I think the system is working well, and we do want to allow as much competition as possible. We also have to realize that there are economies of scale, so within any platform you're not going to have a large number of players, but within that system we have within, say, the Visa or MasterCard system, competition between acquirers and competition between issuers. So there is that competition, and you want to encourage as much of it as possible.
You have competition between payment systems too, which has to be stressed. The payment system that used to be used 40 years ago was cash and cheques. There was a sort of natural monopoly; that has disappeared, and Visa and MasterCard have grown dramatically, not because of artificial rules they have, but because they have provided a better mousetrap. They provided a better product, so they took over from both cash and cheque, and now you have debit and credit cards.
The point you mention is that what Parliament has to worry about is that you always have groups coming to you seeking regulation. Adam Smith, back in 1776—and John McCallum would appreciate this—said you have to worry about merchants and workers coming to you asking for legislation in their favour, which, like tariffs or regulation, would benefit them. That is what you classically see here. Economists call it rent-seeking. You have a system that is working, but merchants and retailers see an opportunity to gain against the system and to improve even better.
I feel bad for the retailers because currently the economy is doing badly, and retailers, along with everybody else, are hurting. But the economy will pick up; they'll be better off. But you don't want to regulate a system and be left with rules that cause an inefficient means of payment. You'll be stuck with that forever, and the price you pay for giving gifts from one group to the other is an inefficient system that's costly to the economy, that reduces the per capita GDP for Canada, and that clearly can't help. Laws that result in inefficient systems are bad laws.