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    Please use this identifier to cite or link to this item: http://tkuir.lib.tku.edu.tw:8080/dspace/handle/987654321/102180

    Title: 匯率報酬率的非預期衝擊對股價報酬率平均數與波動性的影響
    Other Titles: The impacts of the unexpected shocks of exchange rate's return on the expectation and volatility of stock returns
    Authors: 梁美玲;Liang, Mei-Ling
    Contributors: 淡江大學管理科學學系企業經營碩士在職專班
    莊忠柱;Chuang, Chung-Chu
    Keywords: 匯率;非預期衝擊;股價報酬率;股價報酬率波動性;EGARCH模型;Exchange rate;unexpected shocks;stock returns;volatility of stock returns;EGARCH model
    Date: 2014
    Issue Date: 2015-05-04 09:49:23 (UTC+8)
    Abstract: 本文以1998年4月至2013年12月的美元對新台幣匯率與台灣股價月資料為研究對象,先以單變量ARMA模型來捕捉新台幣對美元匯率的非預期衝擊,再利用單變量EGARCH模型探討新台幣對美元匯率的非預期衝擊對股價報酬率平均數與波動性的影響。
    This paper takes the monthly data of the exchange rate of USD to NTD and Taiwan Stock price as research object from April, 1998 to December, 2013 . A univariate ARMA model is used to capture the unexpected shocks of exchange rate, and then the univariate EGARCH model is used to investigate the effects of the unexpected shocks of the exchange rate on the mean and volatility of stock returns.
    The empirical results show that the positive unexpected shocks of the exchange rate have negative impact on the mean of the Taiwan stock returns, and unexpected negative shocks of exchange rate have positive impact on the mean of the Taiwan stock returns. In addition, neither positive nor negative unexpected shocks of the exchange rate doesn’t offect the volatility of the Taiwan stock returns. Furthermore, the effects of the negative stock returns shocks on the volatility of stock returns are more than the effects of the positive ones. The empirical results can provide references to the investors for the evaluations of stock price, portfolio construction and risk management.
    Appears in Collections:[管理科學學系暨研究所] 學位論文

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