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Modeling Optimism and Pessimism in the Foreign Exchange Market

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  • Paul De Grauwe
  • Pablo Rovira Kaltwasser

Abstract

In this paper we model how the existence of different beliefs about the underlying fundamental value of a currency affects the dynamics of the exchange rate. We find that a divergence of beliefs creates the potential for waves of optimism and pessimism that alternate in an unpredictable way. These waves are disconnected from the underlying (objective) fundamental value. We also find that in such a world there is "sensitivity to initial conditions", i.e. small changes in beliefs can fundamentally alter the time path of the exchange rate.

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File URL: http://www.cesifo-group.de/portal/page/portal/DocBase_Content/WP/WP-CESifo_Working_Papers/wp-cesifo-2007/wp-cesifo-2007-04/cesifo1_wp1962.pdf
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Bibliographic Info

Paper provided by CESifo Group Munich in its series CESifo Working Paper Series with number 1962.

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Date of creation: 2007
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Handle: RePEc:ces:ceswps:_1962

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  1. Lux, Thomas & Schornstein, Sascha, 2002. "Genetic learning as an explanation of stylized facts of foreign exchange markets," Discussion Paper Series 1: Economic Studies 2002,29, Deutsche Bundesbank, Research Centre.
  2. Brock, William A. & Hommes, Cars H., 1998. "Heterogeneous beliefs and routes to chaos in a simple asset pricing model," Journal of Economic Dynamics and Control, Elsevier, vol. 22(8-9), pages 1235-1274, August.
  3. Martin D. D. Evans & Richard K. Lyons, 2002. "Order Flow and Exchange Rate Dynamics," Journal of Political Economy, University of Chicago Press, vol. 110(1), pages 170-180, February.
  4. Gilles Teyssière & Alan Kirman, 2001. "Microeconomic Models for Long-Memory in the Volatility of Financial Time Series," CeNDEF Workshop Papers, January 2001 5A.4, Universiteit van Amsterdam, Center for Nonlinear Dynamics in Economics and Finance.
  5. Taylor, Mark P. & Allen, Helen, 1992. "The use of technical analysis in the foreign exchange market," Journal of International Money and Finance, Elsevier, vol. 11(3), pages 304-314, June.
  6. Obstfeld, Maurice & Rogoff, Kenneth, 2005. "The Unsustainable US Current Account Position Revisited," CEPR Discussion Papers 5416, C.E.P.R. Discussion Papers.
  7. Luisa Corrado & Marcus Miller & Lei Zhang, 2007. "Bulls, bears and excess volatility: can currency intervention help?," International Journal of Finance & Economics, John Wiley & Sons, Ltd., vol. 12(2), pages 261-272.
  8. Cars H. Hommes, 2005. "Heterogeneous Agent Models in Economics and Finance," Tinbergen Institute Discussion Papers 05-056/1, Tinbergen Institute.
  9. Brock, W.A. & Hommes, C.H., 1995. "Rational Routes to Randomness," Working papers 9506, Wisconsin Madison - Social Systems.
  10. Daniel Kahneman & Jack L. Knetsch & Richard H. Thaler, 1991. "Anomalies: The Endowment Effect, Loss Aversion, and Status Quo Bias," Journal of Economic Perspectives, American Economic Association, vol. 5(1), pages 193-206, Winter.
  11. Brunnermeier, Markus K., 2001. "Asset Pricing under Asymmetric Information: Bubbles, Crashes, Technical Analysis, and Herding," OUP Catalogue, Oxford University Press, number 9780198296980.
  12. Brock, W.A. & Hommes, C.H., 1996. "A Rational Route to Randomness," Working papers 9530r, Wisconsin Madison - Social Systems.
  13. Ricardo Hausmann & Federico Sturzenegger, 2006. "Why the US Current Account Deficit is Sustainable," International Finance, Wiley Blackwell, vol. 9(2), pages 223-240, 08.
  14. Lux, T. & M. Marchesi, . "Scaling and Criticality in a Stochastic Multi-Agent Model of a Financial Market," Discussion Paper Serie B 438, University of Bonn, Germany, revised Jul 1998.
  15. Lux, Thomas, 1998. "The socio-economic dynamics of speculative markets: interacting agents, chaos, and the fat tails of return distributions," Journal of Economic Behavior & Organization, Elsevier, vol. 33(2), pages 143-165, January.
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Cited by:
  1. Ouattara, Bazoumana & Amegashie, J. Atsu & Strobl, Eric, 2009. "Moral Hazard and the Composition of Transfers: Theory with an Application to Foreign Aid," Proceedings of the German Development Economics Conference, Frankfurt a.M. 2009 24, Verein für Socialpolitik, Research Committee Development Economics.
  2. Kaltwasser, Pablo Rovira, 2010. "Uncertainty about fundamentals and herding behavior in the FOREX market," Physica A: Statistical Mechanics and its Applications, Elsevier, vol. 389(6), pages 1215-1222.
  3. Yuan, Chunming, 2011. "The exchange rate and macroeconomic determinants: Time-varying transitional dynamics," The North American Journal of Economics and Finance, Elsevier, vol. 22(2), pages 197-220, August.
  4. Christian Wolff & Ron Jongen & Willem F.C. Verschoor & Remco C.J. Zwinkels, 2009. "Dispersion of Beliefs in the Foreign Exchange Market," LSF Research Working Paper Series 09-01, Luxembourg School of Finance, University of Luxembourg.
  5. Corrado, L. & Miller, M. & Zhang, L., 2007. "Bulls, Bears and Excess Volatility: can currency intervention help?," Cambridge Working Papers in Economics 0708, Faculty of Economics, University of Cambridge.

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