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Les fondements théoriques d'une différenciation individuelle des taux d'actualisation

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  • Daniel Arnould
  • Mireille Jaeger

Abstract

[eng] In this paper, we prove that it is relevant on a theoretical basis, to use individual discount rates in order to better understand saving behaviors, and to measure wealth inequalities, rather than the usual pratice of retaining a unique rate. The theoretical scheme is fisherian, with extensions to uncertainty and imperfect markets. The analysis leads to distinguish the pure positive time preference and the rates reflecting the specific horizons. [fre] L'objet de cet article est de montrer qu'il est théoriquement justifié de recourir à des taux d'actualisation individuels pour mieux appréhender le comportement d'épargne des agents, et pour mesurer les inégalités de patrimoines, ce contrairement à la pratique habituelle qui consiste à retenir un taux unique. Le cadre théorique de l'analyse est fishérien, avec extension aux situations d'incertitude et d'imperfections des marchés. L'analyse conduit à distinguer le taux de préférence pure pour le présent, et les taux reflétant l'horizon spécifique des agents, la préférence pour le présent.

Suggested Citation

  • Daniel Arnould & Mireille Jaeger, 1991. "Les fondements théoriques d'une différenciation individuelle des taux d'actualisation," Revue Française d'Économie, Programme National Persée, vol. 6(2), pages 3-42.
  • Handle: RePEc:prs:rfreco:rfeco_0769-0479_1991_num_6_2_1280
    Note: DOI:10.3406/rfeco.1991.1280
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