We consider school choice problems. We are interested in solutions that satisfy consistency. Consider a problem and a recommendation made by the solution for the problem. Suppose some students are removed with their positions in schools. Consider the “reduced” problem consisting of the...

We consider two-sided many-to-many matching markets in which each worker may work for multiple firms and each firm may hire multiple workers. We study individual and group manipulations in centralized markets that employ (pairwise) stable mechanisms and that require participants to submit rank...

This paper studies many-to-one matching markets where each student is assigned to a hospital. Each hospital has possibly multiple positions and responsive preferences. We study the game induced by the student-optimal stable matching mechanism. We assume that students play their weakly dominant...

Resumen El acceso al sistema financiero ha mostrado tener efectos positivos sobre los hogares pobres. Al darle acceso a las mujeres al sistema bancario se podría esperar un aumento en sus activos psicológicos y físicos y por tanto mayores instrumentos que fomenten el empoderamiento: la toma...

We study the problem of allocating objects among people. We consider cases where each object is initially owned by someone, no object is initially owned by anyone, and combinations of the two. The problems we look at are those where each person has a need for exactly one object and initially...

Para sorpresa de la opinión en Colombia, la mafia en el sentido de la definición tradicional de `empresarios de la protección´, asociada a la imagen de los mafiosos sicilianos, rusos o los japoneses de la yakuza, es un fenómeno muy reciente en la historia de las ciudades del país. Más de...

El desplazamiento forzado en Colombia, consecuencia del conflicto armado, ha conllevado a una crisis humanitaria sin precedentes para el Estado Colombiano. El objetivo de este trabajo es, por un lado, identificar las causas municipales del desplazamiento en Colombia y, por otro lado, estimar los...

This paper proposes a new identification strategy to estimate the causal impact of illicit drug markets on violence using a panel of Colombian municipalities covering the period 1994-2008. Using a UNODC survey of Colombian rural households involved in coca cultivation, we estimate the...

Este trabajo analiza los efectos de largo plazo de la reforma agraria entendida como la asignación de tierras baldías sobre el desplazamiento forzado, el abandono y despojo de tierras, en un contexto concentración del poder político y aumentos en los retornos de la tierra. A partir de un...

We model the war on drugs in source countries as a conflict over scarce inputs of successive levels of the production and trafficking chain. We explicitly model the vertical structure of the drug trade as being composed of several stages, and study how different policies aimed at different...