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  • 學位論文

信用違約交換對美國半導體產業公司債的影響

The Impact of CDS trading on the US Corporate Bond Market of the Semiconductor Industry

指導教授 : 李賢源
共同指導教授 : 葉小蓁(Hsiaw-Chan Yeh)
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摘要


本文根據Bloomberg所提供的信用違約交換(Credit Default Swap, CDS)、公司債及財務報表等資料,以美國半導體產業中於2005年至2015年間有發行公司債的公司為樣本,分析CDS的發行是否會對公司債的發行成本產生影響。觀察目前多篇研究CDS影響的文獻中,大致可以分為兩個派系:一是認為CDS可以透過提供避險管道、揭露新資訊、降低策略性倒帳風險等渠道降低公司債的發行成本;一則認為由於CDS可以使債權人有新的管道可以避險,反而使其降低對債務人的監管導致違約風險提升,故會提升投資人要求的風險貼水。本篇論文透過實證方式研究CDS的發行對於公司債發行成本的影響為何,並透過多次模型的調整希望可以提升自變數影響的顯著程度。   實證結果顯示CDS交易對於公司債發行成本之影響並未顯著,而其他自變數如公司規模、槓桿比、債券發行量、到期年限、是否有擔保品等對於公司債發行利差皆有顯著之影響,符合筆者預期。另外,透過模型的調整,債券評等對於公司債發行利差之影響係數為負且達統計顯著性,因債券評等較高會有債券較低的信用風險,此部分也符合筆者預期;不過時間變數則對於公司債發行利差沒有顯著影響。

並列摘要


This article investigates the impact of Credit Default Swap(CDS) trading on the US corporate bond market of the semiconductor industry. There have been widespread claims that CDS have lowered the cost of firm’s debt financing by offering new hedging channels and information to investors. However, there are also some claims that CDS have reduced the lenders’ incentives to monitor the borrowers. Our empirical results says that there is an insignificant impact of CDS trading on the bond spread. However, we do find statistically significant effects of firm size, firm leverage, bond issue amount, maturity date, use of collateral, and rating on the bond spread. Nevertheless, date of issuance has an insignificant effect of the bond spread, even during the phase of the global financial crisis.

參考文獻


Ashcraft , Adam B. and João A. C. Santos, 2007, Has the Credit Default Swap Market Lowered the Cost of Corporate Debt?, Journal of Monetary Economics, 56, 514-623.
Best, R. and H. Zhang., 1993, Alternative Information Sources and the Information Content of Bank Loans, Journal of Finance, 48, 1507-1523.
Blanco, R., S. Brennan and I. W. Marsh, 2005, An Empirical Analysis of the Dynamic Relationship between Investment-Grade Bonds and Credit Default Swaps, Journal of Finance, 60, 2255-2281.
Christine A. Parlour and G. Plantin, 2008, Loan Sales and Relationship Banking, Journal of Finance, 63, 1291-1314.
Darrell, Duffie, 2008, Innovations in Credit Risk Transfer: Implications for Financial Stability, Working Paper of Bank for International Settlements,NO.225.

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