Materia de Determinantes de los resultados de las evaluaciones de profesores: el caso de la Universidad de los Andes Artículo Do Productive Workers Sort into Fexible Work Arrangements? Documentos de trabajo Do Single Sex Classes Affect Exam Scores?: An Experiment in a Coeducational University Documentos de trabajo Do Single-Sex Classes Affect Achievement? An Experiment in a Coeducational University Documentos de trabajo Heterogenous teacher effects of two incentive schemes: Evidence from a low-income country Artículo How Does Working-Time Flexibility Affect Workers' Productivity in a Routine Job? Evidence from a Field Experiment Documentos de trabajo How Does Working-Time Flexibility Affect Workers' Productivity in a Routine Job? Evidence from a Field Experiment Documentos de trabajo How Does Working-Time Flexibility Affect Workers' Productivity in a Routine Job? Evidence from a Field Experiment Documentos de trabajo How Does Working-Time Flexibility Affect Workers' Productivity in a Routine Job? Evidence from a Field Experiment Documentos de trabajo How Does Working-Time Flexibility Affect Workers' Productivity in a Routine Job? Evidence from a Field Experiment Documentos de trabajo How Does Working-Time Flexibility Affect Workers' Productivity in a Routine Job? Evidence from a Field Experiment Documentos de trabajo La reciente afluencia de capital extranjero a Colombia Artículo Los dólares del narcotráfico Documentos de trabajo Pretrial detention and conviction Artículo Vertically Splitting a Firm: Promotion and Demotion in a Team Production Experiment Documentos de trabajo