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Begin New Search Author Daniel Mejia Publication Year within 25 Years

1. The Health Consequences of Aerial Spraying of Illicit Crops: The Case of Colombia

Author:
Adriana Camacho and Daniel Mejia
Publication Date:
06-2015
Content Type:
Working Paper
Institution:
Center for Global Development
Abstract:
This paper exploits the variation in aerial spraying across time and space in Colombia and employs a panel of individual health records in order to study the causal effects of aerial spraying of herbicides (Glyphosate) on short term health-related outcomes. The results show that exposure to the herbicide used in aerial spraying campaigns increases the number of medical consultations related to dermatological and respiratory related illnesses and the number of miscarriages. This finding is robust to the inclusion of individual fixed effects, which compares the prevalence of these medical conditions for the same person under different levels of exposure to the herbicide used in the aerial spraying program over a period of 5 years. Also, the results are robust to controlling for the extent of coca cultivation of illicit crops in the municipality of residence.

2. Scarcity without Leviathan: The Violent Effects of Cocaine Supply Shortages in the Mexican Drug War

Author:
Juan Camilo Castillo, Daniel Mejia, and Pascual Restrepo
Publication Date:
02-2014
Content Type:
Working Paper
Institution:
Center for Global Development
Abstract:
Using the case of the cocaine trade in Mexico as a relevant and salient example, this paper shows that scarcity leads to violence in markets without third party enforcement. We construct a model in which supply shortages increase total revenue when demand is inelastic. If property rights over revenues are not well defined because of the lack of reliable third party enforcement, the incentives to prey on others and avoid predation by exercising violence increase with scarcity, thus increasing violence. We test our model and the proposed channel using data for the cocaine trade in Mexico. We found that exogenous supply shocks originated in changes in the amount of cocaine seized in Colombia (Mexico's main cocaine supplier) create scarcity and increase drug-related violence in Mexico.
Topic:
Crime, Economics, War on Drugs, Narcotics Trafficking, and Law Enforcement
Political Geography:
Colombia, Latin America, and Mexico

3. Scarcity without Leviathan: The Violent Effects of Cocaine Supply Shortages in the Mexican Drug War

Author:
Juan Camilo Castillo, Daniel Mejia, and Pascual Restrepo
Publication Date:
02-2014
Content Type:
Working Paper
Institution:
Center for Global Development
Abstract:
Using the case of the cocaine trade in Mexico as a relevant and salient example, this paper shows that scarcity leads to violence in markets without third party enforcement. We construct a model in which supply shortages increase total revenue when demand is inelastic. If property rights over revenues are not well defined because of the lack of reliable third party enforcement, the incentives to prey on others and avoid predation by exercising violence increase with scarcity, thus increasing violence. We test our model and the proposed channel using data for the cocaine trade in Mexico. We found that exogenous supply shocks originated in changes in the amount of cocaine seized in Colombia (Mexico's main cocaine supplier) create scarcity and increase drug-related violence in Mexico.
Topic:
Crime, War on Drugs, and Narcotics Trafficking
Political Geography:
Colombia and Mexico