This is a brief introduction to the special issue on “New Developments in Modeling and Estimation of Economic Cycles” . The concept and definition of economic and business cycles are discussed together with two main schools of thought, the Keynesian and the neoclassical. Until the Keynesian...

This paper points out the main e1ements under analysis in a study aimed at bringing out the relevant causes of inflation in each kind of economic structure. Thus, it stresses the necessity of a direct answer to questions like when, where, why and how an inflationary process is generated as well...

Se presentan y analizan los índices de desigualdad de Gini, de Atkinson y de la entropía generalizada. Para este último se estudian los casos particulares de Theil y de Bourguignon. Se discuten los méritos de cada uno de dichos índices desde el punto de vista del cumplimiento de propiedades...