Contrary to what news reports might suggest, the majority of politicians behave ethically and are never subject to investigations. Is this because of the elaborate system of rules Congress has constructed to regulate the conduct of its members as well as the fear of electoral reprisal? Drawing on economic literature on the behavior of firms, Glenn Parker answers no. He argues that members of Congress behave ethnically not because of the fear of punishment but because of their concern for their reputations. He draws parallels between politicians and businesses, since both stand to suffer...