A Factor-Garch Approach to Conditional Risk and Return in Banking Stocks: Comparison of Industry Effect in Taiwan, Hong Kong, and Mainland China
33 Pages Posted: 13 Jan 2004
Abstract
This paper uses GARCH (1,1)-M modelling to examine the relationships between the systematic risk and the stock return in the banking industry in Taiwan, Hong Kong, and China from 1995 through 2003. The banking industry comprises the large banks and the small-medium size banks. A comparison of industry effect in those three countries is undertaken.
For Taiwan, the industry effect shows that the systematic risk and the stock return both have a significantly positive relationship to the banking industry. In addition, the large banks and small-medium size banks demonstrate industry effects. However small-medium size banks have a greater effect than large banks. After the Asian Financial Crisis of 1997, the effect of lagged error terms became significant. Also, the effects of the systematic risk on the stock return for the banking industry are diminishing. This indicates that the systematic risk is lower in Taiwan's banking industry after the Asian Financial Crisis.
For China, the industry effect shows that the systematic risk and the stock return both also have a significantly positive relationship to the banking industry. However the large banks reveal a higher level of the industry effect. The impacts of conditional variances of the stock return on large banks as a group were significantly negative after the Asian Financial Crisis. In addition, the effects of the systematic risk on the stock return in the banking industry are rising. Nevertheless, the industry effect of the banking industry became lower after the Asian Financial Crisis.
For Hong Kong, the effect shows that the systematic risk and the stock return both have a significant relationship to the banking industry. Large banks have a greater effect than small-medium size banks, and the industry effect of the banking industry in Hong Kong increased after the Asian Financial Crisis.
Keywords: Industry Effect, Systematic Risk, Contagion, GARCH-M Model.
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