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Mechanism robustness in multilateral bargaining

Research output: Contribution to journalJournal articlepeer-review

Published
<mark>Journal publication date</mark>03/1996
<mark>Journal</mark>Theory and Decision
Issue number2
Volume40
Number of pages17
Pages (from-to)131-147
Publication StatusPublished
<mark>Original language</mark>English

Abstract

This paper discusses the relationship between coalitional stability and the robustness of bargaining outcomes to the bargaining procedure. We consider a class of bargaining procedures described by extensive form games, where payoff opportunities are given by a characteristic function (cooperative) game. The extensive form games differ on the probability distribution assigned to chance moves which determine the order in which players take actions. One way to define mechanism robustness is in terms of the property of 'no first mover advantage'. An equilibrium is mechanism robust if for each member the expected payoff before and after being called to propose is the same. Alternatively one can define mechanism robustness as a property of equilibrium outcomes. An outcome is said to be mechanism robust if it is supported by some equilibrium in all the extensive form games (mechanisms) within our class. We show that both definitions of mechanism robustness provide an interesting characterization of the core of the underlying cooperative game. © 1996 Kluwer Academic Publishers.