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  • 學位論文

銀行成本效率與不良債權之關聯性研究-分位數迴歸之應用

A Study on the Relationship between Problem Loans and Cost Efficiency of the Banks: Quantile Regression Analysis

指導教授 : 趙莊敏

摘要


銀行業,是台灣金融體系之主體,由於銀行業較一般其他產業具有相對較高的財務槓桿作用,因此它在現今經濟社會中扮演著增進資金流通、振興產業經營與促進整體經濟發展的重要角色,故其經營績效對一國之經濟發展與國民生活福祉,影響甚鉅。而國內銀行目前面對這樣競爭激烈的金融環境,其經營效率如何,又有哪些因子會對銀行經營的效率造成影響,為一重要的議題,所以,探討本國一般銀行在經營績效上是否具有經濟效率,以及找出影響銀行經營效率的因子,一向為各方學者研究之主題。 而近年來,隨著我國加入WTO後,商業銀行處處林立,競爭益發激烈,隨著各家銀行搶衝業績,在2000年前後爆發了大量的逾放過高及呆帳問題,曾引起國內一度恐慌,雖近年來在政府及民間努力下呆帳問題逐漸打消的同時,卻因現金卡與信用卡的浮濫發卡,2005年底又爆發了驚動社會的雙卡問題。 因此,在本研究中,將嘗試探討銀行之不良債權與成本效率之間的關係。但與以往學者對銀行效率之研究有所不同的是,本研究欲探究在高低不同效率水準之下的銀行,其影響效率之因素有何差異。因此,本研究分兩階段,第一階段先使用「隨機邊界法(SFA)」估計本國商業銀行之成本效率,第二階段使用「分位數迴歸分析(Quantile Regression)」,藉以檢測在效率分配中座落於高低不同效率水準之間的銀行,各種不同影響因素對銀行成本效率之相關性。 實証結果發現,效率水準低的銀行會因過於浮濫的放款,帶來逾期放款的增加,並使一時的成本效率帶來提升,但最終卻因過多逾期放款無法回收,轉為催收款後,使得催收款比率上升,反而壓低其成本效率,造成其效率低落。另外,對於效率水準愈高的銀行,其報酬率的提升將會使得其成本效率帶來提升,表示效率好的銀行其特色在於能夠一方面追求獲利性的同時,對其資產品質的控制加以兼顧。此外,本研究中亦發現,民國79年後新成立之銀行其成本效率比之79年前即已成立之較舊銀行低落。並且顯示我國商業銀行大多有分行數過多的現象。最後,在結果中也顯示,銀行股權集中度與董監事規模會對成本效率造成影響,因此銀行應減少內部董監事持股比例,及降低內部董監事規模,以提高其成本效率。

並列摘要


Banking, is the main structure of the Taiwan’s financial system. Because to compare with generally other industries, the banking has opposite higher finance leverage, so it plays an important role of circulate funds, develop the industry management and promote the whole economy develop in the economic society. In recent years, along with after Taiwan joined WTO, the commercial bank established in great quantities, the competition is also more and more vigorous. Each bank take concentrates on increasing an accomplishment, and then in 2000, broke out the problem of a great deal of over problem loans. And Becausethe cash card and credit card circulate excessively, in 2005, produced more unperforming debt problems. When domestic banks faces vigorous environment of such competition currently, how efficiency they are? and which factors to will bring influence to the management efficiency of the bank? this is an important subject. Therefore, in this study, we try to study the relations between bank's problem loans and cost efficiency. The different from the former study is that, this study plans to find that, banks in different efficiency level, the factor of the influence efficiency has what difference. This study is divided into two stages, the first stage, use the "Stochastic Frontier Approach", to calculate the cost efficiency of commercial banks, and in the second stage, we use the "Quantile Regression", to measure in defferent efficiency level, how the relationships between efficiency influence factors and banks' cost efficiency. In our result, we find that of the bank of efficiency high level, after it's return rate increase, it will make it's cost efficiency bring to increase, this is the main reason why they usually keep the efficiency in high level. And of lower banks of the efficiency level , because of they excessive loan too often,would cause the problem loans increase, and in the same time make the cost efficiency rise, but in the end will making the cost efficiency reduce because of that the excessived problem loans can't recover. This is main reason why their cost efficiency low.

參考文獻


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被引用紀錄


王凱律(2006)。產業集中度與共同基金績效之關聯性-以分位數迴歸模型探討〔碩士論文,國立臺北科技大學〕。華藝線上圖書館。https://doi.org/10.6841/NTUT.2006.00158

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