Identification of a Loan Supply Function: A Cross-Country Test for the Existence of a Bank Lending Channel

Using the theoretical predictions of the Bernanke-Blinder (1988) model, we seek to examine the existence of a bank lending channel through the empirical identification of a loan supply function and to assess the impact of differential bank characteristics on banks’ ability to supply loans. To this end, we estimate a loan supply model and test for the restrictions implied by perfect substitutability between loans and bonds in bank portfolios. Estimations are carried out on bank panel data for 16 OECD countries, the results showing that a bank lending channel is at work in only two of them. Moreover, and contrary to standard accounts, we find that the relevance of bank characteristics is hardly a decisive factor in the identification of a loan supply function.Bank lending channel; financial structure; dynamic panels

Bank-Specific, Industry-Specific and Macroeconomic Determinants of Bank Profitability

The aim of this study is to examine the effect of bank-specific, industry-specific and macroeconomic determinants of bank profitability, using an empirical framework that incorporates the traditional Structure-Conduct-Performance (SCP) hypothesis. To account for profit persistence, we apply a GMM technique to a panel of Greek banks that covers the period 1985-2001. The estimation results show that profitability persists to a moderate extent, indicating that departures from perfectly competitive market structures may not be that large. All bank-specific determinants, with the exception of size, affect bank profitability significantly in the anticipated way. However, no evidence is found in support of the SCP hypothesis. Finally, the business cycle has a positive, albeit asymmetric effect on bank profitability, being significant only in the upper phase of the cycle.Bank profitability; business cycles and profitability; dynamic panel data model

Technical and Allocative Efficiency in European Banking

This paper specifies an empirical framework for estimating both technical and allocative efficiency, which is applied to a large panel of European banks over the years 1996 to 2003. Our methodology allows for self-consistent measurement of technical and allocative inefficiency, in an effort to address the issue known in the literature as the Greene problem. The results suggest that, on average, European banks exhibit constant returns to scale, that technical and allocative efficiency are close to 80% and 75% respectively, and that overall economic efficiency shows a clearly improving trend. We also show through the comparison of various estimators that models incorporating only technical efficiency tend to overestimate it.Technical and allocative efficiency; Translog cost function; Maximum likelihood; European banking

Bank-specific, industry-specific and macroeconomic determinants of bank profitability

The aim of this study is to examine the effect of bank-specific, industry-specific and macroeconomic determinants of bank profitability, using an empirical framework that incorporates the traditional structure-conduct-performance (SCP) hypothesis. To account for profit persistence, we apply a GMM technique to a panel of Greek banks that covers the period 1985-2001. The estimation results show that profitability persists to a moderate extent, indicating that departures from perfectly competitive market structures may not be that large. All bank-specific determinants, with the exception of size, affect bank profitability significantly in the anticipated way. However, no evidence is found in support of the SCP hypothesis. Finally, the business cycle has a positive, albeit asymmetric effect on bank profitability, being significant only in the upper phase of the cycle.