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政大機構典藏 > 商學院 > 統計學系 > 期刊論文 > Item 140.119/62445

Please use this identifier to cite or link to this item: https://nccur.lib.nccu.edu.tw/handle/140.119/62445

Title:	Bayesian Inference for credit Risk with Serially Dependent Factor Model
Authors:	張揖平;游智惇;劉惠美 Chang, Yi-Ping;Yu, Chih-Tun;Liu, Huimei
Contributors:	政大統計系
Keywords:	Default probability;Asset correlation;Serially dependent factor model;Bayesian inference
Date:	2011-06
Issue Date:	2013-12-12 18:08:47 (UTC+8)
Abstract:	Default probability and asset correlation are key factors in determining credit default risk in loan portfolios. Therefore, many articles have been devoted to the study in quantifying default probability and asset correlation. However, the classical estimation methods (e.g. MLE) usually use only historical data and often underestimate the default probability in special situations, such as the occurrence of a financial crisis. By contrast, the Bayesian method is seen to be a more viable alternative to solving such estimation problems. In this paper, we consider the Bayesian approach by applying Markov chain Monte Carlo (MCMC) techniques in estimating default probability and asset correlation under serially dependent factor model. The empirical results and out-of-sample forecasting for S&P default data provide strong evidence to support that the serially dependent factor model is reliable in determining credit default risk.
Relation:	International Journal of Information and Management Sciences, 22(2), 135-155
Data Type:	article
Appears in Collections:	[統計學系] 期刊論文

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