Merged firms are typically rather complex organizations. Accordingly, me rger has a more profound effect on the structure of a market than simply reducing the number of competitors. We show that this may render horizontal mergers profitable and welfare – improving even if costs are linear. The...

During the recent financial crisis, euro area firms, and especially Small and Medium-sized Enterprises, have been reporting acute problems of access to external finance. Using firm-level replies to the SME survey on access to finance, we use two indicators of financing constraints based on...

We model retail-price recommendations (RPRs) as a communication device in vertical supply relations with private manufacturer information on production costs and consumer demand. With static trade, RPRs are irrelevant, and the equilibrium outcome is inefficient. With repeated trade, RPRs can...

This paper provides evidence that learning about demand is an important driver of firms' dynamics. We present a simple model with Bayesian learning in which firms are uncertain about their idiosyncratic demand parameter in each of the markets they serve, and update their beliefs as noisy...

This paper analyzes a merger of large manufacturers with divestiture in the French coffee market. In contrast to previous approaches used to study the effects of upstream divestitures on prices and welfare, we model the vertical market structure. First, our results show that the standard policy...

Here, we study vertical foreclosure in a dynamic setup with learning-by-doing production technologies. There is a downstream monopoly and an upstream duopoly, where manufacturers produce differentiated products and can gain proficiency through the accumulation of their production. We study the...

The objective of the article is to construct a mathematical model of partial equilibrium in competitive markets with heterogeneous economic agents. On one hand, consumers with Cobb - Douglas preferences, perfect substitute goods, quasilinear and Stone - Geary preferences are considered, in...

ResumenUn modelo bisectorial de equilibrio general, que incluía las drogas como bienes básicos, fue relativamente exitoso para explicar el desperdicio de recursos que genera una guerra contra las drogas (Ortiz, 2003). Debido al supuesto de productividad constante, el modelo predijo que los...

We determine the optimal health policy mix when the average utility of patients in-creases with the supply of drugs available in a therapeutic class. Health risk coverage rely on two instruments, copayment and reference pricing, that affect the supported risk composed by health expenses and...

En este documento se analizan los retos de la política de competencia en el sector de las tarjetas de pago a la luz de las enseñanzas de la teoría de los mercados de dos lados, para entregar elementos sólidos de análisis que contribuyan a un mejor entendimiento de la industria y de la...