A note on wealth effect under CARA utility
There is a simple but overlooked way of capturing the wealth effect under CARA utility via making the absolute-risk aversion parameter wealth-dependent. We implement this approach in the asymmetric information setting of Verrecchia (1982), and compare it with the alternative approach of changing the utility function (Peress, 2004). Ours is a straightforward tractable extension of Verrecchia, while Peress has to resort to approximate methods. Importantly, our closed-form solution reveals that the relation between wealth and wealth share invested in a risky asset can be negative, while Peress's main result is that this relation is uniquely positive.
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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.:
- Acharya, Viral V & Pedersen, Lasse Heje, 2003.
"Asset Pricing with Liquidity Risk,"
CEPR Discussion Papers
3749, C.E.P.R. Discussion Papers.
- Yacine Ait-Sahalia & Michael W. Brandt, 2001.
"Variable Selection for Portfolio Choice,"
NBER Working Papers
8127, National Bureau of Economic Research, Inc.
- Yacine AÏT-SAHALIA, & Michael W. BRANDT, 2001. "Variable Selection for Portfolio Choice," FAME Research Paper Series rp34, International Center for Financial Asset Management and Engineering.
- Ait-Sahalia, Y. & Brandt, M.W., 2001. "Variable Selection for Portfolio Choice," Papers 34, Manitoba - Department of Economics.
- Annette Vissing-Jorgensen, 2002. "Limited Asset Market Participation and the Elasticity of Intertemporal Substitution," NBER Working Papers 8896, National Bureau of Economic Research, Inc.
- Harrison Hong & Jose Scheinkman & Wei Xiong, 2005.
"Asset Float and Speculative Bubbles,"
NBER Working Papers
11367, National Bureau of Economic Research, Inc.
- Verrecchia, Robert E, 1982. "Information Acquisition in a Noisy Rational Expectations Economy," Econometrica, Econometric Society, vol. 50(6), pages 1415-30, November.
- Bansal, Ravi & Dahlquist, Magnus & Harvey, Campbell R., 2004.
"Dynamic Trading Strategies and Portfolio Choice,"
SIFR Research Report Series
31, Institute for Financial Research.
- Jinill Kim & Sunghyun Henry Kim, 1999.
"Spurious Welfare Reversals in International Business Cycle Models,"
Virginia Economics Online Papers
319, University of Virginia, Department of Economics.
- Kim, Jinill & Kim, Sunghyun Henry, 2003. "Spurious welfare reversals in international business cycle models," Journal of International Economics, Elsevier, vol. 60(2), pages 471-500, August.
- Jinill Kim and Sunghyun Henry Kim, 2001. "Spurious Welfare Reversals in International Business Cycle Models," Computing in Economics and Finance 2001 3, Society for Computational Economics.
- 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.
- Sanford J Grossman & Joseph E Stiglitz, 1997. "On the Impossibility of Informationally Efficient Markets," Levine's Working Paper Archive 1908, David K. Levine.
- Hellwig, Martin F., 1980. "On the aggregation of information in competitive markets," Journal of Economic Theory, Elsevier, vol. 22(3), pages 477-498, June.
- Ravi Jagannathan & Tongshu Ma, 2003.
"Risk Reduction in Large Portfolios: Why Imposing the Wrong Constraints Helps,"
Journal of Finance,
American Finance Association, vol. 58(4), pages 1651-1684, 08.
- Ravi Jagannathan & Tongshu Ma, 2002. "Risk Reduction in Large Portfolios: Why Imposing the Wrong Constraints Helps," NBER Working Papers 8922, National Bureau of Economic Research, Inc.
- John Y. Campbell & Karine Serfaty-De Medeiros & Luis M. Viceira, 2010.
"Global Currency Hedging,"
Journal of Finance,
American Finance Association, vol. 65(1), pages 87-121, 02.
- John Y. Campbell & Karine Serfaty-de Medeiros & Luis M. Viceira, 2007. "Global Currency Hedging," NBER Working Papers 13088, National Bureau of Economic Research, Inc.
- Viceira, Luis & Serfaty-de Medeiros, Karine & Campbell, John, 2009. "Global Currency Hedging," Scholarly Articles 3153308, Harvard University Department of Economics.
- Annette Vissing-Jorgensen, 2002. "Limited Asset Market Participation and the Elasticity of Intertemporal Substitution," Journal of Political Economy, University of Chicago Press, vol. 110(4), pages 825-853, August.
- Joël Peress, 2004. "Wealth, Information Acquisition, and Portfolio Choice," Review of Financial Studies, Society for Financial Studies, vol. 17(3), pages 879-914.
- Bernardo, Antonio E. & Judd, Kenneth L., 2000. "Asset market equilibrium with general tastes, returns, and informational asymmetries," Journal of Financial Markets, Elsevier, vol. 3(1), pages 17-43, February.
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