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Theoretical Economics
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Theoretical Economics
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Subgame‐perfect equilibrium in games with almost perfect information: Dispensing with public randomization

Subgame-perfect equilibrium in games with almost perfect information: dispensing with public randomization
Authors: Barelli, Paulo; Duggan, John;

Subgame‐perfect equilibrium in games with almost perfect information: Dispensing with public randomization

Abstract

Harris, Reny, and Robson (1995) added a public randomization device to dynamic games with almost perfect information to ensure existence of subgame perfect equilibria (SPE). We show that when Nature's moves are atomless in the original game, public randomization does not enlarge the set of SPE payoffs: any SPE obtained using public randomization can be “decorrelated” to produce a payoff‐equivalent SPE of the original game. As a corollary, we provide an alternative route to a result of He and Sun (2020) on existence of SPE without public randomization, which in turn yields equilibrium existence for stochastic games with weakly continuous state transitions.

Related Organizations
Keywords

C72, Stochastic games, stochastic differential games, C73, ddc:330, subgame-perfect equilibrium, public randomization, existence, Existence, stochastic games, Equilibrium refinements, infinite-action games

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
0
Average
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