Marco V. Sánchez, Economic Affairs Officer in the Development Strategy and Policy Analysis Unit of DPAD, presented a background paper, co-written with Martin Cicowiez, at the Development Policy Seminar held on April 23. The presentation focused on the drivers of potential, medium- to long-run economic gains from past human development investments in pursuance of the MDGs. These gains have been quantified through policy analyses, drawing on a computable general equilibrium model for four developing countries: Bolivia, Costa Rica, Uganda and Yemen.