DAMIEN SMITH (ACT): Thank you, Madam Speaker. I listened with interest to the Minister's response in terms of how this figure was ascertained, and it was explained that it was the difference between wage increases and inflation, and we just settled on a figure. When I asked Treasury today how they defined lower and middle income wage earners, they did not have an answer for me. It's not in the appendix of any of the documents I've read today. So I ask the question again: was any modelling done to say this would be 250, 350, 450? And is there any sensitivity analysis about how you've linked this to the cost of living scenario that people are facing out there?