Why economics is not a science of behaviour

Marek Hudik

Journal of Economic Methodology, 2011, vol. 18, issue 2, 147-162

Abstract: The paper criticises psychologism, i.e. the idea that economics is a science of behaviour or that it must be rooted in such a science. The argument is based on Hayek and Popper's thesis that economics studies spontaneous order. First, it is argued that if economics is to retain its traditional distance from psychology, it has to abandon the notion that it is concerned with behaviour. Then it is shown that there is no simple one-way causation from the psychological to the social and that the study of spontaneous order must be non-psychological. Further, an attempt is made to clarify some misunderstandings about the concept of spontaneous order and the differences between psychologism and methodological individualism. Finally, it is suggested that the difference between the psychological and the social can be described conveniently in Popperian terms as the difference between the 'World 2' and 'World 3' phenomena.

Keywords: spontaneous order; psychologism; methodological individualism; World 3; F.A. Hayek; Karl Popper (search for similar items in EconPapers)
Date: 2011
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Citations: View citations in EconPapers (3)

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DOI: 10.1080/1350178X.2011.575949

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