本文主要在探討景氣循環、公司治理及財務指標對台灣地區金控公司股價報酬之影響。研究期間為2002年第四季至2009年第四季,選取14家上市櫃金控公司共計377筆之季資料。研究程序是先以規模效應、市價淨值比、本益比、資產報酬率等財務指標以及公司治理指標變數與景氣循環指標變數,先進行共線性檢定,再對金控個股報酬進行逐步迴歸估計,並以最小Mallows Cp值為最佳模型選定標準,取得顯著之自變數組合後,再將這些變數組合代入迴歸方程式進行最終估計。研究結果發現影響台灣地區金控公司股價報酬之因素如下:(一)在財務指標方面,「市價淨值比」對股價報酬呈正向顯著關係。(二)在公司治理指標方面,「董監持股比率」對股價報酬呈負向顯著關係。(三)在景氣循環指標方面,「景氣對策信號」、「實質生產毛額」對股價報酬呈負向顯著關係。(四)「規模效應」對股價報酬呈正向顯著關係。
This study focuses on the impacts of the financial indicators, the business cycle, and corporate governance on stocks returns for the listed financial holding companies in Taiwan. 14 financial holding companies with quarterly data ranging from 2002 to 2009 were collected. Collinearity test was used to detect the interrelationships among independent variables, such as size effect, PBR, PE ratio and other financial indicators, corporate governance variables and indicators of business cycle variables. Stepwise regression analysis was adopted to search for the optimal independent variables and the smallest Mallows Cp was used for selection of the best model. The results found that: (1) PBR is significantly positively related to stock returns. (2) Collateralized shares is significantly negatively related to stock returns. (3) The Business Monitoring Indicator and GDP are significantly negatively related to stock returns. (4) Size effect is significantly positively related to stock returns.