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Reassessment of Corporate Credit Risk Identification: Novel Discoveries from Integrated Machine Learning Models

Author

Listed:
  • Guoli Mo

    (Guangxi University)

  • Genliang Zhang

    (Guangxi University)

  • Chunzhi Tan

    (Guangxi University)

  • Weiguo Zhang

    (Shenzhen University)

  • Yifeng Guo

    (Guangxi University)

Abstract

Credit risk identification has always been a crucial area of research for mitigating and resolving significant risks. However, the traditional credit risk identification model suffers from two major limitations: ‘false identification’ and ‘heterogeneity of industry credit risk features’, making it challenging for financial institutions to comprehensively grasp these features across different industries. Therefore, this study aims to address these aforementioned issues. For ‘false identification’, this paper constructs five “sample equalization algorithm pools”, mainly SMOTE, CC, ADASYN, K means-SMOTE and SMOTE-ENN. To address the ‘heterogeneity of industry credit risk features’, the RFE method is utilized to solve this problem. By integrating these processes into machine learning algorithm, the SMOTE-ENN-RFE-RF-RSC integrated algorithm is finally developed. Furthermore, a comprehensive evaluation index LWEI is constructed to assess the performance of the model. In the index LWEI, the entropy weight method is utilized to integrate several other metrics, including Accuracy, G-mean and $$\text{YI}$$ YI . Finally, empirical analysis is conducted using default data obtained from listed companies collected by CNRDS (China Research Data Service Platform: https://www.cnrds.com/Home/Index ) as well as data from a specific cash lending company. The empirical findings demonstrate that: 1) The proposed SMOTE-ENN-RFE-RF-RSC model outperforms the SMOTE-ENN-XGBoost-RSC, SMOTE-ENN-LightGBM-RSC and SMOTE-ENN-KNN-RSC models, as well as the Lass model or SMOTE-Logit-BPNN, LightGBM, Bayes-XGBoost and GA-BPNN models. It effectively addresses both the issues of “false identification” and “heterogeneity of industry credit risk features” simultaneously; 2) Corporate profitability-related features predominantly contribute to the credit risk, while the impact of long-term debt risk on corporate default is limited. These research outcomes offer valuable insights and support to financial institutions such as banks and financial risk regulators in enhancing their credit risk identification and management practices.

Suggested Citation

  • Guoli Mo & Genliang Zhang & Chunzhi Tan & Weiguo Zhang & Yifeng Guo, 2025. "Reassessment of Corporate Credit Risk Identification: Novel Discoveries from Integrated Machine Learning Models," Computational Economics, Springer;Society for Computational Economics, vol. 66(4), pages 2791-2841, October.
    • Handle: RePEc:kap:compec:v:66:y:2025:i:4:d:10.1007_s10614-024-10801-3
    DOI: 10.1007/s10614-024-10801-3
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    References listed on IDEAS

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