Rationality, learning and complexity: from the Homo economicus to the Homo sapiens

  • A. Vercelli
Part of the New Economic Windows book series (NEW)


Standard economics is based on methodological individualism but this does not imply that the individuals play a crucial role in its models. On the contrary, in such a theory the individual is deprived of authentic subjective characteristics and plays no sizeable role as genuine subject. The so called Homo economicus is just a signpost for given preferences that, however, are generally conceived as exogenous and invariant through time. Therefore, the genuine psychological features of the economic agent do not matter.


Decision Theory Rational Expectation Economic Agent Perfect Foresight Methodological Individualism 


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Copyright information

© Springer-Verlag Italia 2007

Authors and Affiliations

  • A. Vercelli
    • 1
  1. 1.Dipartimento di Politica EconomicaFinanza e SviluppoItaly

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