Choice of conjectures in a bargaining game with incomplete information

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The axiomatic approach to bargaining may be viewed as an attempt to predict the outcome of a bargaining situation solely on the basis of the set of pairs of utilities that corresponds to the set of possible agreements and to the nonagreement point.
The strategic approach extends the description of a bargaining situation. The rules of bargaining are assumed to be exogenous, and the solution is a function not only of the possible agreements but also of the procedural rules and the parties' time preferences.
The aim of this chapter is to show that in the case of incomplete information about the time preferences of the parties, the bargaining solution depends on additional elements, namely, the players' methods of making inferences when they reach a node in the extensive form of the game that is off the equilibrium path.
The solution concept commonly used in the literature on sequential bargaining models with incomplete information is one of sequential equilibrium (see Kreps and Wilson (1982)). Essentially, this concept requires that the players' strategies remain best responses at every node of decision in the extensive form of the game, including nodes that are not expected to be reached. The test of whether a player's strategy is a best response depends on his updated estimation of the likelihood of the uncertain elements in the model. For nodes of the game tree that are reachable, it is plausible to assume that the players use the Bayesian formula.
Original languageEnglish
Title of host publication Game-theoretic models of bargaining
EditorsAlvin E. Roth
Place of PublicationCambridge
PublisherCambridge University Press
Number of pages16
ISBN (Electronic)9780511528309
ISBN (Print) 0521267579
StatePublished - 1985
Externally publishedYes

ULI Keywords

  • uli
  • Game theory
  • Negotiation -- Mathematical models
  • Games, Theory of
  • Theory of games


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