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La nozione di razionalità in economia


  • Montesano Aldo


The notion of rationality is examined with respect to its use in economics. Three kinds of rationality are distinguished. First, economics is qualified as rational when its nomological-deductive content is taken into account. Second, agents and actions are qualified as rational if a theory of choice is introduced related to a system of binary relations of preference. Third, a preference system on a set of lotteries, acts or strategies is qualified as rational if it is consistent with a theory that connects choice to its possible consequences. Moreover, in all these matters a double meaning of rationality applies, either as logical consistency or as conformity to an axiomatic model.

Suggested Citation

  • Montesano Aldo, 2005. "La nozione di razionalità in economia," Rivista italiana degli economisti, Società editrice il Mulino, issue 1, pages 23-42.
  • Handle: RePEc:mul:jqat1f:doi:10.1427/20737:y:2005:i:1:p:23-42

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    References listed on IDEAS

    1. Francesca Lotti & Enrico Santarelli, 2004. "Industry Dynamics and the Distribution of Firm Sizes: A Nonparametric Approach," Southern Economic Journal, Southern Economic Association, vol. 70(3), pages 443-466, January.
    2. Francesca Lotti & Enrico Santarelli, 2001. "Industry Dynamics and the Distribution of Firm Sizes: A Non-Parametric Approach," LEM Papers Series 2001/14, Laboratory of Economics and Management (LEM), Sant'Anna School of Advanced Studies, Pisa, Italy.
    3. Pietro Garibaldi & Lia Pacelli & Andrea Borgarello, 2004. "Employment Protection Legislation and the Size of Firms," Giornale degli Economisti, GDE (Giornale degli Economisti e Annali di Economia), Bocconi University, vol. 63(1), pages 33-68, April.
    4. Luís M B Cabral & José Mata, 2003. "On the Evolution of the Firm Size Distribution: Facts and Theory," American Economic Review, American Economic Association, vol. 93(4), pages 1075-1090, September.
    5. F. Lotti & E. Santarelli & M. Vivarelli, 1999. "Does Gibrat’s Law Hold in the Case of Young, Small Firms?," Working Papers 361, Dipartimento Scienze Economiche, Universita' di Bologna.
    6. Gianni Principe, 2003. "Soglie Dimensionali e Regolazione del Rapporto di Lavoro in Italia," ISAE Working Papers 36, ISTAT - Italian National Institute of Statistics - (Rome, ITALY).
    7. Jinyong Hahn & Petra Todd & Wilbert Van der Klaauw, 1999. "Evaluating the Effect of an Antidiscrimination Law Using a Regression-Discontinuity Design," NBER Working Papers 7131, National Bureau of Economic Research, Inc.
    8. Geroski, P. A., 1995. "What do we know about entry?," International Journal of Industrial Organization, Elsevier, vol. 13(4), pages 421-440, December.
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    Cited by:

    1. Schilirò, Daniele & Graziano, Mario, 2011. "Scelte e razionalità nei modelli economici: un'analisi multidisciplinare
      [Choices and rationality in economic models: a multidisciplinary analysis]
      ," MPRA Paper 31910, University Library of Munich, Germany.
    2. Schilirò, Daniele, 2011. "Economics and psychology.Perfect rationality versus bounded rationality," MPRA Paper 34292, University Library of Munich, Germany.

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