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Support vector regression for loss given default modelling
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DOI：10.1016/j.ejor.2014.06.043.png)
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摘要
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Loss given default modelling has become crucially important for banks due to the requirement that they comply with the Basel Accords and to their internal computations of economic capital. In this paper, support vector regression (SVR) techniques are applied to predict loss given default of corporate bonds, where improvements are proposed to increase prediction accuracy by modifying the SVR algorithm to account for heterogeneity of bond seniorities. We compare the predictions from SVR techniques with thirteen other algorithms. Our paper has three important results. First, at an aggregated level, the proposed improved versions of support vector regression techniques outperform other methods significantly. Second, at a segmented level, by bond seniority, least square support vector regression demonstrates significantly better predictive abilities compared with the other statistical models. Third, standard transformations of loss given default do not improve prediction accuracy. Overall our empirical results show that support vector regression techniques are a promising technique for banks to use to predict loss given default. (C) 2014 Elsevier B.V. All rights reserved.
Keyword:
Support vector regression
Loss given default
Recovery rate
Credit risk modelling
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IF:
6
论文数:
2.2W
被引数:
6.4W
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