Many models in the economics literature deal with strategic situations with privately informed agents. In those models the information structure is assumed to be exogenous and common knowledge. We consider whether such models, and the results they produce, are robust with respect the endogenization of the information structure. The results depend on whether information acquisition is secret or private, and on whether the strategic situation involves simultaneous or sequential moves. In particular we find that only when information is secretly acquired and moves are simultaneous, the results are fully robust. When information is acquired secretly but moves are sequential additional equilibria may appear. Instead, private information acquisition may make the equilibrium set smaller.
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Paper provided by Department of Economics and Business, Universitat Pompeu Fabra in its series Economics Working Papers with number
386.
Find related papers by JEL classification: C72 - Mathematical and Quantitative Methods - - Game Theory and Bargaining Theory - - - Noncooperative Games D82 - Microeconomics - - Information, Knowledge, and Uncertainty - - - Asymmetric and Private Information D83 - Microeconomics - - Information, Knowledge, and Uncertainty - - - Search, Learning, and Information
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