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Information & efficience : 40 ans de recherche


  • Christophe Boya


This article tries to examine the efficiency market hypothesis. Therefore, the efficiency is studied through endogenous and exogenous information. The goal of this paper is to describe the literature review the most exhaustive of effi iency studies. We show that distinct conclusions can be emphasized following the type of analyzed information. Consequently, the endogenous information is not of quality to question the efficiency, rather than the exogenous one shows significant results. The exogenous information allows forecasting future stock returns, and earning profit. It is getting a decision making tool. JEL Classification: G00, G14
(This abstract was borrowed from another version of this item.)

Suggested Citation

  • Christophe Boya, 2012. "Information & efficience : 40 ans de recherche," Innovations, De Boeck Université, vol. 0(3), pages 191-224.
  • Handle: RePEc:cai:inndbu:inno_039_0191

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    Cited by:

    1. Svitlana Galeshchuk, 2017. "Technological bias at the exchange rate market," Intelligent Systems in Accounting, Finance and Management, John Wiley & Sons, Ltd., vol. 24(2-3), pages 80-86, April.
    2. Boya, Christophe M., 2019. "From efficient markets to adaptive markets: Evidence from the French stock exchange," Research in International Business and Finance, Elsevier, vol. 49(C), pages 156-165.

    More about this item


    efficiency market; endogenous information; exogenous information;

    JEL classification:

    • G00 - Financial Economics - - General - - - General
    • G14 - Financial Economics - - General Financial Markets - - - Information and Market Efficiency; Event Studies; Insider Trading


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