Please use this identifier to cite or link to this item: http://hdl.handle.net/10419/119417
Authors: 
Safronov, Mikhail
Strulovici, Bruno
Year of Publication: 
2014
Series/Report no.: 
Discussion Paper, Center for Mathematical Studies in Economics and Management Science 1575
Abstract: 
Cooperative concepts of renegotiation in repeated games have typically assumed that Paretoranked equilibria could not coexist within the same renegotiation-proof set. With explicit renegotiation, however, a proposal to move to a Pareto-superior equilibrium can be deterred by a different continuation equilibrium which harms the proposer and rewards the refuser. This paper introduces a simple protocol of renegotiation for repeated games and defines the stability of social norms and renegotiation-proof outcomes in terms of a simple equilibrium refinement. We provide distinct necessary and sufficient conditions for renegotiation-proofness, which converge to each other as renegotiation frictions become negligible. Renegotiation-proof outcomes always exist and can be all included within a single, most permissive social norm that is straightforward to characterize graphically.
Document Type: 
Working Paper

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