This paper develops a model of the war against illegal drugs in both producer and consumer countries. The paper studies the trade-off faced by the government of the drug consumer country between prevention policies (aimed at reducing the demand for drugs) and enforcement policies (aimed at...

This paper develops a theory of firm selection and growth and embeds it into an international trade framework of balanced growth. I assume that firm-level growth is the result of idiosyncratic productivity improvements while there is continuous arrival of new potential producers. Firms can also...

We investigate the effect of education Conditional Cash Transfer programs (CCTs) on teenage pregnancy. Our main concern is with how the size and sign of the effect may depend on the design of the program. Using a simple model we show that an education CCT that conditions renewal on school...

This paper investigates whether there is an S-Curve in Colombia using bilateral and disaggregated quarterly data for the period 1991-2014. More precisely, the short-run effects of a depreciation on the TB are analysed in 27 industries covered by the PAG Free Trade Agreement. The S-Curve found in...

We study firm responses to a large-scale change in apprenticeship regulation in Colombia. The reform requires firms to train, setting apprentice quotas that vary discontinuously in firm size. We document strong heterogeneity in responses across sectors, where firms in sectors with high skill...

Under collusion, firms deviate from current profit maximization in anticipation of future rewards. As current profit maximization places little restrictions on firms' pricing behaviour, collusive conduct is hard to infer. We show that bids from certain firms in the Colombian wholesale...

Short-cycle higher education programs (SCPs), lasting two or three years, capture about a quarter of higher education enrollment in the world and can play a key role enhancing workforce skills. In this paper, we estimate the program-level contribution of SCPs to student academic and labor market...

This paper investigates the effect of Venezuelan transit migration on crime rates in Colombia. We exploit the reopening of the Venezuela-Colombia border in 2016, which has led to a surge in transit migration, and geospatial information about the distinct routes through which the migrants crossed...

In this paper, we show that a reduction in capital goods prices induced by trade policies can stimulate both investment and labor. We exploit a quasi-natural experiment in the form of a trade reform in Colombia to study how firms with differential exposure to reductions in capital goods tariffs...

When did Germany become economically integrated? Within the framework of a gravity model, based on a new data set of about 40,000 observations on trade flows within and across the borders of Germany over the period 1885-1933, I explore the geography of trade costs across Central Europe. There...