This paper estimates the impact of cigarette prices on youth smoking in lower-income countries using data from the Global Youth Tobacco Survey (GYTS). Country-level heterogeneity is addressed with fixed effects and by directly controlling for confounding environmental factors such as local...

We examine the productivity of informal firms (those that are not registered with the government) in 24 African countries using field work and World Bank firm level data. We find that productivity jumps sharply if we compare small formal firms to informal firms, and rises rapidly with the size...

In developing countries, informal firms (those that are not registered with the government) account for about half of all economic activity. We consider three broad views of the role of such firms in economic development. According to the romantic view, these firms would become the engine of...