Forming price expectations in positive and negative feedback systems
AbstractWe analyse the results of an experiment on expectation formation carried out last year (i.e., 2003) in the CREED laboratory in Amsterdam. The experiment involved 78 participants, who were asked to predict prices in artificial single-good economies, and were paid according to their accuracy in doing so. Thirteen markets, with six subjects each, were created, in two different treatments. The first treatment concerns a Cobweb-like commodity market with supply-driven expectations feedback. The second treatment concerns a speculative asset market with demanddriven expectations feedback. In the first treatment price fluctuations are relatively stable, quickly converging to the Rational Expectations fundamental value. In the second treatment prices do not converge quickly, but tend to display a slow oscillation around the fundamental price. An important factor in generating these differences is shown to be the strong coordination of price predictions among participants. This suggests a large degree of homogeneity in the expectation rules applied by the participants, which was confirmed by explicitly fitting the individual predictions to a linear adaptive autoregressive specification.
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Bibliographic InfoPaper provided by Universiteit van Amsterdam, Center for Nonlinear Dynamics in Economics and Finance in its series CeNDEF Working Papers with number 04-15.
Date of creation: 2004
Date of revision:
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Postal: Dept. of Economics and Econometrics, Universiteit van Amsterdam, Roetersstraat 11, NL - 1018 WB Amsterdam, The Netherlands
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Fax: + 31 20 525 52 83
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- Giulio Bottazzi & Giovanna Devetag, 2003.
"Expectations Structure in Asset Pricing Experiments,"
ROCK Working Papers
022, Department of Computer and Management Sciences, University of Trento, Italy, revised 12 Jun 2008.
- Giulio Bottazzi & Giovanna Devetag, 2005. "Expectations structure in asset pricing experiments," CEEL Working Papers 0503, Cognitive and Experimental Economics Laboratory, Department of Economics, University of Trento, Italia.
- Giulio Bottazzi & Maria Giovanna Devetag, 2003. "Expectations Structure in Asset Pricing Experiments," LEM Papers Series 2003/19, Laboratory of Economics and Management (LEM), Sant'Anna School of Advanced Studies, Pisa, Italy.
- Johannes Leitner & Robert Schmidt, 2007. "Expectation formation in an experimental foreign exchange market," Central European Journal of Operations Research, Springer, vol. 15(2), pages 167-184, June.
- Branch, William A., 2007. "Sticky information and model uncertainty in survey data on inflation expectations," Journal of Economic Dynamics and Control, Elsevier, vol. 31(1), pages 245-276, January.
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