Our third hypothesis is that if abank has a larger card market share it will be able to extract rentsby charging higher fees.While there is a large literature on the impact of market shareand bank pricing in general, the specific literature on bank feesand market share is limited. Hannan (2006) provides evidence thatthere is a significant positive relationship between market shareand different bank fees related to deposit accounts (e.g. stop payment fees, “not sufficient funds” fees, deposit overdraft fees, andATM fees8). This paper is the first to examine the relationshipbetween market share and fees in the context of credit cards.