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International Journal of Academic Research in Business and Social Sciences

Open Access Journal

ISSN: 2222-6990

The Relations between Volatilities and the Extreme Stock Price Declines: A Test in the Japanese Equity Markets

Chikashi Tsuji

http://dx.doi.org/10.6007/IJARBSS/v2-i4/9057

Open access

The objective of this paper is to examine the predictability of the forecast volatilities for the extreme stock price declines in the Japanese stock markets. Our empirical tests reveal that the forecast volatilities from the Generalized Autoregressive Conditional Heteroskedasticity (GARCH) model and the GARCH-in-mean model statistically significantly predict the extreme stock price declines in the Japanese stock markets. Further, we also clarify that the forecast power of the volatilities from the GARCH-in-mean model is stronger than that from the standard GARCH model.

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