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Computing equilibria in finance economies

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  • Herings, P. Jean-Jacques

    (Maastricht University)

  • Kubler, Felix

Abstract

The general equilibrium model with incomplete asset markets provides a unified framework for many problems in finance and macroeconomics. In its simplest version with only two time periods and a single physical commodity the model is ideally suited for the study of problems in cross sectional asset pricing and portfolio theory. In this paper we develop a homotopy algorithm to approximate equilibria in these ''finance economies''. Since the algorithm is tailor made for finance economies, the number of nonlinear equations that has to be solved for, and therefore the computing time,is an order of magnitude smaller than that of existing general purpose algorithms.The algorithm is shown to be generically convergent. We implement the algorithm using HOMPACK. To illustrate its performance, we present various numerical examples and report running times.

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Bibliographic Info

Paper provided by Maastricht University in its series Open Access publications from Maastricht University with number urn:nbn:nl:ui:27-12170.

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Date of creation: 2002
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Publication status: Published in Mathematics of operations research (2002) v.27, p.637-646
Handle: RePEc:ner:maastr:urn:nbn:nl:ui:27-12170

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  1. R. Mehra & E. Prescott, 2010. "The equity premium: a puzzle," Levine's Working Paper Archive 1401, David K. Levine.
  2. Herings, P.J.J., 1994. "A globally and universally stable price adjustment process," Discussion Paper 1994-52, Tilburg University, Center for Economic Research.
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  6. Herings,O. Jean-Jacques & Kubler,Felix, 2000. "The Robustness of CAPM-A Computational Approach," Research Memoranda 035, Maastricht : METEOR, Maastricht Research School of Economics of Technology and Organization.
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  16. Schmedders, Karl, 1998. "Computing equilibria in the general equilibrium model with incomplete asset markets," Journal of Economic Dynamics and Control, Elsevier, vol. 22(8-9), pages 1375-1401, August.
  17. Talman, A.J.J. & Doup, T.M. & Laan , G. van der, 1987. "The (2**(n+1)-2)-ray algorithm: A new simplicial algorithm to compute economic equilibria," Open Access publications from Tilburg University urn:nbn:nl:ui:12-153107, Tilburg University.
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Citations

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Cited by:
  1. Herings, P. Jean-Jacques & Kubler, Felix, 2007. "Approximate CAPM when preferences are CRRA," Open Access publications from Maastricht University urn:nbn:nl:ui:27-12150, Maastricht University.
  2. Jacco Thijssen, 2008. "A computational study on general equilibrium pricing of derivative securities," Annals of Finance, Springer, vol. 4(4), pages 505-523, October.
  3. Talman, A.J.J. & Thijssen, J.J.J., 2003. "Existence of Equilibrium and Price Adjustments in a Finance Economy with Incomplete Markets," Discussion Paper 2003-79, Tilburg University, Center for Economic Research.
  4. P. Jean-Jacques Herings & Felix Kubler, 2000. "The Robustness of the CAPM-A Computational Approach," Econometric Society World Congress 2000 Contributed Papers 0400, Econometric Society.
  5. Esteban Bravo, Mercedes, 2008. "An interior-point algorithm for computing equilibria in economies with incomplete asset markets," Open Access publications from Universidad Carlos III de Madrid info:hdl:10016/7357, Universidad Carlos III de Madrid.

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