The authors construct a new measure of connectivity in the global air transport network, covering 211 countries and territories for the year 2007. It is grounded in network analysis methods, and is based on a gravity-like model that is familiar from the international trade and regional science...

Infrastructure made a net contribution of around one percentage point to Nigeria's improved per capita growth performance in recent years, in spite of the fact that unreliable power supplies held growth back. Raising the country's infrastructure endowment to that of the region's middle-income...

Despite external shocks, Mali's economy grew by 5.3 percent per year between 2003 and 2006, driven primarily by the telecommunications sector. But Mali's landlocked condition, together with the uneven distribution of population and economic activities between the arid north and the much richer...

Between 2000 and 2005, infrastructure contributed less than 1 percentage point to the Central African Republic's annual per capita GDP growth, despite substantial spending in the road sector. Raising the country's infrastructure endowment to that of the region's middle-income countries could...

Cape Verde stands out in West Africa as a country whose economic geography poses major and unique challenges for infrastructure development. Its small population of half a million people is spread across a nine-island archipelago. The islands need complementary infrastructure in terms of roads,...

This paper analyzes previously unreleased firm-level customs transaction data from the Lao PDR in order to assess the determinants of cohort survival among exporters. The authors find that export flows in value terms are dominated by the intensive margin, with large firms continuing to supply...

Repeated attempts at uncovering the relevance of country size for various economic factors have produced discouraging results. The present paper sheds new light on the relevance of country size using micro or firm-level data on firms'experience with the quality of tax administration, an...

During the past decade, cotton prices remained considerably below other agricultural prices (although they recovered toward the end of 2010). Yet, between 2000-04 and 2005-09 world cotton production increased 13 percent. This paper conjectures that biotechnology-induced productivity improvements...

The regulatory environment in a country can affect firm performance. This study investigates the impact of a particular regulation, namely license requirements for certain firm activities, on the innovation performance of Indian firms. First it presents a model of firm and industry evolution...

This paper studies the volatility of commodity prices on the basis of a large dataset of monthly prices observed in international trade data from the United States over the period 2002 to 2011. The conventional wisdom in academia and policy circles is that primary commodity prices are more...