We consider congestion games on networks with nonatomic users and user-specific costs. We are interested in the uniqueness property defined by Milchtaich (2005) as the uniqueness of equilibrium flows for all assignments of strictly increasing cost functions. He settled the case with two-terminal...

We present new data on effective corporate income tax rates in 85 countries in 2004. The data come from a survey, conducted jointly with PricewaterhouseCoopers, of all taxes imposed on "the same" standardized mid-size domestic firm. In a cross-section of countries, our estimates of the effective...

We present new data on effective corporate income tax rates in 85 countries in 2004. The data come from a survey, conducted jointly with PricewaterhouseCoopers, of all taxes imposed on "the same" standardized mid-size domestic firm. In a cross-section of countries, our estimates of the effective...

We survey the research on the effect of employment laws in developing countries, using papers published since 2004. The survey is further supported by cross-country correlation analyses. Both exercises show that developing countries with rigid employment laws tend to have larger informal sectors...

Using a unique firm level data set -- the Enterprise Surveys -- this paper develops a new measure of credit-constrained status for firms using hard data instead of perceptions data. The paper classifies firms into four ordinal categories: Not Credit Constrained, Maybe Credit Constrained,...

We survey the research on the effect of employment laws in developing countries, using papers published since 2004. The survey is further supported by cross-country correlation analyses. Both exercises show that developing countries with rigid employment laws tend to have larger informal sectors...