An ounce of prevention for a pound of cure: efficiency of community-based healthcare / Antonella Bancalari (Institute for Fiscal Studies and IZA), Pedro Bernal (Inter-American Development Bank), Pablo Celhay (Escuela de Gobierno and Instituto de Economía and Pontificia Universidad Católica de Chile), Sebastian Martinez (3ie), Maria Deni Sánchez (Inter-American Development Bank) ; IZA - Institute of Labor Economics