An Empirical Analysis of Commercial Bank Profitability in Financially Liberalized Markets
Chapter 1 of the dissertation investigates the determinants of bank interest margin (NIM)and noninterest income (NII) using a system estimation approach for all commercial banks in agroup of 28 financially liberalized countries during the period between 1997 and 2004. Theempirical results generally suggest that NIM is directly influenced by operating costs, riskaversion, credit risk, the interaction between interest rate risk and bank risk, bank size, volume ofcredit, and NII. NIM is negatively related to interest rate risk and capital adequacy. NII is foundto correlate positively with NIM, total assets, credit risk, liquidity risk, overhead expenses, andpre-tax profit. The study also finds that NII is inversely related to the level of bank deposits andinterest rate risk. The influence of bank concentration on NIM and NII is positive, but generallyinsignificant.Chapter 2 analyzes the factors that influence two popular bank performance measures:return on equity (ROE) and pre-tax operating income (PTOIAA). Another objective is to testwhether the Structure-Conduct-Performance hypothesis holds in a period when banks areincreasingly relying on profits from nontraditional activities. Overall, the study finds that bothROE and PTOIAA are positively related to capital adequacy and non-interest income. PTOIAAis directly influenced by non-interest expenses and credit risk. Bank size does not appear to havean impact on ROE and PTOIAA. NII is an increasing function of both ROE and PTOIAA.There appears to be a net gain in overall bank performance associated with banks’ increasinginvolvement in nontraditional activities. Finally, bank market share has no significant impact onROE or PTOIAA.
Year of publication: |
2006-12-15
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Authors: | Nguyen, James |
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