Ethnic diversity has a more adverse effect on economic policy and growth when a government's institutions are poor. But poor institutions have an even more adverse effect on growth and policy when ethnic diversity is high

Many analysts decry the level of investment in Africa, saying it is too low. But there is no evidence, in cross-country data or in microeconomic data from Tanzania, that private and public capital is productive in Africa. In that sense, investment in Africa may be viewed as too high

One of the primary reasons that otherwise good politicians enact bad policies in countries all over the world, but especially in low-income countries, is that they face significant constraints in their efforts to bring about reform. These constraints, the "room for maneuver", are shaped by the...

Small states, no different from large states in income and growth, should receive the same policy advice large states do. Because of their greater openness, they may be more vulnerable to volatility in terms-of-trade shocks--but their openness pays off in growth