Ambiguity, Information Acquisition and Price Swings in Asset Markets
This paper studies asset markets in which ambiguity averse investors face Knightian uncertainty about expected payoffs. The same investors, however, might wish to resolve their uncertainty, although not risk, by just purchasing information. In these markets, uninformed and, hence, ambiguity averse, agents may coexist with informed agents, as a result of a rational information acquisition process. Moreover, there are complementaries in information acquisition, multiplicity of equilibria, history-dependent prices, and large price swings occurring after small changes in the uncertainty surrounding the asset expected payoffs. Our model suggests the importance of uncertainty, as a new channel for episodes of extreme price volatility, media frenzies and media glooms.
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- Han Ozsoylev & Jan Werner, 2011. "Liquidity and asset prices in rational expectations equilibrium with ambiguous information," Economic Theory, Springer;Society for the Advancement of Economic Theory (SAET), vol. 48(2), pages 469-491, October.
- H. Henry Cao & Tan Wang & Harold H. Zhang, 2005. "Model Uncertainty, Limited Market Participation, and Asset Prices," Review of Financial Studies, Society for Financial Studies, vol. 18(4), pages 1219-1251.
- Larry Epstein & Martin Schneider, 2005.
"Ambiguity, Information Quality and Asset Pricing,"
RCER Working Papers
519, University of Rochester - Center for Economic Research (RCER).
- Gadi Barlevy & Pietro Veronesi, "undated".
"Information Acquisition in Financial Markets,"
CRSP working papers
360, Center for Research in Security Prices, Graduate School of Business, University of Chicago.
- Diego García & Günter Strobl, 2011. "Relative Wealth Concerns and Complementarities in Information Acquisition," Review of Financial Studies, Society for Financial Studies, vol. 24(1), pages 169-207.
- Itzhak Gilboa & David Schmeidler, 1989.
"Maxmin Expected Utility with Non-Unique Prior,"
- Laura Veldkamp, 2003.
"Media Frenzies in Markets for Financial Information,"
03-20, New York University, Leonard N. Stern School of Business, Department of Economics.
- Laura L. Veldkamp, 2006. "Media Frenzies in Markets for Financial Information," American Economic Review, American Economic Association, vol. 96(3), pages 577-601, June.
- Laura Veldkamp, 2004. "Media Frenzies in Markets for Financial Information," Econometric Society 2004 North American Winter Meetings 4, Econometric Society.
- Epstein Larry G. & Wang Tan, 1995. "Uncertainty, Risk-Neutral Measures and Security Price Booms and Crashes," Journal of Economic Theory, Elsevier, vol. 67(1), pages 40-82, October.
- Peter Klibanoff & Massimo Marinacci & Sujoy Mukerji, 2005.
"A Smooth Model of Decision Making under Ambiguity,"
Econometric Society, vol. 73(6), pages 1849-1892, November.
- Peter Klibanoff & Massimo Marinacci & Sujoy Mukerji, 2002. "A smooth model of decision making under ambiguity," ICER Working Papers - Applied Mathematics Series 11-2003, ICER - International Centre for Economic Research, revised Apr 2003.
- Sujoy Mukerji & Peter Klibanoff, 2002. "A Smooth Model of Decision,Making Under Ambiguity," Economics Series Working Papers 113, University of Oxford, Department of Economics.
- Froot, Kenneth A & Scharftstein, David S & Stein, Jeremy C, 1992.
" Herd on the Street: Informational Inefficiencies in a Market with Short-Term Speculation,"
Journal of Finance,
American Finance Association, vol. 47(4), pages 1461-1484, September.
- Kenneth A. Froot & David S. Scharfstein & Jeremy C. Stein, 1990. "Herd on the Street: Informational Inefficiencies in a Market with Short-Term Speculation," NBER Working Papers 3250, National Bureau of Economic Research, Inc.
- Ricardo J. Caballero & Arvind Krishnamurthy, 2007.
"Collective Risk Management in a Flight to Quality Episode,"
NBER Working Papers
12896, National Bureau of Economic Research, Inc.
- Ricardo J. Caballero & Arvind Krishnamurthy, 2008. "Collective Risk Management in a Flight to Quality Episode," Journal of Finance, American Finance Association, vol. 63(5), pages 2195-2230, October.
- Sanford J Grossman & Joseph E Stiglitz, 1997.
"On the Impossibility of Informationally Efficient Markets,"
Levine's Working Paper Archive
1908, David K. Levine.
- Grossman, Sanford J & Stiglitz, Joseph E, 1980. "On the Impossibility of Informationally Efficient Markets," American Economic Review, American Economic Association, vol. 70(3), pages 393-408, June.
- Pascal J. Maenhout, 2004. "Robust Portfolio Rules and Asset Pricing," Review of Financial Studies, Society for Financial Studies, vol. 17(4), pages 951-983.
- Judson A. Caskey, 2009. "Information in Equity Markets with Ambiguity-Averse Investors," Review of Financial Studies, Society for Financial Studies, vol. 22(9), pages 3595-3627, September.
- Epstein, Larry G & Wang, Tan, 1994. "Intertemporal Asset Pricing Under Knightian Uncertainty," Econometrica, Econometric Society, vol. 62(2), pages 283-322, March.
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