I study how firms actually compete in nonlinear tariffs by analyzingwhether the incumbent and entrant's decisions to offer a given number oftariff options are interrelated. The goal is to shed some light on thosedynamic and strategic aspects of tariff menus that are currently ignoredby...

We present a model of neighborhood effects in wage payment delays. Positive feedback arises because each employer’s arrears affect the late payment costs faced by other firms in the same local labor market, resulting in a strategic complementarity in the practice. The model is estimated on...

The term spread may play a major role in a monetary policy rule whenever data revisions of output and inflation are not well behaved. In this paper we use a structural approach based on the indirect inference principle to estimate a standard version of the New Keynesian Monetary (NKM) model...

This dissertation studies the roles of comparative advantage, monopolistic competition, and firm-level heterogeneity in international trade.The first essay investigates cross-country and cross-industry variation in the fractions of exporters among domestic firms. The paper presents a model of an...

Replaced with revised version of paper 08/06/10.

This covers the market structure of Monopolistic Competition. It presents the characteristics of this market structure by contrasting them to those of Perfect Competition and Monopoly. It explains why these characterisics are important and explains that these have implications for the revenue...

Consumers voluntarily pay significant price premiums to acquire unobservable environmental attributes in green markets. This paper considers the performance of eco-certification policy under circumstances where consumers cannot discern environmental attributes in goods, but are able to form...

Estudiamos la política monetaria óptima desde una perspectiva atemporal en un modelo general de fijación de precios dependiente del estado (state-dependent pricing). Las empresas tienen poder monopolístico y están sujetas a perturbaciones idiosincráticas a sus costes de menú. Encontramos...