Posts by Collection


Grading Fiscal Policy in Latin America in the Last Decade

Published in IDB Policy Briefs, 2014

Fiscal policy in Latin America has been historically imprudent and continues to be viewed with skepticism. At the same time, most countries have remained out of trouble for several years and were able to successfully conduct proactive countercyclical fiscal policy to fight the Great Recession, a historical first. This paper examines the last decade to assess progress, highlight weaknesses, and chart the way forward.


Unpacking the MPI : A Decomposition Approach of Changes in Multidimensional Poverty Headcounts

Listed in World Bank Policy Research Working Paper Series

Coverage: Vox Lacea

Blog post

Multidimensional measures of poverty have become standard as complementary indicators of poverty in many countries. This paper proposes an application of existing methodologies that decompose welfare aggregates -based on counterfactual simulations- to break up the changes of the multidimensional poverty headcount into the variation attributed to each of its dimensions.

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Identification, Estimation, and Visualization in the Panel Event Study Design

We review approaches to identification in the linear panel event-study design and discuss some of their connections. We illustrate strengths and weaknesses of the corresponding estimators using simulations. We discuss the role of “event study plots” commonly presented in applied research, and make some suggestions on the construction of these plots.

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The Minimum Wage in Formal and Informal Sectors: Evidence from an Inflation Shock

Published in World Development, 2020

Coverage: HKUST-IEMS , La Silla Vacia

I estimate the effect of the minimum wage on formal wages, informal wages, and employment in Colombia. I exploit an unexpected increase in the real minimum wage during the 1999 Colombian economic crisis to estimate short- term effects of the minimum wage along the distribution of wages in both sectors. I find evidence of wage responses, with a stronger incidence in the formal sector.

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Better or Worse Job Accessibility? Understanding Changes in Spatial Mismatch at the Intra-urban Level in Medellín


We analyze accessibility to jobs through different transportation modes and the extent of job spatial mismatch at the intra-urban level in a developing country city. We use data from Medellín, Colombia, from 2012 to 2017, to measure accessibility using employment weighted by travel times. We find that despite the continuous investment in public transportation and transport infrastructure, spatial mismatch in Medellín has increased, and it is considerably larger for job seekers and workers using public transport compared to those using private transport.


Disentangling the Effects of Large Minimum Wage and VAT Changes on Prices: Evidence from Mexico


Coverage: Banxico , El CEO , 24 Horas

In January 2019, the minimum wage in the Mexican border with the United States increased by 100 percent. At the same time, the value-added tax (VAT) rate decreased by half. We propose an identification strategy that allows us to separate the effects of the minimum wage and the VAT on prices. We find that the increase in the minimum wage is associated with economically and statistically significant increases in the prices of VAT goods, and with smaller, imprecisely estimated increases for Non-VAT goods, concentrated in food Non-VAT goods. The increments in prices due to the minimum wage were more than offset by decreases associated with the VAT, so in the absence of both policy changes, average prices would have been higher.


City Minimum Wages and Spatial Equilibrium Effects (Job Market Paper)

Listed in SocArXiv

Winner of the 2018 S4 Graduate Student Paper Prize

Coverage: Marginal Revolution

Local minimum wage laws are becoming common across U.S. cities, and their effects may be different from effects of state or nation-wide minimum wage policies. I study the effect of changes in minimum wages on spatial equilibria in local labor markets. Using residence and workplace data for the U.S., I analyze how commuting, residence and work locations change across city and state borders when minimum wages change on either side of the border.

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Microeconomic Analysis

Undergraduate course, Universidad del Rosario, Department of Economics, 2010

Introductory microeconomics course for political science and international relations students.

Microeconomics I

Undergraduate course, Universidad del Rosario, Department of Economics, 2017

Introductory microeconomics course for economics and finance students.

Urban Economics

Graduate course, ITAM, 2019

Urban Economics for Graduate Students