Bilateral Information Sharing in Oligopoly
AbstractWe study the problem of information sharing in oligopoly, when sharing decisions are taken before the realization of private signals. Using the general model developed by Raith (1996), we show that if firms are allowed to make bilateral exclusive sharing agreements, then some degree of information sharing is consistent with equilibrium, and is a constant feature of equilibrium when the number of firms is not too small. Our result is to be contrasted with the traditional conclusion that no information is shared in common values situations with strategic substitutes - such as Cournot competition with demand shocks - when firms can only make industry-wide sharing contracts (e.g., a trade association).
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Bibliographic InfoPaper provided by Faculty of Economics and Statistics, University of Innsbruck in its series Working Papers with number 2007-15.
Date of creation: Jul 2007
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Information sharing; oligopoly; networks; Bayesian equilibrium;
Other versions of this item:
- D43 - Microeconomics - - Market Structure and Pricing - - - Oligopoly and Other Forms of Market Imperfection
- D82 - Microeconomics - - Information, Knowledge, and Uncertainty - - - Asymmetric and Private Information; Mechanism Design
- D85 - Microeconomics - - Information, Knowledge, and Uncertainty - - - Network Formation
- L13 - Industrial Organization - - Market Structure, Firm Strategy, and Market Performance - - - Oligopoly and Other Imperfect Markets
This paper has been announced in the following NEP Reports:
- NEP-ALL-2007-08-08 (All new papers)
- NEP-BEC-2007-08-08 (Business Economics)
- NEP-COM-2007-08-08 (Industrial Competition)
- NEP-MIC-2007-08-08 (Microeconomics)
- NEP-NET-2007-08-08 (Network Economics)
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