By offering or choosing a contract the informed agent might reveal information to the principal which could be used for immediate renegotiation. This is discussed in an axiomatic approach. We show that if, given the revealed information, there exists a contract which is preferred by everyone,...

This chapter surveys a sizable and growing literature on coalition formation. We refer to theories in which one or more groups of agents (“coalitionsâ€) deliberately get together to jointly determine within-group actions, while interacting noncooperatively across groups. The chapter...

AbstractThe following sections are included:An Overview of the ModelFCS GamesConsiderable Solutions in FCS GamesThe CoreDetermination of the Feasible Condition StructuresA Coalition for Production and SaleA Production-and-Sale Coalition in a Steady StateOptimality within the CoalitionBargaining...

AbstractThe following sections are included:PreliminariaTU Games in Partition Function FormSymmetrySuperadditivityEfficiencySuccessor FunctionNTU Games in Partition Function FormSuperior GamesExample: A Common-Property ResourceExample: A Cartel with Differentiated ProductsChapter Summary

AbstractThe following sections are included:Nontransferable Utility GamesZeuthen's SolutionNash Bargaining with Equal Bargaining PowerVariable-Threat BargainingNash Bargaining and Nash EquilibriumUnequal Bargaining PowerChapter Summary

AbstractThe following sections are included:A Brief Digression on the Noncooperative Stage of a Biform GameBargaining Power Biform GamesBiform Games and ExternalitiesSome Examples from the Recent LiteratureBrandenburger and Stuart (2007)Chatain and Zemsky (2007)Biform Games and Job MatchingA...

AbstractThe following sections are included:ExcessThe NucleolusUniquenessCharacterizing the CoreThe Intermediate Case and Proper GamesExtended CoreSuperior GamesThe Example of a Common-Property ResourceThe Example of a CartelSummary and Conclusions

AbstractThe following sections are included:Bargaining Power GamesExamplesThe Relation of this Model to Some PredecessorsMatching Games and Bargaining PowerBargaining Power NTU Games in Partition Function FormReflectionsSummary

AbstractThe following sections are included:Shapley's “Algorithm”Maskin's ProposalAn Extended Shapley AlgorithmSome ExamplesAn Illustrative ExampleA Game with Strong Positive ExternalitiesA Game with Mild Positive ExternalitiesA Game that is not SuperadditiveThe Enigma GameAn Exceptional...

AbstractThe following sections are included:A Primer for Cooperative Games in Extensive FormFurther ExamplesAn Example with Demographic ChangeA More General DiscussionChapter Summary and Conclusions