Economic Behavior—Evolutionary Versus Behavioral Perspectives

Behavioral economics focuses mainly on how limitations of the human cognitive apparatus, risk attitudes, and human sociality affect decision making. The former two lead to deviations from rationality standards, the latter to deviations from rational self-interest. Some of these research interests are also shared by evolutionary psychology which, however, explains the observed deviations by features of the human genetic endowment conjectured to have evolved under fierce selection pressure in early human phylogeny. Important as the decision-making theoretical perspective of the two disciplines is, it will be claimed to be too narrow to fully account for what an evolutionary approach has to say about economic behavior. This is particularly true regarding the questions of what choices are made and what causes them, i.e., the motivational aspects of behavior. In the language of economics this points to the agents’ preferences. This article discusses how preferences relate to the human genetic endowment, how they can change over time, and what conclusions have to be drawn from extending the analysis to the motivational side. © 2012, Konrad Lorenz Institute for Evolution and Cognitive Research.