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Costly Portfolio Adjustment

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  • Yosef Bonaparte
  • Russell Cooper

Abstract

This paper studies the dynamic optimization problem of a household when portfolio adjustment is costly. The analysis is motivated by the observation that on a monthly basis, less than 10% of stockholders typically adjust their portfolio of common stocks. We use this, and related observations, to estimate the parameters of household preferences and portfolio adjustment costs. We find significant adjustment costs, beyond the direct costs of buying and selling assets. These adjustment costs imply that inferences drawn about household risk aversion and the elasticity of intertemporal substitution are biased: household risk aversion is lower compared to other estimates and it is not equal to the inverse of the elasticity of intertemporal substitution.

Suggested Citation

  • Yosef Bonaparte & Russell Cooper, 2010. "Costly Portfolio Adjustment," Economics Working Papers ECO2010/19, European University Institute.
  • Handle: RePEc:eui:euiwps:eco2010/19
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    File URL: http://cadmus.eui.eu/dspace/bitstream/1814/13794/1/ECO2010_19.pdf
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    References listed on IDEAS

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    1. Rust, John, 1987. "Optimal Replacement of GMC Bus Engines: An Empirical Model of Harold Zurcher," Econometrica, Econometric Society, vol. 55(5), pages 999-1033, September.
    2. repec:fth:jonhop:390 is not listed on IDEAS
    3. Hansen, Lars Peter & Singleton, Kenneth J, 1983. "Stochastic Consumption, Risk Aversion, and the Temporal Behavior of Asset Returns," Journal of Political Economy, University of Chicago Press, vol. 91(2), pages 249-265, April.
    4. Carroll Christopher Dixon, 2001. "Death to the Log-Linearized Consumption Euler Equation! (And Very Poor Health to the Second-Order Approximation)," The B.E. Journal of Macroeconomics, De Gruyter, vol. 1(1), pages 1-38, April.
    5. Russell Cooper & John C. Haltiwanger & Jonathan L. Willis, 2010. "Euler-Equation Estimation for Discrete Choice Models: A Capital Accumulation Application," NBER Working Papers 15675, National Bureau of Economic Research, Inc.
    6. Mankiw, N. Gregory & Zeldes, Stephen P., 1991. "The consumption of stockholders and nonstockholders," Journal of Financial Economics, Elsevier, vol. 29(1), pages 97-112, March.
    7. Hall, Robert E, 1988. "Intertemporal Substitution in Consumption," Journal of Political Economy, University of Chicago Press, vol. 96(2), pages 339-357, April.
    8. Heaton, John & Lucas, Deborah J, 1996. "Evaluating the Effects of Incomplete Markets on Risk Sharing and Asset Pricing," Journal of Political Economy, University of Chicago Press, vol. 104(3), pages 443-487, June.
    9. Hansen, Lars Peter & Singleton, Kenneth J, 1982. "Generalized Instrumental Variables Estimation of Nonlinear Rational Expectations Models," Econometrica, Econometric Society, vol. 50(5), pages 1269-1286, September.
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    Cited by:

    1. Luigi Guiso & Paola Sapienza & Luigi Zingales, 2013. "Time Varying Risk Aversion," NBER Working Papers 19284, National Bureau of Economic Research, Inc.

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