Relying on Forbes Magazine annual rankings for two decades, 1625 billionaires and their countries of birth and residence are identified, most of whom are self-made entrepreneurs. 13 percent of billionaires reside in a country other than that of their birth. Migration is linked to distance, to...

Introduction -- Entrepreneurship and economic growth -- Regional variation in entrepreneurial activity -- Human capital and entrepreneurship -- Entrepreneurship and employment growth -- Summary and conclusions -- A formulation of entrepreneurship policy.