Dr DUNCAN WEBB (Labour—Christchurch Central): Thank you, Madam Speaker. Look, this is a good—very excellent—piece of legislation, because merchant fees and surcharges are a classic economic problem where there is no actual distinction between the product of one bank and another. So there is actually an incentive to drive the cost of the service up across the board and no incentive to lower them. It's what is known as "sticky pricing". It happens with petrol as well, because we don't mind where we go to. So it encourages what looks a bit like cartel behaviour, but you don't need to communicate to actually achieve what is, essentially, a kind of price fixing, because everything is so blindingly obvious.