Sectoral equity returns and portfolio diversification opportunities across the GCC region

Balli, Faruk and Basher, Syed Abul and Jean Louis, Rosmy (2013): Sectoral equity returns and portfolio diversification opportunities across the GCC region.

Abstract

We examine the spillover effects of local and global shocks on Gulf Cooperation Council (GCC)-wide sector equity returns. We find the GCC-wide sector returns have asynchronous responses to global and regional shocks. Although the effects of these shocks differ in magnitude across individual GCC-wide sector returns, there is evidence that the GCC-wide sector equity markets are mostly driven by their own volatilities. For the basic materials, telecom and utility sectors, the effects of regional and global shocks are lower in magnitude in comparison to the rest of the GCC-wide sector indices. Applying a time-varying spillover model, we also indicate that the effect of global shocks on the volatility of GCC sector returns has been decreasing, whereas regional shocks have been affecting the sector indices with a positive and significant trend. We also document that portfolios diversified across GCC-wide sectors perform better than portfolios diversified across GCC national equity markets. To some extent, portfolios diversified with a mix of GCC-wide sector and national equities produce higher returns than portfolios made up of pure GCC national equity indices or GCC-wide sector indices.

• Item Type: MPRA Paper
• Language: English
• Keywords: GCC stock markets; Portfolio diversification; Sectoral equity indices
• Subjects: G - Financial Economics > G1 - General Financial Markets > G12 - Asset Pricing ; Trading Volume ; Bond Interest Rates; G - Financial Economics > G1 - General Financial Markets > G15 - International Financial Markets

References

Adjaoute, K. and Danthine, J.P. (2003). European financial integration and equity returns: A Theory-Based Assessment. In Gaspar, V. et al. (eds), The Transformation of the European Financial System. European Central Bank, Frankfurt.

Al-Khazali, O., Darrat, A.F. and Saad, M. (2006). Intra-regional integration of the GCC stock markets: The role of market liberalization, Applied Financial Economics 16, 1265-1272.

Bai, Z., Wang, K., Wong, W-K. (2006). Asset Performance Evaluation with the Mean-Variance Ratio. Singapore University Working Paper.

Baele, L., Ferrando, A., Hordahl, P., Krylova, E. and Monnet, C. (2004). Measuring financial integration in the Euro area, European Central Bank, Occasional Paper No. 14.

Baele, L. (2005). Volatility spillover effects in European equity markets, Journal of Financial and Quantitative Analysis 40, 373-401.

Bashar, Z. (2006). Wild oil prices, but brave stock markets! The case of Gulf Cooperation Council (GCC) stock markets, Operational Research 6, 145-162.

Bekaert, G. and Harvey, C.R. (1997). Emerging equity market volatility, Journal of Financial Economics 43, 29-77.

Bekaert, G., Harvey, C.R. and Ng, A. (2005). Market integration and contagion, Journal of Business 78, 39-69.

Benjelloun, H. (2009). Portfolio diversification: Evidence from Qatar and the UAE, International Journal of Economic Issues 2, 9-15.

Berndt, E.R., Hall, B.H., Hall, R.E. and Hausman, J.A. (1974). Estimation and inference in nonlinear structural models, Annals of Economics and Social Measurement 3, 653-666.

Bley, J. and Chen, K.H. (2006). Gulf Cooperation Council (GCC) stock markets: The dawn of a new era, Global Finance Journal 17, 75-91.

Bollerslev, T. (1986). Generalized autoregressive conditional heteroskedasticity, Journal of Econometrics 31, 307-327.

Engle, R.F. (1982). Autoregressive conditional heteroscedasticity with estimates of variance of United Kingdom inflation, Econometrica 50, 987-1008.

Engle R., Ng, V. and Rothschild, M. (1990). Asset pricing with a factor ARCH covariance structure: Empirical estimates for treasury bills, Journal of Econometrics 45, 213-237.

Fedorova, E. and Saleem, K. (2010). Volatility spillovers between stock and currency markets: Evidence from emerging eastern Europe, Czech Journal of Economics and Finance 60, 519-533.

Fratzscher, M. (2002). Financial market integration in Europe: on the effects of EMU on stock markets, International Journal of Finance and Economics 7, 165-193.

Gorton, G. and Rouwenhorst, K.G. (2006). Facts and fantasies about commodity futures, Financial Analysts Journal 62, 47-68.

Hardouvelis, G., Malliaropulos, D. and Priestley, R. (2006). EMU and European stock market integration, Journal of Business 79, 365-392.

Hammoudeh, S.M. and Aleisa, E. (2004). Dynamic relationship among GCC stock markets and NYMEX oil futures, Contemporary Economic Policy 22, 250-–269

Hammoudeh, S.M. and Choi, K. (2007). Characteristic of permanent and transitory returns in oil-sensitive emerging stock markets: The case of the GCC countries, Journal of International Financial Markets, Institutions and Money 17, 231-245.

Hammoudeh, S.M., Yuan, Y. and McAleer, M. (2009). Shock and volatility spillovers among equity sectors of the Gulf Arab stock markets, Quarterly Review of Economics and Finance 49, 829-842.

Hammoudeh, S., Santos, P.A. and Al-Hassan, A. (2012). Downside risk management and VaR-based optimal portfolios for precious metals, oil and stocks, North American Journal of Economics and Finance (in press).

Huberman, S.L. and Kandel, S. (1987). Mean-variance spanning, Journal of Finance 42, 873-888.

Jarque, C.M. and Bera, A.K. (1980). Efficient tests for normality, Economics Letters 6, 255-259.

Jobson, J.D. and Korkie, B. (1981). Performance hypothesis testing with the Sharpe and Treynor measures, Journal of Finance 36, 889-908.

Kim, S.J., Moshirian, F. and Wu, E. (2005). Dynamic stock market integration driven by the European monetary union: An empirical analysis, Journal of Banking and Finance 29, 2475-2502.

King, M., Sentana, E. and Wadhwani, S. (1994). Volatility and links between national stock markets, Econometrica 62, 901-933.

Lin, W., Engle, R.F. and Ito, T. (1994). Do bulls and bears move across borders? International transmission of stock returns and volatility, Review of Financial Studies 7, 507-538.

Ljung, G.M. and Box, G.E.P. (1978). On a measure of lack of fit in time-series models, Biometrika 65, 297-303.

Memmel, C. (2003). Performance hypothesis testing with the Sharpe ratio, Finance Letters 1, 21-23.

Malik, F. and Hammoudeh, S. (2007). Shock and volatility transmission in the oil, US and Gulf equity markets, International Review of Economics and Finance 16, 357-368.

Markowitz, H.M. (1952). Portfolio selection, Journal of Finance 7, 77-91.

Moerman, G.A. (2008). Diversification in Euro area stock markets: Country versus industry, Journal of International Money and Finance 27, 1122-1134.

Ng, A. (2000). Volatility spillover effects from Japan and the US to the Pacific-Basin, Journal of International Money and Finance 19, 207-233.

Onour, I. (2007). Impact of oil price volatility on Gulf Cooperation Council stock markets' return, OPEC Energy Review 31, 171-189.

Schwert, G.W. (1989). Why does stock market volatility change over time? Journal of Finance 44, 1115-1153.

Stulz, R.M. and Karolyi, G.A. (2001). Are financial assets priced locally or globally? In G.M. Constantinides, M. Harris, R.M. Stulz (eds) Handbook of the Economics of Finance, Vol. 1, Part B, 975-1020.

Yilmaz, K. (2010). Return and volatility Spillovers among the east Asian equity markets, Journal of Asian Economics 21, 304-313.