Universität Bochum, Fakultät für Mathematik, Bochum, January 30, 2018.
L. Andreis, A large-deviations approach to the multiplicative coagulation process, Probability Seminar, Università degli Studi di Padova, Dipartimento di Matematica ``Tullio Levi--Civita'', Italy, October 12, 2018.
L. Andreis, A large-deviations approach to the multiplicative coagulation process, Seminar ''Theory of Complex Systems and Neurophysics --- Theory of Statistical Physics and Nonlinear Dynamics``, Humboldt-Universität zu Berlin, Institut für Physik, October 30, 2018.
CH. Bayer, Short-time near-the-money skew in rough fractional volatility models, 9-th International Workshop on Applied Probability, June 18 - 21, 2018, Eörvös Loránd University (ELU), Budapest, Hungary, June 19, 2018.
A. Mielke, Construction of effective gradient systems via EDP convergence, Workshop on Mathematical Aspects of Non-Equilibrium Thermodynamics, March 5 - 7, 2018, Rheinisch-Westfälische Technische Hochschule Aachen, March 6, 2018.
D.R.M. Renger, Gradient flows and GENERIC in flux space, Workshop ``Variational Methods for Evolution'', November 12 - 18, 2017, Mathematisches Forschungsinstitut Oberwolfach, November 16, 2017.
D.R.M. Renger, Large deviations and gradient flows, Spring School 2017: From Particle Dynamics to Gradient Flows, February 27 - March 3, 2017, Technische Universität Kaiserslautern, Fachbereich Mathematik, March 1, 2017.
A. Mielke, Perspectives for gradient flows, GAMM-Workshop on Analysis of Partial Differential Equations, September 27 - 29, 2017, Eindhoven University of Technology, Mathematics and Computer Science Department, Netherlands, September 28, 2017.
M. Heida, Large deviation principle for a stochastic Allen--Cahn equation, 9th European Conference on Elliptic and Parabolic Problems, May 23 - 27, 2016, University of Zurich, Institute of Mathematics, Gaeta, Italy, May 25, 2016.
M. Maurelli, Enhanced Sanov theorem and large deviations for interacting particles, Workshop ``Rough Paths, Regularity Structures and Related Topics'', May 1 - 7, 2016, Mathematisches Forschungsinstitut Oberwolfach, May 5, 2016.
R.I.A. Patterson, Pathwise LDPs for chemical reaction networks, 12th German Probability and Statistics Days 2016 --- Bochumer Stochastik-Tage, February 29 - March 4, 2016, Ruhr-Universität Bochum, Fakultät für Mathematik, March 4, 2016.
D.R.M. Renger, Large deviations for reacting particle systems: The empirical and ensemble processes, Workshop ``Interplay of Analysis and Probability in Applied Mathematics'', July 26 - August 1, 2015, Mathematisches Forschungsinstitut Oberwolfach, Oberwolfach, July 30, 2015.
M. Maurelli, A large deviation principle for enhanced Brownian empirical measure, 4th Annual ERC Berlin-Oxford Young Researchers Meeting on Applied Stochastic Analysis, December 7 - 9, 2015, WIAS Berlin, December 8, 2015.
M. Maurelli, A large deviation principle for interacting particle SDEs via rough paths, 38th Conference on Stochastic Processes and their Applications, July 13 - 17, 2015, University of Oxford, Oxford-Man Institute of Quantitative Finance, UK, July 14, 2015.
M. Maurelli, Enhanced Sanov theorem for Brownian rough paths and an application to interacting particles, Seminar Stochastic Analysis, Imperial College London, UK, October 20, 2015.
D.R.M. Renger, From large deviations to Wasserstein gradient flows in multiple dimensions, Workshop on Gradient Flows, Large Deviations and Applications, November 22 - 29, 2015, EURANDOM, Mathematics and Computer Science Department, Eindhoven, Netherlands, November 23, 2015.
D.R.M. Renger, The empirical process of reacting particles: Large deviations and thermodynamic principles, Minisymposium ``Real World Phenomena Explained by Microscopic Particle Models'' of the 8th International Congress on Industrial and Applied Mathematics (ICIAM 2015), August 8 - 22, 2015, International Council for Industrial and Applied Mathematics, Beijing, China, August 10, 2015.
D.R.M. Renger, The inverse problem: From gradient flows to large deviations, Workshop ``Analytic Approaches to Scaling Limits for Random System'', January 26 - 30, 2015, Universität Bonn, Hausdorff Research Institute for Mathematics, January 26, 2015.
A. Mielke, Chemical Master Equation: Coarse graining via gradient structures, Kolloquium des SFB 1114 ``Scaling Cascades in Complex Systems'', Freie Universität Berlin, Fachbereich Mathematik, Berlin, June 4, 2015.
A. Mielke, Evolutionary $Gamma$-convergence for generalized gradient systems, Workshop ``Gradient Flows'', June 22 - 23, 2015, Université Pierre et Marie Curie, Laboratoire Jacques-Louis Lions, Paris, France, June 22, 2015.
A. Mielke, The Chemical Master Equation as a discretization of the Fokker--Planck and Liouville equation for chemical reactions, Colloquium of Collaborative Research Center/Transregio ``Discretization in Geometry and Dynamics'', Technische Universität Berlin, Institut für Mathematik, Berlin, February 10, 2015.
A. Mielke, The Chemical Master Equation as entropic gradient flow, Conference ``New Trends in Optimal Transport'', March 2 - 6, 2015, Universität Bonn, Institut für Angewandte Mathematik, March 2, 2015.
D.R.M. Renger, Connecting particle systems to entropy-driven gradient flows, Conference ``Stochastic Processes and High Dimensional Probability Distributions'', June 16 - 20, 2014, Euler International Mathematical Institute, Saint-Petersburg, Russian Federation, June 20, 2014.
D.R.M. Renger, Connecting particle systems to entropy-driven gradient flows, Conference on Nonlinearity, Transport, Physics, and Patterns, October 6 - 10, 2014, Fields Institute for Research in Mathematical Sciences, Toronto, Canada, October 9, 2014.
D.R.M. Renger, Connecting particle systems to entropy-driven gradient flows, Oberseminar ``Stochastische und Geometrische Analysis'', Universität Bonn, Institut für Angewandte Mathematik, May 28, 2014.
TH. Dickhaus, H. Finner, Asymptotic density crossing points of self-normalized sums and normal, 3rd Annual International Conference on Computational Mathematics, Computational Geometry & Statistics (CMCGS 2014), February 3 - 4, 2014, Singapore, February 3, 2014.
T. Wolff, Annealed asymptotics for occupation time measures of a random walk among random conductances, ``Young European Probabilists 2013 (YEP X)'' and ``School on Random Polymers'', January 8 - 12, 2013, EURANDOM, Eindhoven, Netherlands, January 10, 2013.
W. König, Eigenvalue order statistics and mass concentration in the parabolic Anderson model, SFB/TR12 Workshop, November 4 - 8, 2012, Universität zu Köln, SFB TR12 ``Symmetries and Universality in Mesoscopic Systems'', Langeoog, November 7, 2012.
W. König, Large deviations for the cluster size distributions in a classical interacting many-particle system with Lennard--Jones potential, Mark Kac Seminar, Eindhoven University of Technology, Netherlands, November 9, 2012.
M. Becker , Random walks and self-intersections, Evolving Complex Networks (ECONS) Phd-Student Meeting, WIAS, August 24, 2010.
S. Jansen, M. Aizenman, P. Jung, Symmetry breaking in quasi 1D Coulomb systems, Combinatorics and Analysis in Spatial Probability --- ESF Mathematics Conference in Partnership with EMS and ERCOM, Eindhoven, Netherlands, December 12 - 18, 2010.
B. Metzger, The parabolic Anderson model: The asymptotics of the statistical moments and Lifshitz tails revisited, EURANDOM, Eindhoven, Netherlands, December 1, 2010.
W. König, Die Universalitätsklassen im parabolischen Anderson-Modell, Mathematisches Kolloquium, Technische Universität Darmstadt, Fachbereich Mathematik, July 7, 2010.
W. König, Phase transitions for dilute particle systems with Lennard--Jones potential, University of Bath, Department of Mathematical Sciences, UK, April 14, 2010.
W. König, The parabolic Anderson model, XIV Escola Brasileira de Probabilidade, August 2 - 7, 2010, Instituto Nacional de Matemática Pura e Aplicada (IMPA), Rio de Janeiro, Brazil.
External Preprints
CH. Bayer, P. Friz, P. Gassiat, J. Martin, B. Stemper , A regularity structure for rough volatility, Preprint no. arXiv:1710.07481, Cornell University Library, arXiv.org, 2017.
A new paradigm recently emerged in financial modelling: rough (stochastic) volatility, first observed by Gatheral et al. in high-frequency data, subsequently derived within market microstructure models, also turned out to capture parsimoniously key stylized facts of the entire implied volatility surface, including extreme skews that were thought to be outside the scope of stochastic volatility. On the mathematical side, Markovianity and, partially, semi-martingality are lost. In this paper we show that Hairer's regularity structures, a major extension of rough path theory, which caused a revolution in the field of stochastic partial differential equations, also provides a new and powerful tool to analyze rough volatility models.
J.-D. Deuschel, P. Friz, M. Maurelli, M. Slowik, The enhanced Sanov theorem and propagation of chaos, Preprint no. arxiv:1602.08043, Cornell University Library, arXiv.org, 2016.


text:
Four new roles for PR pros
PR pros need a lot of new tools for their jobs. One thing they don't need? The letters 'PR.' So says industry pro Gini Dietrich, who spoke at Ragan's PR and Social Media Summit.
To kick off her remarks to an audience of PR and communications pros at Ragan Communications' PR and Social Media Summit in Chicago, Arment Dietrich CEO Gini Dietrich had a question:
"When your parents ask you what you do for a living, what do you say?"
She got a ton of answers back, including getting into the newspaper, building relationships, creating content, reputation management, crisis communications, and even travel.
That alone proved her point that PR pros wear a lot more hats now than they did just a few years ago, when their job was to work with journalists who often stayed at the same media outlets for years.
What PR professionals are not, Dietrich said, is what so many people like to call them: "spin doctors." That's why she dropped the abbreviation "PR" out of her company description and "the conversation completely changed."
"Technology has completely changed the way we do our jobs," she said. "We have to learn new skills."
Dietrich expounded on four of those skills:
1. Hyper-targeted media and blogger relations
"Bloggers and PR professionals do not get along," Dietrich said.
And why not? Blame it on mass emails. Those are simply spam, she said.
"We're all busy people," Dietrich said, but taking the time to send a few targeted, researched pitches works 100 percent of the time. It's better to email 10 bloggers and get 10 posts than email 1,000 and get none, she said.
It's all about understanding a blogger's goals, she added. Every blog has an "about" page. PR pros have to read those, then read the blog to make sure what you're pitching fits the audience. It's extra work, but it's worth it.
PR pros also should know they don't control the story, just as when they pitch to a newspaper. The writer owns it. However, lots of blogs accept guest posts, she noted.
RELATED: 6 steps to pitch journalists (that will always work)
2. Content marketing and search optimization
Do a Google search for "managing an online crisis," and the top three results point to an article Dietrich wrote on the topic. Dietrich made that happen in a few ways. For one, she included the key phrase "managing an online crisis" in the text three or four times.
More important, she posted it to Google+. That's the place to boost your search results, she said.
"Make sure you use your key phrase in your post or your description on Google+," Dietrich said. You can even Google your key phrase a few hours after the article is posted to see how it's working, she added.
Beyond that, you can use other content options—white papers, e-books, webinars, blogs, etc.—to attain emails that you can share with your sales department, tying what you do directly in with sales. E-books are a good way to tell if clients are serious, too. Send them a link to an e-book and monitor their reading. If they're not reading, or they stop when they get to a section about pricing, they're probably not interested.
3. Issues and crisis management
When Applebee's fired a waitress who had tweeted a picture of a non-tipping customer's receipt, the company was following its policy of not revealing customer names publicly. Instead of saying that frankly, however, the person who ran the company's Facebook account copied-and-pasted a statement to reply to complaints.
RELATED: 6 steps Applebee's should have taken to manage its PR crisis
"We have to be thinking about these kinds of things," Dietrich said. "This is going to be a bigger, bigger part of your job as digital media continues to grow."
That means having a crisis plan in place. It means counseling executives to go public on an issue before it becomes a crisis. You have to watch for red flags while distinguishing a troll from someone with a genuine gripe. If you can, become empowered to speak on behalf of the company via social media.
Most of all, she advised, let cooler heads prevail.
4. Metrics
Tons of executives haven't bought into social media. When Dietrich asked the audience whether their company executives were hesitant about it, most of the hands in the room went up. She then described a client that wants to be one of the "great companies of all time" but doesn't want to be on Facebook.
That's why you need metrics. Not just impression counts, either, which Dietrich said mean nothing. You have to track your content back to sales. "We become an investment instead of an expense," she said.
Dietrich offered this formula: Team salaries + benefits x desired ROI ratio = goal.
If you can show your boss you're earning your keep and making a measurable ROI, you can become that investment, she said. How? Include product links in your blog posts. Try using white papers.
Also, be creative. PR pros can't keep thinking of themselves as non-creative types, Dietrich said.
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