EXPLAINING THE MARKET POWER OF GHANAIAN BANKS1

Q.q. Anthony Aboagye, S.k. Akoena, T.o. Antwi‐asare and A.f. Gockel

South African Journal of Economics, 2008, vol. 76, issue 4, 569-585

Abstract: A competitive banking system helps lower transaction costs and risks. It also helps make financial markets more efficient. In Ghana however, observers believe that the banking industry is not competitive and point to the huge spread between bank lending and borrowing rates as evidence. The Ghanaian banking industry is analysed for evidence of market power by computing the Lerner Index of banks using quarterly data from 2001 to 2006. The evidence is that Ghanaian banks possess market power. Factors that significantly explain the market power of Ghanaian banks are: bank size, efficiency of banks with respect to staff costs, the macroeconomic environment and time.

Date: 2008
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