Determining the degree of informational asymmetry is a major topic in the literature of modern microstructure. In this paper, we review and analyze the suitability of the models for estimating the probability of informed trading [Easley et al., 1996; Nyholm, 2002, 2003]. The empirical analysis is...

This paper analyses the selection of teachers in basic and media education in Colombia under an adverse selection model. We monitor the teacher´s wages and the institutional change, and the results of one of the contests for Medellin. The relative wages of attachment to the teaching profession...

This paper presents a theoretical conceptualization of Colombia’s National Council of Health Social Security (CNSSS). Using a simple framework of theory of games, it analyzes the voting power of its members, and estimates the indexes of Banzhaf, Shapley-Shubik and Coleman. It shows that the...