To perform well, public officials must be confident enough about the future, to be able to see a relationship between their efforts, and an eventual outcome. Their expectations are shaped by their institutional environment. If the rules are not credible, or are unlikely to be enforced, of if...

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...