Determinants of Bank Interest Margins in Sub-Saharan Africa

Financial intermediation is low in sub-Saharan Africa (SSA) compared to other regions of the world. This paper examines the determinants of bank interest margins using a sample of 456 banks in 41 SSA countries. The results show that market concentration is positively associated with interest margins...

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Bibliographic Details
Main Author: Ahokpossi, Calixte
Format: eBook
Language:English
Published: Washington, D.C. International Monetary Fund 2013
Series:IMF Working Papers
Subjects:
Online Access:
Collection: International Monetary Fund - Collection details see MPG.ReNa
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651 4 |a United States 
653 |a Depository Institutions 
653 |a Banks and banking, Foreign 
653 |a Commercial banks 
653 |a Liquidity risk 
653 |a Banks 
653 |a Banks and banking 
653 |a Financial institutions 
653 |a Value of Firms 
653 |a Micro Finance Institutions 
653 |a State-owned banks 
653 |a Mortgages 
653 |a Financial risk management 
653 |a Credit risk 
653 |a Capital and Ownership Structure 
653 |a Goodwill 
653 |a Banks and Banking 
653 |a Financial Markets and the Macroeconomy 
653 |a Financial regulation and supervision 
653 |a Banking 
653 |a Financial Risk and Risk Management 
653 |a Financing Policy 
653 |a Foreign banks 
653 |a Financial services law & regulation 
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520 |a Financial intermediation is low in sub-Saharan Africa (SSA) compared to other regions of the world. This paper examines the determinants of bank interest margins using a sample of 456 banks in 41 SSA countries. The results show that market concentration is positively associated with interest margins, but the impact depends on the level of efficiency of each bank. In particular, compared to inefficient banks, efficient ones increase their margins more in concentrated markets. This indicates that policies that promote competition and reduce market concentration would help lower interest margins in SSA. The results also show that bank-specific factors such as credit risk, liquidity risk, and bank equity are important determinants of interest margins. Finally, interest margins are sensitive to inflation, but not to economic growth or public or foreign ownership. There are regional differences within SSA regarding the level of interest margins even after controlling for other factors