The economic and social prospects are daunting for the 89 million out-of-school youth who comprise nearly half of all youth in Sub-Saharan Africa. Within the next decade, when this cohort becomes the core of the labor market, an estimated 40 million more youth will drop out, and will face an uncertain future with limited work and life skills. Furthermore, out-of-school youth often are "policy orphans," positioned between sectors with little data,...