This paper examines the impact of bank regulations, market structure, and national institutions on bank net interest margins and overhead costs using data on over 1400 banks across 72 countries while controlling for bank specific characteristics. The data indicate that tighter regulations on...

The consolidation of banks around the world in recent years is intensifying public policy debates on the influences of concentration and competition on the performance of banks. In light of these developments, this paper first reviews the existing literature on the impact of bank concentration...