Quantitative credit risk management for credit limit control of subscribers to mobile communication services

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Protecting the base of existing customers from churn is a strategic lever for revenue protection of mobile communication service providers. Understanding customers' sensitivities to changes in billing amounts creates an under-valued opportunity to reduce customer churn for non-payment. Leveraging credit risk techniques from the financial industry, a framework for customer segmentation based on spending behaviour is presented. By significantly improving best-in-class credit risk models, more refined credit limits can be set and the profitability of customer relationships be maximized.