An Exploration of the Time-varying Beta of the International Capital Asset Pricing Model: The Case of the Japanese and the Other Asia-Pacific Stock Markets

Chikashi Tsuji

Abstract


This study clarifies the state of dynamic evolution of the international CAPM betas for Asia Pacific (excluding Japan) and Japanese stock returns: first, both for Asia Pacific and Japanese stock markets, the time-invariant international CAPM beta values are not high. Second, over the period from July 2, 1990 to May 30, 2016, for Asia Pacific stock markets, the time-varying international CAPM betas gradually increase; while for the Japanese market, the time-varying international CAPM betas gradually decrease. We also find that the international time-varying CAPM betas for Japan are recently lower than those for Asia Pacific markets, thus, in the global equity investments, Japanese equities are more useful to obtain the diversification effects than the other Asia Pacific equities.


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DOI: https://doi.org/10.5430/afr.v6n2p86

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Accounting and Finance Research
ISSN 1927-5986 (Print)   ISSN 1927-5994 (Online)

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