Step-by-Step Explanation of Hendricks and Kovenock (1989)'s Model of Social Learning

Marc Santugini ()
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Marc Santugini: IEA, HEC Montréal, http://www.hec.ca/iea/

No 09-04, Cahiers de recherche from HEC Montréal, Institut d'économie appliquée

Abstract: We explain the Hendricks and Kovenock (1989)'s framework by studying the behavior of two strategic firms under an informational externality. The informational externality arises when each firm of a social network is endowed with private information regarding the profitability of the investment. In such situations, the past decisions of the firms are informative and, thus, are used as partially revealing signals of private information. Asymmetric information and the observability of actions render the firm's problem dynamic and strategic because the investment decision of one firm affects the other firms' future payoffs through the learning process. We describe the model and we show that there exists a unique symmetric Bayesian Nash equilibrium. The informational externality increases the likelihood for a firm to refrain from investing immediately in order to make a more informed decision in the future.

Pages: 16 pages
Date: 2009-04, Revised 2012-11
New Economics Papers: this item is included in nep-cta, nep-gth and nep-ict
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