Competition and efficiency in congested markets:

"We study the efficiency of oligopoly equilibria in congested markets. The motivating examples are the allocation of network flows in a communication network or of traffic in a transportation network. We show that increasing competition among oligopolists can reduce efficiency, measured as the...

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Bibliographic Details
Main Authors: Acemoglu, Daron 1967- (Author), Ozdaglar, Asuman E. (Author)
Format: Book
Language:English
Published: Cambridge, Mass. National Bureau of Economic Research 2005
Series:National Bureau of Economic Research <Cambridge, Mass.>: NBER working paper series 11201
Subjects:
Online Access:Volltext
Summary:"We study the efficiency of oligopoly equilibria in congested markets. The motivating examples are the allocation of network flows in a communication network or of traffic in a transportation network. We show that increasing competition among oligopolists can reduce efficiency, measured as the difference between users' willingness to pay and delay costs. We characterize a tight bound of 5/6 on efficiency in pure strategy equilibria. This bound is tight even when the number of routes and oligopolists is arbitrarily large. We also study the efficiency properties of mixed strategy equilibria"--National Bureau of Economic Research web site.
Physical Description:43 S. graph. Darst.

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