Nonlinear linkages between bank asset quality and profitability: evidence from dynamic and quantile approaches using a global sample

Faisal Alqahtani, Besma Hamdi and Michael Skully

International Journal of Managerial Finance, 2021, vol. 18, issue 3, 425-444

Abstract: Purpose - The purpose of this study is to examine whether the relationship between asset quality and profitability is linear or nonlinear, using a global dataset containing 2,943 banks from advanced and emerging economies. Design/methodology/approach - The authors use theU-shape test to investigate the existence of a nonlinear relationship between asset quality and profitability. In addition, the dynamic panel generalised method of moments (GMM) and quantile regression are used to examine the nonlinear effect of profitability on nonperforming loans (NPLs). Findings - After controlling for macroeconomic and bank internal factors, the authors find empirical evidence supporting the existence of a nonlinear relationship in the form of aU-shape. This is also confirmed through the three-stageUtest procedure. After distinguishing between advanced and emerging economies, the authors also find that, in advanced markets, the credit policy responds more rapidly to changes in credit market conditions than in emerging markets, providing insights into credit market dynamics. Research limitations/implications - Further research can check the robustness of this study’s findings in different markets and investigate the existence of nonlinearity in other bank variables. Practical implications - In a nutshell, the results demonstrate potential implications for policymakers who need to carefully monitor banks' lending behaviour to ensure that banks do not lower lending standards. In addition, banking regulators and supervisors should consider the possible nonlinear relationship in their risk assessments and macrostress tests. Further, these results are important for bank managers, who should monitor the performance of their loan portfolios to ensure that their credit officers do not lower credit standards. Likewise, for banks located in an emerging economy, investing in human capital and advanced technologies can enable them to respond more effectively to changes in the credit market. Originality/value - To the best of the authors' knowledge, this study is considered the first to provide empirical evidence for the nonlinear relationship between asset quality and profitability.

Keywords: Nonperforming loans; Bank profitability; Financial stability; Nonlinear relationships; G01; G2; G3; G32 (search for similar items in EconPapers)
Date: 2021
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Persistent link: https://EconPapers.repec.org/RePEc:eme:ijmfpp:ijmf-06-2020-0301

DOI: 10.1108/IJMF-06-2020-0301

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