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Computing Equilibria When Asset Markets Are Incomplete

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  • Brown, Donald J
  • DeMarzo, Peter M
  • Eaves, B Curtis

Abstract

Existence of equilibrium with incomplete markets is problematic because demand functions are typically not continuous. Discontinuities occur at prices for which a marketed asset suddenly becomes redundant. The authors show that this discontinuity disappears if they allow an agent in the economy to introduce a new asset when such redundancies occur. This enables them to prove generic existence with incomplete markets using a standard path-following argument. Moreover, the authors' approach suggests a simple algorithm for computing equilibria when markets are incomplete. They demonstrate this by computing equilibrium for a numerical example. Copyright 1996 by The Econometric Society.

Suggested Citation

  • Brown, Donald J & DeMarzo, Peter M & Eaves, B Curtis, 1996. "Computing Equilibria When Asset Markets Are Incomplete," Econometrica, Econometric Society, vol. 64(1), pages 1-27, January.
  • Handle: RePEc:ecm:emetrp:v:64:y:1996:i:1:p:1-27
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