Este trabajo trata de comprobar si la eficiencia productiva del Grupo Telefónica S.A. de España ha mejorado luego de ser privatizada. Se ha utilizado este caso por ser una empresa representativa en la industria de las telecomunicaciones globales. La evidencia empírica indica que las empresas...

In the adjudication of several stages of an infrastructure project to develop a public service, when there is only private participation, there are strong incentives to reduce costs over the life of the project, which may affect the quality of service. In this paper, after a model extension to...

This article presents, first, a graphical analysis of the well-known equality of saving and investment for the cases of Spain and the Eurozone between 2000 and 2011. Then, correlation and Granger causality between government deficit and private deficit in both economies is analyzed. Since public...

In this paper we study the impact on growth due to a technological change generated by the government. At the beginning the required main conditions to create new technologies are defined and the conditions for the macroeconomic equilibrium are established. Under a deterministic model the...