Why do some people become entrepreneurs (and others don't)? Why are firms so heterogeneous, and many firms so small? To start, the paper briefly documents evidence from the empirical literature that the relationship between entrepreneurship and education is U-shaped, that many entrepreneurs...

Cross-sectional tests of the Jack-of-All-Trades theory of entrepreneurship invariably conclude that accumulation of balanced skill-mix across different fields of expertise stimulates entrepreneurship. Yet, none of these considers individual unobservable characteristics which may simultaneously...