學理上指出匯率變動必然會影響任何實體或金融資產的價值,然而實證卻發現只有少數公司具有顯著的外匯風險,形成所謂的外匯風險迷思現象。為了與過去研究常使用的資本市場法比較,本文利用現金流量法來重新檢驗64學理上指出匯率變動必然會影響任何實體或金融資產的價值,然而實證卻發現只有少數公司具有顯著的外匯風險,形成所謂的外匯風險迷思現象。為了與過去研究常使用的資本市場法比較,本文利用現金流量法來重新檢驗64家台灣上市公司的外匯風險樣貌。實證結果發現具有顯著外匯風險的樣本比例為51.56%,其不僅高出過去文獻的比例甚多,同時意味著外匯風險迷思現象可以藉由研究方法得到改善。本文進一步分析外匯風險與公司特性變數之間的關連性,實證結果發現短期外匯風險主要是受到公司規模大小的影響,而長期外匯風險則是受到外銷比率高低的左右,其顯示出長短期外匯風險的決定因素有明顯的差異性。家台灣上市公司的外匯風險樣貌。實證結果發現具有顯著外匯風險的樣本比例為51.56%,其不僅高出過去文獻的比例甚多,同時意味著外匯風險迷思現象可以藉由研究方法得到改善。本文進一步分析外匯風險與公司特性變數之間的關連性,實證結果發現短期外匯風險主要是受到公司規模大小的影響,而長期外匯風險則是受到外銷比率高低的左右,其顯示出長短期外匯風險的決定因素有明顯的差異性。
Theoretical research suggests that changes in exchange rates should affect the value of any physical or financial asset. However, empirical research on nonfinancial firms typically produces fewer significant exposure estimates than researchers expects, giving rise to a situation known as "the exposure puzzle". This paper reexamines the exposure phenomenon for 64 Taiwan listed multinationals by focusing on cash flow approach, instead of capital market approach usually used in previous studies. This paper finds significant exposures in 51.56% of the cases, a level that is higher than in prior research. This finding suggests that the exposure puzzle may result from the inadequate model. This paper further explores the link between exposure and firm characteristics. The results demonstrate that the larger firms have higher short-term exchange rate exposure, while the firms with higher foreign involvement have higher long-term exchange rate exposure.