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Bulls, bears and excess volatility: can currency intervention help?

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Author Info
Luisa Corrado (Faculty of Economics, University of Cambridge and University of Rome, Tor Vergata, Italy)
Marcus Miller (Department of Economics, University of Warwick and CEPR, UK)
Lei Zhang (Department of Economics, University of Warwick, UK)

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Abstract

Asset mis-pricing may reflect investor psychology; and excess volatility can arise from switches of sentiment. For a floating exchange rate where fundamentals follow a random walk, we show that excess volatility can be generated by the repeated entry and exit of currency 'bulls' and 'bears' with switches driven by 'draw-down' trading rules. We argue that non-sterilized intervention-in support of 'monitoring band'-can reduce excess volatility by coordinating beliefs in line with policy. Strategic complementarity in the foreign exchange market suggests that sterilized intervention may also play a coordinating role. Copyright © 2007 John Wiley & Sons, Ltd.

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File URL: http://hdl.handle.net/10.1002/ijfe.329
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Publisher Info
Article provided by John Wiley & Sons, Ltd. in its journal International Journal of Finance & Economics.

Volume (Year): 12 (2007)
Issue (Month): 2 ()
Pages: 261-272
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Handle: RePEc:ijf:ijfiec:v:12:y:2007:i:2:p:261-272

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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. Giancarlo Corsetti & Amil Dasgupta & Stephen Morris & Hyun Song Shin, 2004. "Does One Soros Make a Difference? A Theory of Currency Crises with Large and Small Traders," Review of Economic Studies, Blackwell Publishing, vol. 71(1), pages 87-113, 01. [Downloadable!] (restricted)
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  2. Lucio Sarno & Mark P. Taylor, 2001. "Official Intervention in the Foreign Exchange Market: Is It Effective and, If So, How Does It Work?," Journal of Economic Literature, American Economic Association, vol. 39(3), pages 839-868, September. [Downloadable!] (restricted)
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  3. Richard Portes & Hélène Rey, 1998. "The emergence of the euro as an international currency," Economic Policy, CEPR, CES, MSH, vol. 13(26), pages 305-343, 04. [Downloadable!] (restricted)
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  4. Obstfeld, Maurice, 1996. "Models of Currency Crises with Self-fulfilling Features," CEPR Discussion Papers 1315, C.E.P.R. Discussion Papers. [Downloadable!] (restricted)
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  5. Williamson, John, 1998. "Crawling Bands or Monitoring Bands: How to Manage Exchange Rates in a World of Capital Mobility," International Finance, Blackwell Publishing, vol. 1(1), pages 59-79, October. [Downloadable!] (restricted)
  6. George-Marios Angeletos & Christian Hellwig & Alessandro Pavan, 2006. "Signaling in a Global Game: Coordination and Policy Traps," Journal of Political Economy, University of Chicago Press, vol. 114(3), pages 452-484, June. [Downloadable!] (restricted)
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  7. Morris, Stephen & Shin, Hyun Song, 1998. "Unique Equilibrium in a Model of Self-Fulfilling Currency Attacks," American Economic Review, American Economic Association, vol. 88(3), pages 587-97, June. [Downloadable!] (restricted)
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  8. Corrado, L. & Marcus Miller & Lei Zhang, 2002. "Exchange Rate Monitoring Bands: Theory and Policy," Cambridge Working Papers in Economics 0209, Faculty of Economics, University of Cambridge. [Downloadable!]
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  9. Paul De Grauwe & Pablo Rovira Kaltwasser, 2007. "Modeling Optimism and Pessimism in the Foreign Exchange Market," CESifo Working Paper Series CESifo Working Paper No. , CESifo GmbH. [Downloadable!]
  10. Frankel, David M. & Morris, Stephen & Pauzner, Ady, 2003. "Equilibrium selection in global games with strategic complementarities," Journal of Economic Theory, Elsevier, vol. 108(1), pages 1-44, January. [Downloadable!] (restricted)
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  11. Mark P. Taylor, 1995. "The Economics of Exchange Rates," Journal of Economic Literature, American Economic Association, vol. 33(1), pages 13-47, March. [Downloadable!] (restricted)
  12. Krugman, Paul & Miller, Marcus, 1993. "Why have a target zone?," Carnegie-Rochester Conference Series on Public Policy, Elsevier, vol. 38, pages 279-314, June. [Downloadable!] (restricted)
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  13. George-Marios Angeletos & Christian Hellwig & Alessandro Pavan, 2004. "Coordination and Policy Traps," Levine's Bibliography 122247000000000294, UCLA Department of Economics. [Downloadable!]
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  14. Prat, Andrea & Dasgupta, Amil, 2006. "Financial equilibrium with career concerns," Theoretical Economics, Society for Economic Theory, vol. 1(1), pages 67-93, March. [Downloadable!]
  15. Corsetti, Giancarlo & Guimaraes, Bernardo & Roubini, Nouriel, 2006. "International lending of last resort and moral hazard: A model of IMF's catalytic finance," Journal of Monetary Economics, Elsevier, vol. 53(3), pages 441-471, April. [Downloadable!] (restricted)
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  16. Dasgupta, Amil & Prat, Andrea, 2005. "Asset Price Dynamics When Traders Care About Reputation," CEPR Discussion Papers 5372, C.E.P.R. Discussion Papers. [Downloadable!] (restricted)
  17. Barberis, Nicholas & Shleifer, Andrei & Vishny, Robert, 1998. "A model of investor sentiment1," Journal of Financial Economics, Elsevier, vol. 49(3), pages 307-343, September. [Downloadable!] (restricted)
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(explanations, 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. Michael Melvin & Lukas Menkhoff & Maik Schmeling, 2008. "Automating Exchange Rate Target Zones: Intervention via an Electronic Limit Order Book," CESifo Working Paper Series CESifo Working Paper No. , CESifo GmbH. [Downloadable!]
  2. Paul De Grauwe & Pablo Rovira Kaltwasser, 2007. "Modeling Optimism and Pessimism in the Foreign Exchange Market," CESifo Working Paper Series CESifo Working Paper No. , CESifo GmbH. [Downloadable!]
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