Analysis of a panel data set for 1976-98 shows that on balance stock markets and banks positively influence economic growth; findings that do not result from biases induced by simultaneity, omitted variables, or unobserved country-specific effects

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