Do Time-Varying Covariances, Volatility Comovement and Spillover Matter?
AbstractFinancial markets and their respective assets are so intertwined; analyzing any single market in isolation ignores important information. We investigate whether time varying volatility comovement and spillover impact the true variance-covariance matrix under a time-varying correlation set up. Statistically significant volatility spillover and comovement between US, UK and Japan is found. To demonstrate the importance of modelling volatility comovement and spillover, we look at a simple portfolio optimization application. A utility based comparison is used to evaluate the economic performance of the portfolio which considers time varying correlation with volatility comovement and spillover. This paper shows that a portfolio strategy incorporating time-varying correlation with asymmetric volatility comovement and spillover outperforms the constant correlation model without comovement and spillover by yielding the highest level of wealth and utility difference of up to 250 basis points.
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Bibliographic InfoPaper provided by EconWPA in its series Finance with number 0509002.
Length: 28 pages
Date of creation: 04 Sep 2005
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Find related papers by JEL classification:
- C32 - Mathematical and Quantitative Methods - - Multiple or Simultaneous Equation Models; Multiple Variables - - - Time-Series Models; Dynamic Quantile Regressions; Dynamic Treatment Effect Models
- F3 - International Economics - - International Finance
- G15 - Financial Economics - - General Financial Markets - - - International Financial Markets
This paper has been announced in the following NEP Reports:
- NEP-ALL-2005-11-09 (All new papers)
- NEP-ETS-2005-11-09 (Econometric Time Series)
- NEP-FIN-2005-11-09 (Finance)
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- Laurent E. Calvet & Adlai J. Fisher & Samuel B. Thompson, 2004.
"Volatility Comovement: A Multifrequency Approach,"
NBER Technical Working Papers
0300, National Bureau of Economic Research, Inc.
- Fratzscher, M., 2001.
"Financial Market Integration in Europe: On the Effects of EMU on Stock Markets,"
48, Quebec a Montreal - Recherche en gestion.
- Fratzscher, Marcel, 2002. "Financial Market Integration in Europe: On the Effects of EMU on Stock Markets," International Journal of Finance & Economics, John Wiley & Sons, Ltd., vol. 7(3), pages 165-93, July.
- Fratzscher, Marcel, 2001. "Financial market integration in Europe: on the effects of EMU on stock markets," Working Paper Series 0048, European Central Bank.
- Lorenzo Cappiello & Robert F. Engle & Kevin Sheppard, 2006.
"Asymmetric Dynamics in the Correlations of Global Equity and Bond Returns,"
Journal of Financial Econometrics,
Society for Financial Econometrics, vol. 4(4), pages 537-572.
- Sheppard, Kevin & Cappiello, Lorenzo & Engle, Robert F., 2003. "Asymmetric dynamics in the correlations of global equity and bond returns," Working Paper Series 0204, European Central Bank.
- Bae, Kee-Hong & Andrew Karolyi, G., 1995.
"Good news, band news and international spilovers of stock return volatility between Japan and the U.S,"
Pacific-Basin Finance Journal,
Elsevier, vol. 3(1), pages 144-144, May.
- Bae, Kee-Hong & Andrew Karolyi, G., 1994. "Good news, bad news and international spillovers of stock return volatility between Japan and the U.S," Pacific-Basin Finance Journal, Elsevier, vol. 2(4), pages 405-438, December.
- Fleming, Jeff & Kirby, Chris & Ostdiek, Barbara, 2003. "The economic value of volatility timing using "realized" volatility," Journal of Financial Economics, Elsevier, vol. 67(3), pages 473-509, March.
- King, Mervyn A & Wadhwani, Sushil, 1990.
"Transmission of Volatility between Stock Markets,"
Review of Financial Studies,
Society for Financial Studies, vol. 3(1), pages 5-33.
- Koutmos, Gregory & Booth, G Geoffrey, 1995. "Asymmetric volatility transmission in international stock markets," Journal of International Money and Finance, Elsevier, vol. 14(6), pages 747-762, December.
- Bollerslev, Tim, 1990. "Modelling the Coherence in Short-run Nominal Exchange Rates: A Multivariate Generalized ARCH Model," The Review of Economics and Statistics, MIT Press, vol. 72(3), pages 498-505, August.
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