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Aspects Reffering to Utility and Risk of Investments Decision Systems


  • Despa Radu,

    () (Romanian-American University, Bucharest)

  • Folcut Ovidiu

    () (Romanian-American University, Bucharest)

  • Coculescu Cristina

    () (Romanian-American University, Bucharest)


The explanation of investment behaviour in the light of expected utility it meant an important step in the substantiation of the theory regarding investment portofolio. It was demonstrated that the linear form of utility function excludes certain decisive decisions (Allais’s paradox), so that in a short period of time from Neumann- Morgenstein’s hypotheses specialists’ attention directed to finding a utility function that would explain as well as possible the relationship with the risk in investment behaviour. The most important contributions on this issue are more recent, from 1980: The hypotheses of „expected diminished utility” of MacCrimmon (1979) and Machina(1982), the hypotheses of „ non-linear expected utility” of John Quiggin (1993), the hypotheses of „ conditional expected utility”, sustained by Chew, Karni si Safra in 1987, the hypotheses of „non-additivity expected utility” of Fishburn (1988) or the hypotheses of „expected utility based on investment behaviour”, brought by Machina (1988).

Suggested Citation

  • Despa Radu, & Folcut Ovidiu & Coculescu Cristina, 2010. "Aspects Reffering to Utility and Risk of Investments Decision Systems," Ovidius University Annals, Economic Sciences Series, Ovidius University of Constantza, Faculty of Economic Sciences, vol. 0(1), pages 618-622, May.
  • Handle: RePEc:ovi:oviste:v:10:y:2010:i:1:p:618-622

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    investment behaviour; expected utility; risk; investors’ preference axiom;

    JEL classification:

    • D03 - Microeconomics - - General - - - Behavioral Microeconomics: Underlying Principles
    • D81 - Microeconomics - - Information, Knowledge, and Uncertainty - - - Criteria for Decision-Making under Risk and Uncertainty
    • D92 - Microeconomics - - Micro-Based Behavioral Economics - - - Intertemporal Firm Choice, Investment, Capacity, and Financing
    • G11 - Financial Economics - - General Financial Markets - - - Portfolio Choice; Investment Decisions


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