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Journal of Political Economy Vol. 127 No. 1 2019

“Nash-in-Nash” Bargaining: A Microfoundation for Applied Work

Allan Collard-Wexler; Gautam Gowrisankaran1; Robin S. Lee1,2

1 National Bureau of Economic Research · 2 Harvard University

open access

Abstract

A “Nash equilibrium in Nash bargains” has become a workhorse bargaining model in applied analyses of bilateral oligopoly. This paper proposes a noncooperative foundation for “Nash-in-Nash” bargaining that extends Rubinstein’s alternating offers model to multiple upstream and downstream firms. We provide conditions on firms’ marginal contributions under which there exists, for sufficiently short time between offers, an equilibrium with agreement among all firms at prices arbitrarily close to Nash-in-Nash prices, that is, each pair’s Nash bargaining solution given agreement by all other pairs. Conditioning on equilibria without delayed agreement, limiting prices are unique. Unconditionally, they are unique under stronger assumptions.

DOI
10.1086/700729
Volume
127
Issue
1
Pages
163-195
Language
en
Sources
crossref bibtex:phds-export.bib openalex

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