Browse > Article
http://dx.doi.org/10.5351/KJAS.2006.19.3.407

Analysis of Household Overdue Loans by Using a Two-stage Generalized Linear Model  

Oh, Man-Suk (Dept. of Statistics, Ewha Womans University)
Oh, Hyeon-Tak (School of Business, Chonbook University)
Lee, Young-Mi (Dept. of Statistics, Ewha Womans University)
Publication Information
The Korean Journal of Applied Statistics / v.19, no.3, 2006 , pp. 407-419 More about this Journal
Abstract
In this paper, we analyze household overdue loans in Korea which has been causing serious social and economical problems. We consider customers of Bank A in Korea and focus on overdue cash services which have been snowballing in the past few years. From analysis of overdue loans, one can predict possible delays for current customers as well as build a credit evaluation and risk management system for future customers. As a statistical analytical tool, we propose a two-stage Generalized Linear regression Model (GLM) which assumes a logistic model for presence/non-presence of overdue and a gamma model for the amount of overdue in the case of overdue. We perform goodness of fit test for the two-stage model and select significant explanatory variables in each stage of the model. It turns out that age, the amount of credit loans from other financial companies, the amount of cash service from other companies, debit balance, the average amount of cash service, and net profit are important explanatory variables relevant to overdue credit card cash service in Korea.
Keywords
Credit evaluation system; Logistic regression model; Gamma distribution; Variable selection;
Citations & Related Records
연도 인용수 순위
  • Reference
1 Kvanli, A. H., Shen, Y. K., and Deng, L. Y. (1998). Construction of confidence intervals for the mean of a population containing many zero values, Journal of Business and Economics 16, 362-368   DOI
2 Lambert, D. (1992). Zero-inflated Poisson regression, with an application to random defects in manufacturing, Technometrics 34, 1-14   DOI   ScienceOn
3 McCullagh, P. and NeIder, J. A. (1989). Generalized linear models, Chapman and Hall: London
4 SAS (2000). SAS System for Windows V.8, SAS Institute Inc
5 한국은행 (2003). <2003년 8월 중 금융시장 동향>, 한국은행
6 Cameron, A. C. and Trivedi, P. K. (1986). Econometric models based on count data: comparisons and applications of some estimators and tests, Journal of Econometrics 1, 29-53   DOI
7 한국경제연구원 (2003). <경제전망과 정책과제 2003년9월> 13(3), 한국경제연구원
8 신수일 (2002). 연관 규칙과 분류 규칙을 이용한 은행 고객의 연체 성향 분석에 관한 연구. 석사학위논문, 서강대학교 대학원
9 Hall, D. B. (2000). Zero-inflated Poisson and binomial regression with random effects: a case study, Biometrics 56, 1030-1039   DOI   ScienceOn
10 Dietz, E. and Bohning, D. (2000). On estimation of the Poisson parameter in zero-modified Poisson models, Computational Statistics and Data Analysis 34, 441-451   DOI   ScienceOn