In 1975 Theodore W. Schultz suggested that the returns to human capital are highest in economic environments experiencing unexpected price, productivity, and technology shocks that create “disequilibria.” In such environments, the ability of firms and individuals to adapt their resource...

Using data on more than 56,000 enterprises in 90 countries, this study finds that objective conditions in the business environment vary substantially across firms of different sizes and that there are important nonlinearities in their impact on employment growth. The study focuses on four areas:...