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Review of Economic Studies Vol. 57 No. 1 1990

Decentralized Trading, Strategic Behaviour and the Walrasian Outcome

Ariel Rubinstein1; Asher Wolinsky2

1 Hebrew College · 2 Northwestern University

Abstract

For a market with a finite number of agents, pairwise matching and bargaining, it is shown that, even when the market is frictionless, the equilibrium is not necessarily competitive. It depends on the amount of information agents use. If their behaviour is conditioned only on the sets of agents present and the time, the competitive solution is the unique subgame perfect equilibrium. If agents have full information and condition their behaviour on some of it, there are also noncompetitive equilibria in which behaviour depends on specific information such as the identity of the trading partner and past events.

DOI
10.2307/2297543
Volume
57
Issue
1
Pages
63
Sources
bibtex:phds-export.bib openalex crossref

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