This paper develops a simple model of the war against illegal drugs in producer and consumer countries. Our analysis shows how the equilibrium quantity of illegal drugs, as well as their price, depends on key parameters of the model, among them the price elasticity of demand, and the...

I study the causal effect of violence against social leaders on coca cultivation and land restitution requests in the Colombian context from 2012 to 2018. Using the timing of unexpected killings of social leaders in an event study approach, I provide evidence that the start of the violence...

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...

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...

This paper provides a thorough economic evaluation of the anti-drug policies implemented in Colombia between 2000 and 2006 under the so-called Plan Colombia. The paper develops a game theory model of the war against illegal drugs in producer countries. We explicitly model illegal drug markets,...

Civilian displacement is a common phenomenon in developing countries confronted with internal conflict. While displacement directly affects forced migrants, it also contributes to deteriorating labor conditions of vulnerable groups in receiving communities. For the displaced population, the...

This article highlights a nefarious effect of elections during civil wars by demonstrating that they can facilitate the displacement of civilians. This occurs through two main mechanisms: they reveal information about civilians' loyalties directly to armed groups; and they threaten the status...

Spanish Abstract: Este artículo investiga la relación entre el despojo de tierras a los campesinos y el origen del conflicto civil en Colombia. Usando un enfoque de variables instrumentales con efectos fijos de pares de vecinos mostramos que el despojo histórico de las tierras de los...

Designing victims' reparation policies and solving agrarian disputes are fundamental aspects to build peace after a civil conflict. In 2014, a ceasefire with the oldest Latin-American guerrilla took place in Colombia and a peace agreement was signed in 2016. The Land Restitution Policy (LRP)...

I study the causal effect of the foreign aid for development assistance —implemented by the U.S. Agency for International Development (USAID)— on the intensity of municipality-level armed conflict in Colombia, for the period 2009-2013. To address potential endogeneity biases, I use a...