This study addresses the question with a rigorous econometric approach and distills global results from a multitude of evidence. The data set compiled is unique in its coverage, size, and composition, making it possible to address for the first time methodological problems that have plagued...

The Kyrgyz Republic has experienced modest and volatile economic expansion since the economy bottomed out from the transition recession in 1995, when GDP amounted to about half of its pre-independence levels. As a result of structural reforms at the start of transition, the emergence of...

Infrastructure contributed 1.8 percentage points to Cote d'Ivoire's annual per capita GDP growth over the mid-2000s before conflict began to erase the country's infrastructure and its growth contributions. Raising the country's infrastructure endowment to the level of the region's middle-income...

Infrastructure contributed just over one percentage point to Ghana's annual per capital GDP growth during the 2000s. Raising the country’s infrastructure endowment to that of the region's middle-income countries could boost the annual growth rate by more than 2.7 percentage points. Ghana has...

Liberia's power generating capacity and national grid were completely demolished during 14 years of civil war. Piped water access fell from 15 percent of the population in 1986 to less than 3 percent in 2008. War also left the national road network in a state of severe disrepair. Since the...

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...