本研究依據Fried, Lovell, Schmidt and Yaisawarng (2002)提出的三階段資料包絡分析法，來評估2004年-2006年大中華地區59家銀行的績效表現，其中範圍包含4個國家：台灣、香港、新加坡以及中國大陸。這些銀行本身，即存在許多不同的環境干擾和條件差異，加上跨國的比較，又使他們之間的差異化更加明顯。所以，我們選取了重要的環境變數加以調整，在我們第二階段SFA分析，也證明了這些環境變數的確會影響銀行的效率。當我們區分出營運環境和統計干擾的影響，並調整投入項，則可發現第一階段DEA的結果和第三階段DEA的結果有很大的差異。經由我們實證顯示，在經過環境變數的調整後，各國相對效率值的變動方向明顯不同，顯示在資料包絡分析法中，三階段的應用確實有其必要性，而且各國調整後的效率值，較能真正反映銀行的經營管理效率。

The study analyzes the efficiency of banking operations in Taiwan, Singapore, Hong Kong, and China between 2004 and 2006. It based on Fried, Lovell, Schmidt and Yaisawarng (2002) three-stage data envelopment analysis. There are many different environmental conditions between the banks, and cross-country comparison makes the difference more apparent. Therefore, we selected the key environmental variables to be adjusted. In our analysis of the second stage SFA, it proved that these environmental variables do affect the efficiency of banks. When we distinguish the operating environment and statistical interference, then adjust the input items, can be found the difference between the first stage DEA results and the third stage DEA results. The evidence shows that the three-stage application of data envelopment analysis is essential, and the value after adjusted can truly reflect the bank's operational efficiency.

中文文獻
陳盈秀（2002），台灣地區銀行業經營效率─三階段法之應用，淡江大學經濟學系應用經濟學碩士論文。
林建良（2003），環境變數調整後之銀行效率—Three stage approach，東吳大學經濟學系碩士論文。
杜珮宜（2004），台灣地區銀行合併效率之分析—三階段DEA模型之應用，國立中央大學產業經濟研究所碩士論文。
馬裕豐（2004），總體經濟指標與法制面影響銀行業經營績效之研究—DEA模型之應用，國立台北大學企業管理學系博士論文。
陳俊展（2004），兩岸銀行業生產力實證研究—CCD指數法與資料包絡分析法之應用，義守大學管理科學研究所碩士論文。
黃嘉齡（2005），銀行效率決定因素之實證研究—以台灣、香港、新加坡、南韓與日本為例，嶺東技術學院財務金融研究所碩士論文
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