That's not far off from what the merchant is losing for credit card customers, so their options are:
1. Charge the same for credit cards as cash, and make cash paying customers effectively pay more, thus applying a regressive tax to the poor (who are less likely to have credit cards)
2. Charge more for the credit card paying customers, and they can avoid this extra payment by paying with cash.
2 is obviously better, and I would rather go to stores that take 2 than ones which choose to charge everyone more, effectively to the detriment of those worse off.
That's not far off from what the merchant is losing for credit card customers, so their options are:
1. Charge the same for credit cards as cash, and make cash paying customers effectively pay more, thus applying a regressive tax to the poor (who are less likely to have credit cards)
2. Charge more for the credit card paying customers, and they can avoid this extra payment by paying with cash.
2 is obviously better, and I would rather go to stores that take 2 than ones which choose to charge everyone more, effectively to the detriment of those worse off.