Expectations Driven Distortions in the Foreign Exchange Market
The aim of this paper is to explain the phenomenon of distortions in the foreign exchange market. Distortions in the sense of (lasting) deviations of the exchange rate from its fundamental value are a sign of market inefficiency. One well known example for such a phenomenon is the bubble path of the US Dollar in the eighties. The starting point for our investigation is a chartists-fundamentalists model. Motivated by empirical observations a model is developed where boundedly rational market participants choose at the beginning of each new trading period between a technical and a fundamental trading rule to determine their speculative investment positions. If one subscribes to the strong assumption that the agents are able to figure out the true fundamental value of the exchange rate, then the exchange rate fluctuates in a complex way around its fundamental value and the foreign exchange market is more or less efficient. However, the contribution of this paper is to model the perception process of the fundamental exchange rate more realistically on the grounds of psychological evidence. Within this framework forces which influence the distortion are analysed: While the agents follow the news arrival process closely, mistakes in the information processing occur. These mistakes are propagated over time since the agents tend to stick to their previously perceived fundamental value (anchor heuristic). Moreover, if the agents belief that the spot exchange rate itself contains relevant information and thus incorporate it into their "anchor", the exchange rate becomes even more disconnected with its true fundamental. Nevertheless, in the long run the agents react to macroeconomic imbalances and thus adjust their perception. By this learning procedure, the distortion eventually is corrected and some long-term mean-reversion sets in. Note that the results are not the outcome of curious exchange rate fluctuations but that the generated time series shares some basic stylized facts with the empirical data. For instance, the model possesses the property of a non stable, fat-tailed distribution of the returns.
To our knowledge, this item is not available for
download. To find whether it is available, there are three
1. Check below under "Related research" whether another version of this item is available online.
2. Check on the provider's web page whether it is in fact available.
3. Perform a search for a similarly titled item that would be available.
|Date of creation:||04 Jan 2001|
|Date of revision:|
|Contact details of provider:|| Postal: |
Phone: + 31 20 525 52 58
Fax: + 31 20 525 52 83
Web page: http://www.fee.uva.nl/cendef/
More information through EDIRC
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.:
- Benoit Mandelbrot, 1963. "The Variation of Certain Speculative Prices," The Journal of Business, University of Chicago Press, vol. 36, pages 394.
- 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.
- Menkhoff, Lukas, 1997. "Examining the Use of Technical Currency Analysis," International Journal of Finance & Economics, John Wiley & Sons, Ltd., vol. 2(4), pages 307-18, October.
- Brock, William & Lakonishok, Josef & LeBaron, Blake, 1992.
" Simple Technical Trading Rules and the Stochastic Properties of Stock Returns,"
Journal of Finance,
American Finance Association, vol. 47(5), pages 1731-64, December.
- Brock, W. & Lakonishok, J. & Lebaron, B., 1991. "Simple Technical Trading Rules And The Stochastic Properties Of Stock Returns," Working papers 90-22, Wisconsin Madison - Social Systems.
- David M. Cutler & James M. Poterba & Lawrence H. Summers, 1990.
"Speculative Dynamics and the Role of Feedback Traders,"
NBER Working Papers
3243, National Bureau of Economic Research, Inc.
- Cutler, David M & Poterba, James M & Summers, Lawrence H, 1990. "Speculative Dynamics and the Role of Feedback Traders," American Economic Review, American Economic Association, vol. 80(2), pages 63-68, May.
- Culter, D.M. & Poterba, J.M. & Summers, L.H., 1990. "Speculative Dynamics And The Role Of Feedback Traders," Working papers 545, Massachusetts Institute of Technology (MIT), Department of Economics.
- Brock, William A & LeBaron, Blake D, 1996.
"A Dynamic Structural Model for Stock Return Volatility and Trading Volume,"
The Review of Economics and Statistics,
MIT Press, vol. 78(1), pages 94-110, February.
- William A. Brock & Blake D. LeBaron, 1995. "A Dynamic Structural Model for Stock Return Volatility and Trading Volume," NBER Working Papers 4988, National Bureau of Economic Research, Inc.
- Goodhart, Charles, 1988. "The Foreign Exchange Market: A Random Walk with a Dragging Anchor," Economica, London School of Economics and Political Science, vol. 55(220), pages 437-60, November.
- William A. Brock & Cars H. Hommes, 1997.
"A Rational Route to Randomness,"
Econometric Society, vol. 65(5), pages 1059-1096, September.
- J. Doyne Farmer, 1998.
"Market Force, Ecology, and Evolution,"
Research in Economics
98-12-117e, Santa Fe Institute.
- Black, Fischer, 1986. " Noise," Journal of Finance, American Finance Association, vol. 41(3), pages 529-43, July.
- Lux, Thomas, 1997. "Time variation of second moments from a noise trader/infection model," Journal of Economic Dynamics and Control, Elsevier, vol. 22(1), pages 1-38, November.
- Ito, Takatoshi, 1990.
"Foreign Exchange Rate Expectations: Micro Survey Data,"
American Economic Review,
American Economic Association, vol. 80(3), pages 434-49, June.
- Takatoshi Ito, 1988. "Foreign Exchange Rate Expectations: Micro Survey Data," NBER Working Papers 2679, National Bureau of Economic Research, Inc.
- Goodhart, Charles A. E. & McMahon, Patrick C. & Ngama, Yerima L., 1993. "Testing for unit roots with very high frequency spot exchange rate data," Journal of Macroeconomics, Elsevier, vol. 15(3), pages 423-438.
- 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.
- Frankel, Jeffrey A & Froot, Kenneth A, 1986. "Understanding the U.S. Dollar in the Eighties: The Expectations of Chartists and Fundamentalists," The Economic Record, The Economic Society of Australia, vol. 0(0), pages 24-38, Supplemen.
- Hommes, C.H. & Sonnemans, J. & Tuinstra, J. & van de Velden, H., 1999. "Expectation Driven Price Volatility in an Experimental Cobweb Economy," CeNDEF Working Papers 99-07, Universiteit van Amsterdam, Center for Nonlinear Dynamics in Economics and Finance.
When requesting a correction, please mention this item's handle: RePEc:ams:cdws01:1a.3. See general information about how to correct material in RePEc.
For technical questions regarding this item, or to correct its authors, title, abstract, bibliographic or download information, contact: (Christopher F. Baum)
If references are entirely missing, you can add them using this form.