City size distributions are known to be well approximated by power laws across many countries. One popular explanation for such power-law regularities is in terms of random growth processes, where power laws arise asymptotically from the assumption of iid growth rates among all cities within a...

This paper checks for the robustness of the estimate of the impact of market access on the regional variability of human capital, derived from the NEG literature. The hypothesis is that the estimate of the coefficient of the measure of market access is actually capturing the effect of regional...