After reading and thinking seriously about the teachings in Tim Harford’s books, The Undercover Economist and the Logic of Life, they confirmed me that every behavior and act, not only in the market but also along life, have hidden interests and everybody is conscious about them. What do I...

The form of the Engel curve has long been a subject of discussion in applied econometrics and until now there has no been definitive conclusion about its form. In this paper an additive partially linear model is used to estimate semiparametrically the effect of total expenditure in the context...

This paper analyses how the institutional processes, the school management as well as the contexts in which the school and the students are circumscribed, could impact the performance in the high-school graduation-year test (ICFES). A survey was applied with the purpose of know the actions and...

In this paper we are interested in investigating the effects of the threepart tariffs system on consumers’ behavior in the local fixed telephone service provided by the incumbent Telecommunications Company une in Medellín, which was authorized by the Telecommunications Regulatory Commission...

This paper evaluates transformative policy innovations with respect to security and taxation in the three main Colombian cities: Bogotá, Medellín, and Cali. In the first two, such policies were associated with huge success. Elsewhere we (Gutiérrez et al. 2009) have tagged these transformation...