Belief merging and revision under social influence: An explanation for the volatility clustering puzzle
AbstractA share price in a stock market can be thought of as arising out of an aggregation procedure. The price of a stock aggregates many individual beliefs into a collective one, the collective will of the market, so to speak. How does this aggregation come about? And is this aggregation fair in the sense that it correctly reflects the value? Furthermore,in the context of a stock market, it becomes immediately clear that belief merging cannot be separated from belief revision since investors in the market have a direct stake in what others think and clearly find it optimal to revise their beliefs in the light of the information about what others believe. We show that if investors are revising their beliefs not only after receiving new exogenous information but also after their social interactions with other investors and these revised beliefs are getting merged to generate the stock price under the accepted principles of finance (no arbitrage) then the resulting price dynamics explain a long standing puzzle in finance, the volatility clustering puzzle.
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Bibliographic InfoPaper provided by University Library of Munich, Germany in its series MPRA Paper with number 657.
Date of creation: Aug 2006
Date of revision:
Volatility clustering; Social influence; Agent based simulation; Anomaly;
Find related papers by JEL classification:
- G1 - Financial Economics - - General Financial Markets
This paper has been announced in the following NEP Reports:
- NEP-ALL-2006-11-12 (All new papers)
- NEP-CDM-2006-11-12 (Collective Decision-Making)
- NEP-SOC-2006-11-12 (Social Norms & Social Capital)
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- Xue-Zhong (Tony) He & Carl Chiarella, 2001.
"Asset Price and Wealth Dynamics under Heterogeneous Expectations,"
CeNDEF Workshop Papers, January 2001
5A.2, Universiteit van Amsterdam, Center for Nonlinear Dynamics in Economics and Finance.
- C. Chiarella & X-Z. He, 2001. "Asset price and wealth dynamics under heterogeneous expectations," Quantitative Finance, Taylor & Francis Journals, vol. 1(5), pages 509-526.
- Carl Chiarella & Xue-Zhong He, 2001. "Asset Price and Wealth Dynamics Under Heterogeneous Expectations," Research Paper Series 56, Quantitative Finance Research Centre, University of Technology, Sydney.
- 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.
- Gaunersdorfer, A. & Hommes, C.H. & Wagener, F.O.O., 2000.
"Bifurcation Routes to Volatility Clustering,"
CeNDEF Working Papers
00-04, Universiteit van Amsterdam, Center for Nonlinear Dynamics in Economics and Finance.
- Allison, G. & Fudenberg, D., 1992.
"Rules of Thumb for Social Learning,"
92-12, Massachusetts Institute of Technology (MIT), Department of Economics.
- Ellison, Glenn & Fudenberg, Drew, 1993. "Rules of Thumb for Social Learning," Scholarly Articles 3196332, Harvard University Department of Economics.
- Ellison, Glenn & Fudenberg, Drew, 1992. "Rules of Thumb for Social Learning," IDEI Working Papers 17, Institut d'Économie Industrielle (IDEI), Toulouse.
- G. Ellison & D. Fudenberg, 2010. "Rules of Thumb for Social Learning," Levine's Working Paper Archive 435, David K. Levine.
- Eugene Kandel & Ben-Zion Zilberfarb, 1999. "Differential Interpretation Of Information In Inflation Forecasts," The Review of Economics and Statistics, MIT Press, vol. 81(2), pages 217-226, May.
- Engle III, Robert F., 2003.
"Risk and Volatility: Econometric Models and Financial Practice,"
Nobel Prize in Economics documents
2003-4, Nobel Prize Committee.
- Robert Engle, 2004. "Risk and Volatility: Econometric Models and Financial Practice," American Economic Review, American Economic Association, vol. 94(3), pages 405-420, June.
- Durlauf, Steven N, 1993.
"Nonergodic Economic Growth,"
Review of Economic Studies,
Wiley Blackwell, vol. 60(2), pages 349-66, April.
- Gilboa, Itzhak & Schmeidler, David, 1989. "Maxmin expected utility with non-unique prior," Journal of Mathematical Economics, Elsevier, vol. 18(2), pages 141-153, April.
- 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.
- Brock, W.A. & Hommes, C.H., 1996. "Hetergeneous Beliefs and Routes to Chaos in a Simple Asset Pricing Model," Working papers 9621, Wisconsin Madison - Social Systems.
- Bollerslev, Tim, 1986.
"Generalized autoregressive conditional heteroskedasticity,"
Journal of Econometrics,
Elsevier, vol. 31(3), pages 307-327, April.
- Tim Bollerslev, 1986. "Generalized autoregressive conditional heteroskedasticity," EERI Research Paper Series EERI RP 1986/01, Economics and Econometrics Research Institute (EERI), Brussels.
- Engle, Robert F, 1982. "Autoregressive Conditional Heteroscedasticity with Estimates of the Variance of United Kingdom Inflation," Econometrica, Econometric Society, vol. 50(4), pages 987-1007, July.
- Rubinstein, Ariel, 1993.
"On Price Recognition and Computational Complexity in a Monopolistic Model,"
Journal of Political Economy,
University of Chicago Press, vol. 101(3), pages 473-84, June.
- Rubenstein, A., 1991. "On Price Recognition and Computational Complexity in a Monopolistic Model," Papers 35-91, Tel Aviv.
- Matthew Rabin, 2001.
"Risk Aversion and Expected Utility Theory: A Calibration Theorem,"
Levine's Working Paper Archive
7667, David K. Levine.
- Matthew Rabin, 2000. "Risk Aversion and Expected-Utility Theory: A Calibration Theorem," Econometrica, Econometric Society, vol. 68(5), pages 1281-1292, September.
- Matthew Rabin, 2001. "Risk Aversion and Expected-Utility Theory: A Calibration Theorem," Method and Hist of Econ Thought 0012001, EconWPA.
- Matthew Rabin., 2000. "Risk Aversion and Expected-Utility Theory: A Calibration Theorem," Economics Working Papers E00-279, University of California at Berkeley.
- Rabin, Matthew, 2000. "Risk Aversion and Expected-Utility Theory: A Calibration Theorem," Department of Economics, Working Paper Series qt731230f8, Department of Economics, Institute for Business and Economic Research, UC Berkeley.
- Chiarella, Carl & He, Xue-Zhong, 2002.
"Heterogeneous Beliefs, Risk and Learning in a Simple Asset Pricing Model,"
Society for Computational Economics, vol. 19(1), pages 95-132, February.
- Xue-Zhong He & Carl Chiarella, 1999. "Heterogeneous Beliefs, Risk and Learning in a Simple Asset-Pricing Model," Computing in Economics and Finance 1999 223, Society for Computational Economics.
- Carl Chiarella & Xue-Zhong He, 1999. "Heterogeneous Beliefs, Risks and Learning in a Simple Asset Pricing Model," Research Paper Series 18, Quantitative Finance Research Centre, University of Technology, Sydney.
- Farmer, J. Doyne & Joshi, Shareen, 2002.
"The price dynamics of common trading strategies,"
Journal of Economic Behavior & Organization,
Elsevier, vol. 49(2), pages 149-171, October.
- Michael P. Clements & David F. Hendry, 2001. "Forecasting Non-Stationary Economic Time Series," MIT Press Books, The MIT Press, edition 1, volume 1, number 0262531895, December.
- Robert Engle, 2001. "GARCH 101: The Use of ARCH/GARCH Models in Applied Econometrics," Journal of Economic Perspectives, American Economic Association, vol. 15(4), pages 157-168, Fall.
- Kandel, Eugene & Pearson, Neil D, 1995. "Differential Interpretation of Public Signals and Trade in Speculative Markets," Journal of Political Economy, University of Chicago Press, vol. 103(4), pages 831-72, August.
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