Customer churn analysis in banking sector: Evidence from explainable machine learning models

Hasraddin Guliyev () and Ferda Yerdelen Tatoglu ()
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Hasraddin Guliyev: The Economic Research Center of Turkish World, Azerbaijan State Economic University/AZERBAIJAN
Ferda Yerdelen Tatoglu: Istanbul University/TURKEY

Journal of Applied Microeconometrics, 2021, vol. 1, issue 2, 85-99

Abstract: Although large companies try to gain new customers, they also want to retain their old customers. Therefore, customer churn analysis is important for identifying old customers without loss and developing new products and making new strategic decisions for retaining customers. This study focuses on the customer churn analysis, that is a significant topic in banks customer relationship management. Identifying customer churn in banks will helps the management to classification who are likely to churn early and target customers using promotions, as well as provide insight into which factors should be considered when retaining customers. Although different models are used for customer churn analysis in the literature, this study focuses on especially explainable Machine Learning models and uses SHapely Additive exPlanations (SHAP) values to support the machine learning model evaluation and interpretability for customer churn analysis. The goal of the research is to estimate the explainable machine learning model using real data from banking and to evaluate many machine learning models using test data. According to the results, the XgBoost model outperformed other machine learning methods in classifying churn customers.

Keywords: customer loyalty; customer retention; customer churn analysis; machine learning models; tree-based predictive models (search for similar items in EconPapers)
Date: 2021
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Persistent link: https://EconPapers.repec.org/RePEc:jle:joujam:jame1203

DOI: 10.53753/jame.1.2.03

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