Lobbyists are pretty powerful and Americans like the rewards, so I don't think it will change any time soon. In any case I would assume that merchant fees foll

Lobbyists are pretty powerful and Americans like the rewards, so I don't think it will change any time soon. In any case I would assume that merchant fees follow the same pattern as tax incidence. Just like taxes on goods, they are passed on to the consumer or merchant in relation to the supply and demand of the product: https://en.wikipedia.org/wiki/Tax_incidence https://en.wikipedia.org/wiki/Tax_incidence