Bargaining and efficiency in networks

We study an infinite horizon game in which pairs of players connected in a network are randomly matched to bargain over a unit surplus. Players who reach agreement are removed from the network without replacement. The global logic of efficient matchings and the local nature of bargaining, in combina...

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Main Authors: Abreu, Dilip, Manea, Mihai
Other Authors: Massachusetts Institute of Technology. Department of Economics
Format: Article
Language:en_US
Published: Elsevier 2015
Online Access:http://hdl.handle.net/1721.1/98851
https://orcid.org/0000-0002-7436-2800
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author Abreu, Dilip
Manea, Mihai
author2 Massachusetts Institute of Technology. Department of Economics
author_facet Massachusetts Institute of Technology. Department of Economics
Abreu, Dilip
Manea, Mihai
author_sort Abreu, Dilip
collection MIT
description We study an infinite horizon game in which pairs of players connected in a network are randomly matched to bargain over a unit surplus. Players who reach agreement are removed from the network without replacement. The global logic of efficient matchings and the local nature of bargaining, in combination with the irreversible exit of player pairs following agreements, create severe hurdles to the attainment of efficiency in equilibrium. For many networks all Markov perfect equilibria of the bargaining game are inefficient, even as players become patient. We investigate how incentives need to be structured in order to achieve efficiency via subgame perfect, but non-Markovian, equilibria. The analysis extends to an alternative model in which individual players are selected according to some probability distribution, and a chosen player can select a neighbor with whom to bargain.
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spelling mit-1721.1/988512022-09-30T08:15:25Z Bargaining and efficiency in networks Abreu, Dilip Manea, Mihai Massachusetts Institute of Technology. Department of Economics Manea, Mihai We study an infinite horizon game in which pairs of players connected in a network are randomly matched to bargain over a unit surplus. Players who reach agreement are removed from the network without replacement. The global logic of efficient matchings and the local nature of bargaining, in combination with the irreversible exit of player pairs following agreements, create severe hurdles to the attainment of efficiency in equilibrium. For many networks all Markov perfect equilibria of the bargaining game are inefficient, even as players become patient. We investigate how incentives need to be structured in order to achieve efficiency via subgame perfect, but non-Markovian, equilibria. The analysis extends to an alternative model in which individual players are selected according to some probability distribution, and a chosen player can select a neighbor with whom to bargain. 2015-09-22T12:00:22Z 2015-09-22T12:00:22Z 2011-11 2011-09 Article http://purl.org/eprint/type/JournalArticle 00220531 1095-7235 http://hdl.handle.net/1721.1/98851 Abreu, Dilip, and Mihai Manea. “Bargaining and Efficiency in Networks.” Journal of Economic Theory 147, no. 1 (January 2012): 43–70. https://orcid.org/0000-0002-7436-2800 en_US http://dx.doi.org/10.1016/j.jet.2011.11.003 Journal of Economic Theory Creative Commons Attribution-Noncommercial-NoDerivatives http://creativecommons.org/licenses/by-nc-nd/4.0/ application/pdf Elsevier MIT Web Domain
spellingShingle Abreu, Dilip
Manea, Mihai
Bargaining and efficiency in networks
title Bargaining and efficiency in networks
title_full Bargaining and efficiency in networks
title_fullStr Bargaining and efficiency in networks
title_full_unstemmed Bargaining and efficiency in networks
title_short Bargaining and efficiency in networks
title_sort bargaining and efficiency in networks
url http://hdl.handle.net/1721.1/98851
https://orcid.org/0000-0002-7436-2800
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