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  • 學位論文

匯率曝露對企業價值的影響-以中國概念股為例

The Impact of Exchange Rate Exposure on Firm’s Value–Evidences from Listed China-concept Stocks in Taiwan

指導教授 : 李見發 嚴宗銘
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摘要


從2005年開始,中國大陸已竄升為台灣進出口貿易國家貿易總額的首位,因此本論文針對台灣上市公司之中國概念股為研究對象,探討新台幣對人民幣匯率曝露對企業價值的影響情形作實證研究。本研究以股票報酬率作為公司價值的代理變數,探討2007年末全球金融危機前後期間,企業價值受匯率變動影響程度。其中採用傳統線性迴歸模型(Classical Linear Regression Model,簡稱CLRM)及及一般化自我迴歸異質條件變異數模型(Generalized Autoregressive Conditional Heteroskedasticity,簡稱GARCH模型),分別衡量個別企業的全期、前期、後期的匯率曝露程度。並且採用緃橫資料迴歸分析法來探討影響匯率曝露決定之因子:公司規模、出口比例、速動比率及長期負債比率。   實證結果顯示,公司的匯率曝露係數平均而言為正數居多,符合台灣為一出口導向的國家。在面對全球金融危機,企業經理人更重視衍生性金融商品的操作,以降低企業營運時的匯率波動風險。匯率曝露決定因子中,長期負債比率愈高的公司,匯率曝露愈大。然而,公司規模、出口比例及速動比率對企業匯率曝露之影響並不顯著。 關鍵詞:中國概念股、匯率曝露、一般化自我迴歸異質條件變異數模型、緃橫資料迴歸分析法

並列摘要


In the present study, we investigate the impact of the NTD/CNY exchange rate exposure on firm’s value by employing the listed china-concept stocks in Taiwan. The samples are divided into two sub periods with Global Financial Crisis. This study intends to estimate Taiwanese 30 corporations’ exchange rate exposure by using CLRM and GARCH model. We also use panel data analysis to explore the determinants of exchange rate exposure such as firm size, export ratio, quick ratio, and long-term debt ratio. The main findings of the present study are summarized as follows. On the average, Taiwanese corporations’ stock returns have significant positive economic exposure effects. This notion matches Taiwan as export-oriented nation. After Global Financial Crisis, company''s manager pays attention to the operation of the financial derivatives even more. Firms with long-term debt ratio tend to have much higher exposure to exchange rate risk. However, the size, quick ratio, and the export ratio of corporation have little a role on the firm’s exchange rate. Keywords:China-concept Stocks, Exchange Rate Exposures, GARCH, Panel Data

參考文獻


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