Well, I have a follow-up question.
I think you would accept the point that all consumers.... If the interchange costs and other costs of debit or credit cards go up to some extent, the increased prices will be passed on to all consumers, or the retailer will have to absorb the additional cost. But for those purchasing, if you have a premium card, you'll have an offsetting benefit. If you pay with cash or an ordinary card, you will have none.
Does MasterCard have any objection if a merchant reflects those costs to customers so that someone paying with cash or an ordinary credit or debit card will pay a lower price than someone paying with the premium card? Is that allowed in the system or is that not allowed?