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| Title: | 以重複事件分析法分析信用評等
Recurrent Event Analysis of Credit Rating |
| Authors: | 陳奕如
Chen, Yi Ru |
| Contributors: | 謝淑貞
Shieh, Shwu Jane
陳奕如
Chen, Yi Ru |
| Keywords: | 信用評等
重複事件分析法
Cox比例風險模型
credit rating
recurrent event analysis
Cox proportional hazard model
general class of semiparametric model
Z-Score model |
| Date: | 2008 |
| Issue Date: | 2016-05-09 11:26:14 (UTC+8) |
| Abstract: | This thesis surveys the method of extending Cox proportional hazard models (1972) and the general class of semiparametric model (2004) in the upgrades or downgrades of credit ratings by S&P. The two kinds of models can be used to modify the relationship of covariates to a recurrent event data of upgrades or downgrades. The benchmark credit-scoring model with a quintet of financial ratios which is inspired by the Z-Score model is employed. These financial ratios include measures of short-term liquidity, leverage, sales efficiency, historical profitability and productivity. The evidences of empirical results show that the financial ratios of historical profitability, leverage, and sales efficiency are significant factors on the rating transitions of upgrades. For the downgrades data setting, the financial ratios of short-term liquidity, productivity, and leverage are significant factors in the extending Cox models, whereas only the historical profitability is significant in the general class of semiparametric model. The empirical analysis of S&P credit ratings provide evidence supporting that the transitions of credit ratings are related to some determined financial ratios under these new econometrics methods. |
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| Description: | 碩士
國立政治大學
國際經營與貿易學系
95351016 |
| Source URI: | http://thesis.lib.nccu.edu.tw/record/#G0095351016 |
| Data Type: | thesis |
| Appears in Collections: | [國際經營與貿易學系 ] 學位論文
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