The present article analyses the evolution of the concentration of the Colombian electrical generation market based on the technological diversification indexes and H-H and C-4 concentration indexes, during the period 1995-2004. Concentration herein is an enterprise behavior which, from the...

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...

Este trabajo presenta una investigación teórica sobre los mecanismos de mercado que permiten asignar los recursos eficientemente y alcanzar la confiabilidad óptima en mercados sujetos a utilidades como es el de generación de electricidad. En particular, se destaca la necesidad de proveer...