Please use this identifier to cite or link to this item:
http://hdl.handle.net/10071/9389
Author(s): | Alves, B. C. Dias, J. G. |
Date: | 2015 |
Title: | Survival mixture models in behavioral scoring |
Volume: | 42 |
Number: | 8 |
Pages: | 3902 - 3910 |
ISSN: | 0957-4174 |
DOI (Digital Object Identifier): | 10.1016/j.eswa.2014.12.036 |
Keywords: | Credit risk Behavioral scoring Survival analysis Mixture models |
Abstract: | This paper introduces a general framework of survival mixture models (SMMs) that addresses the unobserved heterogeneity of the credit risk of a financial institution's clients. This new behavioral scoring framework contains the specific cases of aggregate and immune fraction models. This general methodology identifies clusters or groups of clients with different risk patterns. The parameters of the model can be explained by independent variables in a regression setting. The application shows the different risk trajectories of clients. Specifically, the time between the first delayed payment and default was best modeled by a three-segment log-normal mixture distribution and a multinomial logit link function. Each segment contains clients with similar risk profiles. The model predicts the most likely risk segment for each new client. |
Peerreviewed: | yes |
Access type: | Embargoed Access |
Appears in Collections: | BRU-RI - Artigos em revistas científicas internacionais com arbitragem científica |
Files in This Item:
File | Description | Size | Format | |
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Expert_Systems_with_Applications.pdf Restricted Access | Versão Editora | 852,9 kB | Adobe PDF | View/Open Request a copy |
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