measure ‘income’). This is the case even when estimating individual fixed effects of the differential returns to education for …/or whether we use instrumental variables to cope with the endogenous nature of education in income equations. Finally, we find …

of schooling in developing economies raises enterprise income by an average of 5.5 percent, which is close to the average …

generates a higher income, but only for entrepreneurs: This finding supports Lazear's Jack-of-all-Trades theory. …