Contracts are negotiated at futures exchanges, which act as a marketplace between buyers and sellers. Price fixing requires a conspiracy between sellers or buyers. The black market middleman would make a profit by creating connections between sellers and buyers. The company maintains a database to match up prospective sellers and buyers of the cars. Wish is an American online e-commerce platform that facilitates transactions between sellers and buyers. Online marketplaces are information technology companies that act as intermediaries by connecting sellers and consumers. It is merely a platform to bring sellers and purchasers together online. Websites like eBay provide a potential audience of millions to sellers. Monopoly power held by sellers does not benefit consumers. Customers have complained about lack of communication from sellers and quality. The retail trade was largely serviced by itinerant street sellers or costermongers. The US equity market correlation became untenable to short sellers. Amazon also employs the use of drop shippers or meta sellers. AutoGuide connected online newspaper users with local dealership or private party car sellers. A single action may lead to revenue being paid to multiple ad space sellers.