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Time-varying market price of risk in the CAPM: Approaches, empirical evidence and implications

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  • Hafner, Christian M.
  • Herwartz, Helmut

Abstract

Time-varying risk premia traditionally have been associated with the empirical fact that conditional second moments are time-varying. This paper additionally examines another possible source for time-varying risk premia, namely the market price of risk (lambda). For utility functions that do not imply constant risk aversion measures, the market price of risk will in general change over time. We provide empirical evidence for the German stock market in a bivariate GARCH-M framework using alternative specifications for lambda. The results indicate that a model with lambda being a function of typical volatility measures performs best for most series. To facilitate the interpretation of the results, we plot impulse response functions of the risk premia. --

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Bibliographic Info

Paper provided by Humboldt University of Berlin, Interdisciplinary Research Project 373: Quantification and Simulation of Economic Processes in its series SFB 373 Discussion Papers with number 1999,22.

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Date of creation: 1999
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Handle: RePEc:zbw:sfb373:199922

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Related research

Keywords: impulse response analysis; Market price of risk; Multivariate GARCH-Models; CAPM;

References

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  1. Engle, Robert F. & Kroner, Kenneth F., 1995. "Multivariate Simultaneous Generalized ARCH," Econometric Theory, Cambridge University Press, vol. 11(01), pages 122-150, February.
  2. Bollerslev, Tim, 1986. "Generalized autoregressive conditional heteroskedasticity," Journal of Econometrics, Elsevier, vol. 31(3), pages 307-327, April.
  3. Braun, Phillip A & Nelson, Daniel B & Sunier, Alain M, 1995. " Good News, Bad News, Volatility, and Betas," Journal of Finance, American Finance Association, vol. 50(5), pages 1575-1603, December.
  4. Koop, Gary & Pesaran, M. Hashem & Potter, Simon M., 1996. "Impulse response analysis in nonlinear multivariate models," Journal of Econometrics, Elsevier, vol. 74(1), pages 119-147, September.
  5. Baillie, Richard T. & Bollerslev, Tim & Mikkelsen, Hans Ole, 1996. "Fractionally integrated generalized autoregressive conditional heteroskedasticity," Journal of Econometrics, Elsevier, vol. 74(1), pages 3-30, September.
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Cited by:
  1. Anton Andriyashin & Wolfgang Härdle & Roman Timofeev, 2008. "Recursive Portfolio Selection with Decision Trees," SFB 649 Discussion Papers SFB649DP2008-009, Sonderforschungsbereich 649, Humboldt University, Berlin, Germany.
  2. Massimiliano Caporin & Michael McAleer, 2008. "Thresholds, News Impact Surfaces and Dynamic Asymmetric Multivariate GARCH," "Marco Fanno" Working Papers 0064, Dipartimento di Scienze Economiche "Marco Fanno".
  3. Sébastien Laurent & Luc Bauwens & Jeroen V. K. Rombouts, 2006. "Multivariate GARCH models: a survey," Journal of Applied Econometrics, John Wiley & Sons, Ltd., vol. 21(1), pages 79-109.
  4. Schrimpf, Andreas & Schröder, Michael & Stehle, Richard, 2006. "Evaluating conditional asset pricing models for the German stock market," ZEW Discussion Papers 06-43, ZEW - Zentrum für Europäische Wirtschaftsforschung / Center for European Economic Research.

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