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題名 Bayesian Inference for credit Risk with Serially Dependent Factor Model
作者 張揖平;游智惇;劉惠美
Chang, Yi-Ping;Yu, Chih-Tun;Liu, Huimei
貢獻者 政大統計系
關鍵詞 Default probability;Asset correlation;Serially dependent factor model;Bayesian inference
日期 2011-06
上傳時間 12-Dec-2013 18:08:47 (UTC+8)
摘要 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.
關聯 International Journal of Information and Management Sciences, 22(2), 135-155
資料類型 article
dc.contributor 政大統計系en_US
dc.creator (作者) 張揖平;游智惇;劉惠美zh_TW
dc.creator (作者) Chang, Yi-Ping;Yu, Chih-Tun;Liu, Huimeien_US
dc.date (日期) 2011-06en_US
dc.date.accessioned 12-Dec-2013 18:08:47 (UTC+8)-
dc.date.available 12-Dec-2013 18:08:47 (UTC+8)-
dc.date.issued (上傳時間) 12-Dec-2013 18:08:47 (UTC+8)-
dc.identifier.uri (URI) http://nccur.lib.nccu.edu.tw/handle/140.119/62445-
dc.description.abstract (摘要) 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.en_US
dc.format.extent 703349 bytes-
dc.format.mimetype application/pdf-
dc.language.iso en_US-
dc.relation (關聯) International Journal of Information and Management Sciences, 22(2), 135-155en_US
dc.subject (關鍵詞) Default probability;Asset correlation;Serially dependent factor model;Bayesian inferenceen_US
dc.title (題名) Bayesian Inference for credit Risk with Serially Dependent Factor Modelen_US
dc.type (資料類型) articleen