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A Characterization of Robust Sunspot Equilibria

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Author Info
Rod Garratt (University of California, Santa Barbara)
Todd Keister (Centro de Investigación Económica, ITAM)

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Abstract

In nonconvex environments, a sunspot equilibrium can sometimes be destroyed by the introduction of new extrinsic information. We provide a simple test for determining whether or not a particular equilibrium survives, or is robust to, all possible renements of the state space. We use this test to provide a characterization of the set of robust sunspot-equilibrium allocations of a given economy: it is equivalent to the set of equilibrium allocations of the associated lottery economy.

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File URL: http://repositories.cdlib.org/cgi/viewcontent.cgi?article=1090&context=ucsbecon
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Paper provided by Department of Economics, UC Santa Barbara in its series University of California at Santa Barbara, Economics Working Paper Series with number wp12-99.

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Date of creation: 07 Oct 1999
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Handle: RePEc:cdl:ucsbec:wp12-99

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Related research
Keywords: Characterization; Robust ; Sunspot; Equilibria;

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References listed on IDEAS
Please report citation or reference errors to , or , if you are the registered author of the cited work, log in to your RePEc Author Service profile, click on "citations" and make appropriate adjustments.:
  1. Cass, David & Shell, Karl, 1983. "Do Sunspots Matter?," Journal of Political Economy, University of Chicago Press, vol. 91(2), pages 193-227, April. [Downloadable!] (restricted)
  2. Gaetano Antinolfi & Todd Keister, 1998. "Options and sunspots in a simple monetary economy," Economic Theory, Springer, vol. 11(2), pages 295-315. [Downloadable!] (restricted)
  3. Garratt, Rod, 1995. "Decentralizing Lottery Allocations in Markets with Indivisible Commodities," Economic Theory, Springer, vol. 5(2), pages 295-313, March.
  4. Garratt, Rod & Keister, Todd & Qin, Cheng-Zhong & Shell, Karl, 2002. "Equilibrium Prices When the Sunspot Variable Is Continuous," Journal of Economic Theory, Elsevier, vol. 107(1), pages 11-38, November. [Downloadable!] (restricted)
  5. Karl Shell & Aditya Goenka, 1997. "Robustness of sunspot equilibria," Economic Theory, Springer, vol. 10(1), pages 79-98. [Downloadable!] (restricted)
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Cited by:
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  1. Prescott, Edward & Shell, Karl, 2002. "Introduction to Sunspots and Lotteries," Working Papers 02-08, Cornell University, Center for Analytic Economics. [Downloadable!]
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