| Summary: | 碩士 === 國立政治大學 === 經濟學系 === 100 === This study investigates the various types of stock in Taiwan under the different monetary unit, between risk and return trade-off relations, in order to investigate the characteristics of various types of shares in Taiwan in the face of risk situations. We consider the impact of market risk and country-special risk, the risks of market risk for the economic situation; country risk represents a country risk, the risks such as political, economic, social and other factors . We have empirical research done by the concept of the capital asset pricing model, and the conditions covariance estimated by the diagonal BEKK model.We first estimate the relationship between market risk , and then add the impact of country risk factors, and compare the estimation results under different monetary unit, and this results in representing the exchange-rate risk.
The empirical results show that the various stocks in the face of risk response is inconsistent, which financial stocks for the greatest impact on stocks are subject to risks, and the market risk coefficient is significantly negative, difference the theory. Other stocks in the relationship between risk and returns, positive and negative results, so we can learn to face the same risks under various types of shares have different reactions, and in a different currency unit the results also different, it also shows the existence of exchange-rate risk. The study also shows the country risk coefficient of various types of shares were weak effects. This research to help investors in the face of risk, by the reactions of all kinds shares the risk and return relationship to select the optimal portfolio.
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