The effect of Fe y Alegria on school achievement : exploiting a school lottery selection as a natural experiment / Pablo Lavado (Universidad del Pacífico), Santiago Cueto (Group for the Analysis of Development), Gustavo Yamada (Universidad del Pacífico and IZA), Micaela Wensjoe (Group for the Analysis of Development) ; IZA, Institute of Labor Economics. Bonn, Germany : IZA Institute of Labor Economics, December 2016