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Dependence structure of risk factors and diversification effects

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Author Info
Chen Zou
Abstract

In this paper, we study the aggregated risk from dependent risk factors under the multivariate Extreme Value theory (EVT) framework. We consider the heavy-tailness of the risk factors as well a non-parametric tail dependence structure. This allows a large scope of models on the dependency. We assess the Value-at-Risk of a diversified portfolio constructed from dependent risk factors. Moreover, we examine the diversification effects under this setup.

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Paper provided by Netherlands Central Bank, Research Department in its series DNB Working Papers with number 219.

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Date of creation: Jul 2009
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Handle: RePEc:dnb:dnbwpp:219

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Keywords: Aggregated risk; diversification effect; multivariate Extreme Value Theory;

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  2. Dennis W. Jansen, 2001. "Limited Downside Risk In Portfolio Selection Among U.S. And Pacific Basin Equities," International Economic Journal, Korean International Economic Association, vol. 15(4), pages 1-22, December. [Downloadable!] (restricted)
  3. Embrechts, Paul & Neslehová, Johanna & Wüthrich, Mario V., 2009. "Additivity properties for Value-at-Risk under Archimedean dependence and heavy-tailedness," Insurance: Mathematics and Economics, Elsevier, vol. 44(2), pages 164-169, April. [Downloadable!] (restricted)
  4. Namwon Hyung, 2005. "Portfolio Diversification Effects of Downside Risk," Journal of Financial Econometrics, Oxford University Press, vol. 3(1), pages 107-125. [Downloadable!] (restricted)
  5. Ibragimov, Rustam & Walden, Johan, 2008. "Portfolio diversification under local and moderate deviations from power laws," Insurance: Mathematics and Economics, Elsevier, vol. 42(2), pages 594-599, April. [Downloadable!] (restricted)
  6. Jansen, Dennis W. & Koedijk, Kees G. & de Vries, Casper G., 2000. "Portfolio selection with limited downside risk," Journal of Empirical Finance, Elsevier, vol. 7(3-4), pages 247-269, November. [Downloadable!] (restricted)
  7. Jansen, Dennis W & de Vries, Casper G, 1991. "On the Frequency of Large Stock Returns: Putting Booms and Busts into Perspective," The Review of Economics and Statistics, MIT Press, vol. 73(1), pages 18-24, February. [Downloadable!] (restricted)
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  8. Hyung, Namwon & de Vries, Casper G., 2007. "Portfolio selection with heavy tails," Journal of Empirical Finance, Elsevier, vol. 14(3), pages 383-400, June. [Downloadable!] (restricted)
  9. Ser-Huang Poon, 2004. "Extreme Value Dependence in Financial Markets: Diagnostics, Models, and Financial Implications," Review of Financial Studies, Oxford University Press for Society for Financial Studies, vol. 17(2), pages 581-610. [Downloadable!] (restricted)
  10. Susmel, Raul, 2001. "Extreme observations and diversification in Latin American emerging equity markets," Journal of International Money and Finance, Elsevier, vol. 20(7), pages 971-986, December. [Downloadable!] (restricted)
  11. Arzac, Enrique R. & Bawa, Vijay S., 1977. "Portfolio choice and equilibrium in capital markets with safety-first investors," Journal of Financial Economics, Elsevier, vol. 4(3), pages 277-288, May. [Downloadable!] (restricted)
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