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Competing Risk Model for Mobile Phone Service  

Lee, Jae Kang (Department of Information & Industrial Engineering, Yonsei University)
Sohn, So Young (Department of Information & Industrial Engineering, Yonsei University)
Publication Information
Journal of Korean Institute of Industrial Engineers / v.32, no.2, 2006 , pp. 120-125 More about this Journal
Abstract
Since Korean government has implemented the "Number Portability System" in the domestic mobile communications market, mobile communication companies have been striving to hold onto existing customers and at the same time to attract new customers. This paper presents a competing risk model that considers the characteristics of a customer in order to predict the customer's life under the "Number Portability System." Three competing risks considered are pricing policy, quality of communication, and usefulness of service. It was observed that the customers who pay more are less sensitive on pricing policy younger people are less sensitive than older people to the quality of communication and women are more sensitive than men to the degree of usefulness of service. We expect that the result of this study can be used as a guideline for effective management of mobile phone customers under the Number Portability System.
Keywords
Wireless Communication Market; Competing Risk; Number Portability System;
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