The authors demonstrate how to estimate a model of oligopoly pricing when products are multidimensionally differentiated. They provide an empirical counterpart to recent theoretical work on product differentiation. Using specifications informed by economic theory, the authors estimate price-cost...

The authors measure the responsiveness of returns to capital invested in six U.S. industries to shocks to the prices of competing import goods. Unanticipated, positive shocks to import prices cause higher than normal stock-market returns in all six industries. The magnitudes of these responses...

As an alternative to traditional academic schooling, vocational schooling in South Africa may serve as a safety valve for students encountering difficulty in the transition from school to work. Yet if ineffective, vocational schooling could also be a sinkhole, offering little chance for success...

As an alternative to traditional academic schooling, vocational schooling in South Africa may serve as a safety valve for students encountering difficulty in the transition from school to work. Yet if ineffective, vocational schooling could also be a sinkhole, offering little chance for success...

Teachers are perhaps the most important determinant of education quality. But what makes a teacher effective? Developing countries expend substantial resources on certifying teachers and retaining those who become certified; moreover, policymakers and aid donors prioritize increasing the...