Theory makes ambiguous predictions about the effects of bank concentration on access to external finance. Using a unique data base for 74 countries offinancing obstacles and financing patterns for firms of small, medium, and large size, the authors assess the effects of banking market structure...

The most effective regulators in developing countriesare following remarkably similar approaches. The main common element across"best practice"countries is the use of relatively simple quantitative models of operators'behavior and constraints to measure the impact of regulatory decisions on some...