Aligning Learning Incentives of Students and Teachers: Results from a Social Experiment in Mexican High Schools • Jere Behrman, University of Pennsylvania ; Susan Parker, Centro de Investigación y Docencia Económicas (CIDE) ; Petra Todd, University of Pennsylvania ; Kenneth Wolpin, University of Pennsylvania

Does Lengthening the School Day Reduce the Likelihood of Early School Dropout and Grade Retention: Evidence from Colombia • Sandra Garcia, Universidad de Los Andes ; Camila Fernandez, Mathematica Policy Research, Inc. ; Christopher C. Weiss, Columbia University

Technology and Child Development: Evidence from the One Laptop per Child Program • Julian P. Cristia, Inter-American Development Bank ; Pablo Ibarraran, Inter-American Development Bank ; Santiago Cueto, Grupo de Análisis para el Desarrollo (GRADE) ; Ana Santiago, Inter-American Development Bank ; Eugenio Severin, Inter-American Development Bank