Financial freedom, market power and bank margins in sub-Saharan Africa

Emmanuel Sarpong-Kumankoma, Joshua Abor, Anthony Quame Q. Aboagye and Mohammed Amidu

Journal of Financial Regulation and Compliance, 2019, vol. 28, issue 2, 283-299

Abstract: Purpose - This paper examines the effect of financial (banking) freedom and market power on bank net interest margins (NIM). Design/methodology/approach - The study uses data from 11 sub-Saharan African countries over the period, 2006-2012, and the system generalized method of moments to assess how financial freedom affects the relationship between market power and bank NIM. Findings - The authors find that both financial freedom and market power have positive relationships with bank NIM. However, there is some indication that the impact of market power on bank margins is sensitive to the level of financial freedom prevailing in an economy. It appears that as competition intensifies, margins of banks in freer countries are likely to reduce faster than those in areas with more restrictions. Practical implications - Competition policies could be guided by the insight on how financial freedom moderates the effect of market power on bank margins. Originality/value - This study provides new empirical evidence on how the level of financial freedom affects bank margins and the market power-bank margins relationship.

Keywords: Competition; Market power; Banks; Financial freedom; Lerner; Net interest margins; D42; E43; G21 (search for similar items in EconPapers)
Date: 2019
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Persistent link: https://EconPapers.repec.org/RePEc:eme:jfrcpp:jfrc-05-2019-0066

DOI: 10.1108/JFRC-05-2019-0066

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