This interdisciplinary volume addresses the special challenges that middle-income countries confront from both a theoretical and a practical perspective.

Reliable information on how health service strategies affect the poor is in short supply. In an attempt to redress the imbalance, 'Improving Health Service Deli

Every year, the World Bank’s World Development Report (WDR) features a topic of central importance to global development. The 2018 WDR—LEARNING to Realize E

Economic and social progress requires a diverse ecosystem of firms that play complementary roles. Making It Big: Why Developing Countries Need More Large Firms

October 1998 The relationship between household wealth and educational enrollment of children can be estimated without expenditure data. A method for doing so-w