A Disaggregated Analysis of Movements in East Asian Regional Stock Volatility

Stephen J. Sault
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Stephen J. Sault: School of Finance and Applied Statistics, Faculty of Economics and Commerce, Australian National University, Canberra, ACT, 0200.

Australian Journal of Management, 2007, vol. 32, issue 2, 251-270

Abstract: In the absence of comprehensive evidence regarding disaggregated volatility and correlations, this paper applies a disaggregated approach to examine these characteristics in the East Asia region. Testing commences with an examination of portfolio risk faced by an East Asian investor with the application and extension of the models advanced by Campbell, Lettau, Malkiel and Xu (2001) to a portfolio of East Asian stocks. Thereafter, we identify diversification benefits accruing to investors expanding their portfolio composition beyond Australian securities (Sault 2005) to include stocks within the East Asia region. Testing reveals that an increase in the geographical scope of the investment opportunity set is coupled with decreases in mean levels of volatility and correlations. Further, investors holding this regionally diversified portfolio are rewarded by reduced correlations during times of increased volatility, highlighting the benefits of wider-reaching diversification.

Keywords: VOLATILITY; DISAGGREGATION OF VOLATILITY; CORRELATION; DIVERSIFICATION BENEFITS (search for similar items in EconPapers)
Date: 2007
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Persistent link: https://EconPapers.repec.org/RePEc:sae:ausman:v:32:y:2007:i:2:p:251-270

DOI: 10.1177/031289620703200205

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