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Goodeve Medal 2017

Journal of the Operational Research Society

About the prize

Aimée Backiel, KU Leuven, Belgium
Bart Baesens, University of Southampton, UK & KU Leuven, Belgium
Gerda Claeskens, KU Leuven, Belgium

Given For:
The Goodeve Medal is awarded in recognition of the most outstanding contribution to the philosophy, theory or practice of OR published in the Journal of the Operational Research Society (JORS) within the relevant year (2016).

Journal of the Operational Research Society

Language: en-US

Publisher: tandf

Visit Journal Articles


Predicting time-to-churn of prepaid mobile telephone customers using social network analysis
Journal of the Operational Research Society 67: 1135-1145

Mobile phone carriers in a saturated market must focus on customer retention (churn) to maintain profitability. This study investigates whether the incorporation of social network information into churn prediction models can lead to improved accuracy, timeliness, and profitability. Records of 1.4 million customers making over 30 million calls per month were analysed for 6 months using Cox proportional hazards models, enabling improved predictions of likelihood of churn for each individual customer to be determined for each future time segment. This paper demonstrates how OR and analytics can improve business performance in a market that is used by almost everyone.

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