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Perfect equilibrium and lexicographic beliefs

  • Srihari Govindan


    (Department of Economics, University of Western Ontario, N6A 5C2 London, Ontario, CANADA)

  • Tilman Klumpp


    (Department of Economics, University of Western Ontario)

We extend the results of Blume, Brandenberger, and Dekel (1991b) to obtain a finite characterization of perfect equilibria in terms of lexicographic probability systems (LPSs). The LPSs we consider are defined over individual strategy sets and thus capture the property of independence among players' actions. Our definition of a product LPS over joint actions of the players is shown to be canonical, in the sense that any independent LPS on joint actions is essentially equivalent to a product LPS according to our definition.

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Article provided by Springer in its journal International Journal of Game Theory.

Volume (Year): 31 (2003)
Issue (Month): 2 ()
Pages: 229-243

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Handle: RePEc:spr:jogath:v:31:y:2003:i:2:p:229-243
Note: Received February 2002/Final version June 2002
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