We assess the relevance of formal education on the productivity of the self-employed and distinguish between opportunity entrepreneurs, who voluntarily pursue a business opportunity, and necessity entrepreneurs, who lack alternative employment options. We expect differences in the returns to...

We compare, based on German data, the income of self-employed individuals with and without employees with the income of dependently employed individuals. Our results show that self-employed with employees tend to earn significantly higher incomes than their salaried counterparts, while with the...