At present, the field of behavioral economics is a fairly loose collection of observations about human “irrationality.” It shows that we procrastinate against our own wishes; we make decisions based on irrelevant factors; we think about probability in mistaken ways, etc. What the field does not do, however, is explain why these quirks exist, clearly specify in what conditions they will arise, or predict how strongly they will be manifested when they do arise. These are important conceptual issues, which highlight the need for a firm theoretical foundation for the field. My interest is in using evolutionary theory to provide such a foundation.
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