Almost a decade after Argentina began privatizing its railways, resolution of conflicts between regulators, users, and operators continues to take longer, and to be more difficult, than expected. The authors contend that many of these conflicts arose because there are no rules for interactions...

Economists often characterize the regulation of monopolies as a"game"(between the regulator and the service provider) in which the two players do not share the same information. The regulator is assumed to have poorer information than the service provider about the scope of future efficiency...

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...

Using a firm-level survey database covering 48 countries, the authors investigate whether differences in financial and legal development affect the way firms finance their investments. The results indicate that external financing of investments is not a function of institutions, although the...