Nonlinear Effects of Bank Regulation Stringency on Bank Lending in Selected Sub-Saharan African Countries

R.I. Thamae () and N.M. Odhiambo ()
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R.I. Thamae: University of South Africa
N.M. Odhiambo: University of South Africa

No 2218, Working Papers from African Economic and Social Research Institute (AESRI)

Abstract: This paper investigates the nonlinear effects of bank regulation stringency on bank lending in 23 sub-Saharan African (SSA) countries over the period 1997-2017. It employs the dynamic panel threshold regression (PTR) model, which addresses endogeneity and heterogeneity problems within a nonlinear framework. It also uses indices of entry barriers, mixing of banking and commerce restrictions, activity restrictions, and capital regulatory requirements from the updated databases of the World Bank’s Bank Regulation and Supervision Surveys as measures of bank regulation. The linearity test results support the existence of nonlinear effects in the relationship between bank lending and entry barriers or capital regulations in the selected SSA economies. The dynamic PTR estimation results reveal that bank lending responds positively when the stringency of entry barriers is below the threshold of 62.8%. However, once the stringency of entry barriers exceeds that threshold level, bank credit reacts negatively and significantly. By contrast, changes in capital regulation stringency do not affect bank lending, either below or above the obtained threshold value of 76.5%. These results can help policymakers design bank regulatory measures that will promote the resilience and safety of the banking system but at the same time not bring unintended effects to bank lending.

Keywords: Bank regulation; bank lending; nonlinear effects; dynamic panel threshold regression; sub-Saharan Africa (search for similar items in EconPapers)
Pages: 29
Date: 2022-12-30
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https://aesri.org/RePEc/afa/afa-wpaper/AESRI-2218-Final.pdf Revised version, 2026 (application/pdf)

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