How bank regulations impact efficiency and performance?

Abstract

Purpose This study aims to examine the impact of regulation and other micro- and macro-economic factors on banks’ productivity growth. It investigates the impact of different regulatory reforms on banks’ performance of total factor productivity (TFP) and its component efficiencies, along with their association with bank-specific variables of profitability and equity, and with macro-level variables of economy and freedom. That is, through analysing the influence of regulatory and supervisory policies related to Basel accords pillars of capital and market discipline through private monitoring; restrictions on bank activities; and economic and financial freedoms on TFP growth and year-end performance in banking. Design/methodology/approach The authors examine TFP for commercial banks in response to regulatory reforms on an international scale. To estimate the TFP, the authors use a non-parametric frontier technique by calculating the Malmquist output-oriented index, following Delis et al. (2011) and Worthington (1999). The components of the Malmquist index are ratios of distance functions making its estimation a straightforward technique using activity analysis or data envelopment analysis methods. This allows controlling for efficiency changes depending on the reallocation of production frontiers signalling the technical change and the technical efficiency at once. Findings Results show that high capital requirements enhance productivity growth in North and Latin American banks, but not in European African or Asian banks. Supervisory powers drive bank productivity growth in all regions except Europe and Central Asia. Restrictions on real estate, insurance and securities activities impede productivity change in all income level groups but not in high-income economies. The results also show that market volatility and Z-score drive technological change and scale efficiency growth, but negatively impact pure technical efficiency. Originality/value This paper contributes to the literature by examining the relationship between the implementation of regulatory standards and the performance of the banking sector following a structural model of the banking firm and the concept of optimisation. An additional contribution of this study is that it examines economies with different levels of income based on the gross national income per capita. The study summarises bank-specific data used to synthesise the banks’ productivity (inputs and outputs) and country-specific economic and regulatory compliance data over 19 years (1999-2017). The extent of this data set coverage makes it most recent and most conclusive of variables to provide a significant contribution to the literature on bank regulation and efficiency effect.