Electronic Resource
Berkeley, Calif.
:
Berkeley Electronic Press (now: De Gruyter)
The @B.E. journal of theoretical economics
7.2007, 1, art22
ISSN:
1555-0478
Source:
Berkeley Electronic Press Academic Journals
Topics:
Economics
Notes:
Recently, it has been claimed that full-information multiple equilibria in games with strategic complementarities are not robust, because generalizing to allow slightly heterogeneous information implies uniqueness. This paper argues that this "global games" uniqueness result is itself not robust. If we generalize by allowing most agents to observe a few previous actions before choosing, instead of forcing players to move exactly simultaneously, then multiplicity of outcomes is restored. Only a small sample of observations is needed to make our herding equilibrium behave like a full-information sunspot equilibrium instead of a global games equilibrium.
Type of Medium:
Electronic Resource
URL:
http://www.bepress.com/bejte/vol7/iss1/art22
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