[devman0]

In a properly working market, every consumer would pay their exact interchange fee and it would be printed on the receipt as a pass-through cost.

This would actively drive interchange fees lower when consumers have to choose to pay 3% on an Amex swipe vs 1.6% no frills MasterCard swipe, or .05% for a debit swipe.

The reasons there is no downward pressure today is because there is because there is no transparency, and no incentive for consumers to choose a lower cost card.