臺灣博碩士論文加值系統

過去的研究中多半是 CEO 過度自信連結公司財務決策，又或是將常用於衡量銀行業競爭力的 Lerner Index 連結穩定性及績效方面，較少文獻將 CEO 過度自信與 Lerner Index 當作公司效率的指標結合在一起進行探討，本篇論文主要探討台灣銀行業從 2005 年至 2021 年的樣本，想觀察台灣銀行業的經理人(CEO)，是否會因為他們的過度自信而對該產業公司的效率存在影響，並將銀行本身特徵以及公司治理特徵納入模型中考量。
結果顯示 CEO 過度自信程度越高會造成公司效率的下降，顯示過度自信的特徵會使得 CEO 過於相信自身的能力，進而導致一些扭曲的策略，而高估公司未來的獲利卻又在成本方面低估，也因此公司的效率降低。
另外藉由納入銀行業特徵以及公司治理特徵，發現銀行業特徵相較於公司治理特徵影響效率更為明顯。倘若公司規模或是資產報酬率越高，則該家公司的效率就會越高；一家銀行負債比率越高，會造成效率的負面影響，原因來自於公司承擔過多風險，可能會無法達到穩健經營的目標，進而使效率降低。

Most prior studies investigating the impact of CEO overconfidence focused on corporate financial decision-making. On the other hand, most banking studies related firm competitive power to firm performance or market stability. Very few studies to date examined the interaction between CEO overconfidence and firm competitive power/efficiency, which is proxied by non-structure measures, such as Lerner Index. The aim of this thesis use a sample of Taiwan's banks during 2005 to 2021 to investigate whether the extent of CEOs overconfidence of Taiwan's banks will affect the firm efficiency proxied by Lerner index by controlling for bank characteristics and corporate governance.
The results show that the higher the degree of CEO overconfidence, the lower the efficiency of the company. It shows that the characteristics of overconfidence will make the CEO overconfident in his own ability, which will lead to some distorted strategies, while overestimating the company's future profits but underestimating the cost , so the efficiency of the company decreases.
In addition, it is also found that the characteristics of the banking industry affect the efficiency more significantly than the characteristics of corporate governance. If the company's scale or return on assets is higher, the company's efficiency will be higher; a bank's higher debt ratio will have a negative impact on efficiency. The reason is that the company may not be able to operate stably because it takes too many risks.

第一章 緒論
1.1 研究背景及動機----------------------------------------------------1
1.2 研究目的----------------------------------------------------------3
第二章 文獻回顧與假說建立
2.1 過度自信----------------------------------------------------------4
2.2 以 Lerner Index 衡量效率------------------------------------------8
2.3 過度自信與公司效率-----------------------------------------------10
第三章 研究方法
3.1 研究樣本與資料來源-----------------------------------------------11
3.2 研究變數定義及衡量-----------------------------------------------11
3.3 實證模型--------------------------------------------------------17
第四章 實證結果與分析
4.1 敘述性統計-------------------------------------------------------19
4.2 平均數差異檢定---------------------------------------------------21
4.3 相關性分析-------------------------------------------------------22
4.4 多元迴歸分析-----------------------------------------------------25
第五章 結論
5.1 研究結論---------------------------------------------------------32
5.2 研究限制與未來方向-----------------------------------------------33
參考文獻--------------------------------------------------------------34
附錄-----------------------------------------------------------------39

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