Global Diversification,Hedging Diversification,and Default Risk in Bank Equity: An Option-Pricing Model

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题名:	Global Diversification,Hedging Diversification,and Default Risk in Bank Equity: An Option-Pricing Model
作者:	Lin, Jyh-Horng;Lin, Jyh-Jiuan;Jou, Rosemary
贡献者:	淡江大學統計學系
关键词:	Default Risk;International Lending Diversification;Loan Portfolio Swap
日期:	2009-11
上传时间:	2011-10-23 16:34:06 (UTC+8)
出版者:	Athens: World Scientific and Engineering Academy and Society (W S E A S)
摘要:	Many banks diversify their operations, either across different national markets (global diversification), across different borrowers by offsetting credit risks (hedging diversification), or both. Can multiple diversifications provide greater safety for banks? This paper aims to answer this question by using an option-based pricing model to formulate the default risk in bank equity returns under global and hedging diversifications. In particular, we apply Vassalou and Xing’s (2004) formula, which is a nonlinear option-based function of the default probability of an individual bank’s equity return. This formula is calculated using the contingent claim methodology of Black and Scholes (1973) and Merton (1974). We find that the extent of global diversification may provide greater safety for banks, but also that the extent of hedging diversification may not.
關聯:	WSEAS Transactions on Mathematics 11(8), pp.667-678
显示于类别:	[國際企業學系暨研究所] 期刊論文 [統計學系暨研究所] 期刊論文

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