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http://dx.doi.org/10.5351/KJAS.2018.31.6.771

Survival analysis for contract maintenance period using life insurance data  

Yang, Dae Geon (Department of Statistics, Pukyong National University)
Ha, Il Do (Department of Statistics, Pukyong National University)
Cho, Geon Ho (Division of Cosmetic Science and Technology, Industrial Quality Engineering, Daegu Haany University)
Publication Information
The Korean Journal of Applied Statistics / v.31, no.6, 2018 , pp. 771-783 More about this Journal
Abstract
The life insurance industry is interested in various factors that influence the long-term extensions of insurance contracts such as the necessity for the advisors' long-term management of consumers, product consulting, and improvement of the investment aspects. This paper investigates important factors leading to a long-term contract that forms an important part of the life insurance industry in Korea. For this purpose we used the data of contents (i.e., data from Jan 1, 2011 to Dec 31, 2016) of the contracts of xxx insurance company. In this paper, we present how to select important variables to influence the duration of the contract maintenance via a penalized Cox's proportional hazards (PH) modelling approach using insurance life data. As the result of analysis, we found that the selected important factors were the advisor's status, the reward type 2 (annuity insurance) and tendency 4 (safety-pursuing type).
Keywords
Cox's proportional hazards model; life insurance data; penalized variable selection; survival analysis;
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