In this paper we argue that one of the mechanisms through which inequa
lity may affect long-run growth is through individuals' education poss
ibilities. The cost of education is therefore a crucial variable. We e
ndogenize this cost and show that it will be high relative to average
wealth in poor countries, and relatively low in rich countries. With t
wo-tailed distributions of wealth, this is going to imply that greater
inequality increases growth rates in poor economies, while it decreas
es them in rich economies.