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Publications:

“Populist Policies in the Transition to Democracy” (with C.E. Posada), European Journal of Political Economy, 23(4), 932-953, December, 2007.

“The War Against Drug Producers” (with H. Grossman), Economics of Governance, 9(1), 5-23, January, 2008.
--- In the news:
UCL Press Release - ESWC-2005.
El Espectador (Armando Montenegro Op-Ed, in Spanish).

“Unequal Opportunities and Human Capital Formation” (with M. St-Pierre), Journal of Development Economics, 86(2), 395-413, June, 2008.

“Capital Destruction, Optimal Defense and Economic Growth”, (with C.E. Posada), Journal of World Economic Review 1(1), 2006.

Working papers and work in progress:

“Human Capital Formation, Inequality, and Competition for Jobs” (with M. St-Pierre), This version: March 2008.

“Informalidad: teoría e implicaciones de política” (with C.E. Posada), This version (in spanish): September 2007.

“Cocaine production and trafficking: What do we know?” (with C.E. Posada), Chapter prepared for the Project on the Development Impact of the Illegal Drug Trade, The World Bank, This version: May 2008.

“NEW: "The war on Illegal Drug Production and Trafficking: An economic evaluation of Plan Colombia” (with P. Restrepo), 2009, March.

“Non-technical summary of this paper"

“Resumen no técnico de este artículo"

This paper in the news:

BBC (in spanish).
Newsweek (in english).
El Espectador (in spanish).
Caracol Radio (in spanish).
Nota Uniandina (in spanish).
Interview with Gazeta Wyborcza (in polish).
Tvkodnik Powszenchv (in polish).
El Telégrafo (in spanish).
Op-ed El espectador (in spanish).

“NEW: The War on Illegal Drugs in Producer and Consumer Countries: A simple analytical framework” CESifo working paper No. 2459, 2008, November.

“NEW: The demographic transition in Colombia: Theory and evidence” (with M.T. Ramirez and J. Tamayo), Borradores de Economomia No. 538, November, 2008..

“To cheat or not to cheat?: That is the (student´s) question” (with A. Ordoñez), In progress.

“Informality and optimal public policy” (with D. Bardey and C.E. Posada), In progress.

“Formality or informality?: The government´s role on the choice of workers and firms” (with S. Rozo), In progress.

Other writings:

“Conflict and Economic Growth: A Survey of the Theoretical Links”, In Webpondo (Nov. 2004).

Review of: “Growth, Inequality and Globalization: Theory, History and Policy”, by P. Aghion and J. Williamson, Raffaele Mattioli Lecures, Cambridge University Press. In Webpondo (in Spanish) (Jun. 2004).

“NEW: Seguridad de los sindicalistas y TLC”, In Spanish (June 2009).

“Comentario en lasillavacia.com”, (in Spanish).