 While neoclassical economics and game theory traditionally conceived of institutions as exogenous constraints, research in political economy has generated new insights into the study of endogenous institutions. Specifically, endogenous norms have been shown to restrict the individual’s action set and drive preferences over action profiles (Bowles 1998; Ostrom 2000). As a result, the “standard” economic framework positing exogenous (and in particular self-centered) preferences has come under scrutiny. Widely documented deviations from the predictions of models with self-centered agents have informed alternative accounts of individual choice (for one of the first models of “interdependent preferences”, see Stigler &amp; Becker 1977).