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内部评级法中违约概率与违约损失率的测算研究 被引量:17
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作者 于立勇 詹捷辉 金建国 《统计研究》 CSSCI 北大核心 2004年第12期22-26,共5页
The internal rating-based approach is the core content of New Basel Accord.The calculation of probability of default,loss given default,expected losses and other concerning factors are the key steps to bring internal ... The internal rating-based approach is the core content of New Basel Accord.The calculation of probability of default,loss given default,expected losses and other concerning factors are the key steps to bring internal rating-based approach into effect.Based on the practical data of our state-owned commercial banks,a relative scientific evaluating system is established in this paper by stepwise discriminant analysis,and a probability of default forecasting model is constructed by Bayes discriminant model.Also expected losses are calculated by neural network based on Levenberg-Marquardt algorithm.Therefore,loss given default could be work out by the function among probability of default,loss given default and expected losses.Empirical results show that this model could be of certain validity and feasibility to forecast probability of default and loss given default. 展开更多
关键词 违约损失率 违约概率 内部评级法 测算 研究
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基于GJR-GARCH的VaR模型及其在上海证券市场的实证研究 被引量:3
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作者 康宇虹 梁健 《南开管理评论》 CSSCI 2004年第4期80-82,共3页
针对风险价值VaR的一般参数方法都是对称的,其在处理非对称时间序列时存在着局限性,本文提出了非对称的VaR计算模型,并以上海证券市场为对象进行了实证研究,结果表明基于非对称的VaR计算模型优于对称的VaR计算模型。
关键词 GJR-GARCH模型 VAR模型 风险价值 非对称时间序列 上海 证券市场 资产收益率 自回归条件异方差 实证分析
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