This paper evaluates the main measures that have been used to regulate the interconnection prices in the telecommunication sector. We show that many of the regulations that are applying the vast majority of countries have very little theoretical support, and we identify the restrictions that...

Este trabajo analiza los efectos de la imposición directa e indirecta sobre el bienestar social, en un modelo de entrada en el que las empresas practican discriminación espacial de precios. Se muestra que en un oligopolio la imposición directa puede afectar positiva o negativamente al...

The dynamics of oil prices in the past few years and their vertiginous rise observed during 2008 have captured the attention of academia and governments. This paper proposes an analysis of the petroleum market, making emphasis in the crude benchmarks WTI and Brent, the world reserves...

With the restructuring of the Spanish oil sector during the 1980s and early 1990s, a highly concentrated oligopoly emerged in the automotive fuels market. The restructuring ended up with the abolishment of the sate oil monopoly in January 1993. A system of price ceiling replaced administered...

Chronic renal insufficiency is one of the highest cost pathologies of greater financial impact for the general system of social security health care in Colombia. High-cost case concentration in some health entities made it necessary to distribute resources and patients to other entities in order...

Colombia adopted a health care system with regulated competition in the interaction of several markets: insurance, medical services, hospitalization and drugs. In this regulatory scheme, a collegiate body and two central dependencies of the executive branch intervene. Overall, the regulation...