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In this essay, we argue that rational choice (RC) provides an inadequate foundation for a theory of economic action. After defining RC sufficiently broadly to encompass much of the bounded rationality literature as well as neoclassical optimization theory, we present three principal arguments against RC. The first is cognitive: economic actors are experts at what they do, and the cognitive processes that underlie experitise are not consistent with RC, descriptively, prescriptively or positively. The second argument begins with the observation that economic action takes place in and through relationships between agents, and these relationships may generate actions that connot be localized to individual agents. We argue that these generative relationships are essential to understanding such fundamental economic phenomena as innovation, and the actions that result from them are not amenable to analysis …