Creating jobs and increasing productivity are at the top of agenda for policymakers across the world. Knowledge accumulation and skills are recognized as central in this process. More-educated workers not only have better employment opportunities, earn more, and have more stable and rewarding jobs, but also they are more adaptable and mobile. Workers who acquire more skills also make other workers and capital more productive and, within the firm, they facilitate the adaptation, adoption, and ultimately invention of new technologies. This is crucial to enable economic diversification,...