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Bulls, Bears and Excess Volatility: can currency intervention help?

Listed author(s):
  • Corrado, L.
  • Miller, M.
  • Zhang, L.

Asset mis-pricing may reflect investor psychology, with excess volatility arising 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-sterilised 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 sterilised intervention may also play a coordinating role.

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File URL: http://www.econ.cam.ac.uk/research/repec/cam/pdf/cwpe0708.pdf
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Paper provided by Faculty of Economics, University of Cambridge in its series Cambridge Working Papers in Economics with number 0708.

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Length: 29
Date of creation: Jan 2007
Handle: RePEc:cam:camdae:0708
Note: Ec
Contact details of provider: Web page: http://www.econ.cam.ac.uk/index.htm

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  2. George-Marios Angeletos & Christian Hellwig & Alessandro Pavan, 2005. "Signaling in a Global Game: Coordination and Policy Traps," Discussion Papers 1400, Northwestern University, Center for Mathematical Studies in Economics and Management Science.
  3. 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.
  4. Morris, S & Song Shin, H, 1996. "Unique Equilibrium in a Model of Self-Fulfilling Currency Attacks," Economics Papers 126, Economics Group, Nuffield College, University of Oxford.
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  6. George-Marios Angeletos & Christian Hellwig & Alessandro Pavan, 2003. "Coordination and Policy Traps," NBER Working Papers 9767, National Bureau of Economic Research, Inc.
  7. Luisa Corrado & Marcus Miller & Lei Zhang, 2007. "Exchange Rate Monitoring Bands: Theory and Policy," Money Macro and Finance (MMF) Research Group Conference 2006 146, Money Macro and Finance Research Group.
  8. Nicholas Barberis & Richard Thaler, 2002. "A Survey of Behavioral Finance," NBER Working Papers 9222, National Bureau of Economic Research, Inc.
  9. Krugman, P. & Miller, M., 1992. "Why Have a Target Zone?," The Warwick Economics Research Paper Series (TWERPS) 394, University of Warwick, Department of Economics.
  10. Maurice Obstfeld, 1995. "Models of Currency Crises with Self-Fulfilling Features," NBER Working Papers 5285, National Bureau of Economic Research, Inc.
  11. Alogoskoufis, G. & Portes, R. & Rey, H., 1997. "The Emergence of the Euro as an International Currency," DELTA Working Papers 97-28, DELTA (Ecole normale supérieure).
  12. Mark P. Taylor & Lucio Sarno, 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.
  13. Prat, Andrea & Dasgupta, Amil, 2006. "Financial equilibrium with career concerns," Theoretical Economics, Econometric Society, vol. 1(1), pages 67-93, March.
  14. Jeffrey A. Frankel & C. Fred Bergsten & Michael L. Mussa, 1994. "Exchange Rate Policy," NBER Chapters, in: American Economic Policy in the 1980s, pages 293-366 National Bureau of Economic Research, Inc.
  15. Mark P. Taylor, 1995. "The Economics of Exchange Rates," Journal of Economic Literature, American Economic Association, vol. 33(1), pages 13-47, March.
  16. Frankel, David M. & Morris, Stephen & Pauzner, Ady, 2003. "Equilibrium Selection in Global Games with Strategic Complementarities," Staff General Research Papers Archive 11920, Iowa State University, Department of Economics.
  17. Corsetti, Giancarlo & Dasgupta, Amil & Morris, Stephen & Shin, Hyun Song, 2000. "Does One Soros Make a Difference? A Theory of Currency Crises with Large and Small Traders," CEPR Discussion Papers 2610, C.E.P.R. Discussion Papers.
  18. Paul De Grauwe & Pablo Rovira Kaltwasser, 2007. "Modeling Optimism and Pessimism in the Foreign Exchange Market," CESifo Working Paper Series 1962, CESifo Group Munich.
  19. Williamson, John, 1998. "Crawling Bands or Monitoring Bands: How to Manage Exchange Rates in a World of Capital Mobility," International Finance, Wiley Blackwell, vol. 1(1), pages 59-79, October.
  20. Dasgupta, Amil & Prat, Andrea, 2005. "Asset Price Dynamics When Traders Care About Reputation," CEPR Discussion Papers 5372, C.E.P.R. Discussion Papers.
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