Purpose: The purpose of this paper is to examine the impact of fossil fuel prices – crude oil, natural gas and coal – on different electricity prices in Mexico. The use of alternative variables for electricity price helps to increase the robustness of the analysis in comparison to previous...

This article analyses a model in which a local monopolist that produces low-quality goods competes against a foreign competitive industry that produces a higher quality version of the goods. We use the model to analyse the welfare implications of introducing a unit tax on the local producer,...

This paper studies technology choice as a relevant aspect to be considered when analyzing price discrimination and welfare. Our results reinforce the traditional wisdom that an increase in output is a necessary condition for price discrimination to improve social welfare. But we also find that...