This paper proposes a mathematical competition model for mobile operators based on a price competitive equilibrium with horizontally differentiated offers "à la Hoteling" and quality variations between companies. The model’s parameters can be specified from observable data. The proximity...

We estimate the macroeconomic benefits and international spillovers of an increase in competition using a general-equilibrium simulation model with nominal rigidities and monopolistic competition in product and labor markets. We draw three conclusions after calibrating the model to the euro area...

We estimate the macroeconomic benefits and international spillovers of an increase in competition using a general-equilibrium simulation model with nominal rigidities and monopolistic competition in product and labor markets. We draw three conclusions after calibrating the model to the euro area...

This paper examines the economic consequences of code-sharing agreements (CSA) in the airline market. CSA can be viewed as a vertical contract between airlines, which sometimes co-own the code-shared flights. Our structural model aims to understand how and to what extent CSA distorts market...

The theoretical literature of industrial organization shows that the distances between consumers and firms have first-order implications for competitive outcomes whenever transportation costs are large. To assess these effects empirically, we develop a structural model of competition among...

Using a general-equilibrium simulation model featuring nominal rigidities and monopolistic competition in product and labor markets, this paper estimates the macroeconomic benefits and international spillovers of an increase in competition. After calibrating the model to the euro area vs. the...

This paper proposes a three-stage model of airline network competition, in which an airline's strategic decisions include its network structure (first stage), flight frequency (second stage), and pricing of all nonstop and one-stop services (third stage). The model links direct and indirect...

Using a general-equilibrium simulation model featuring nominal rigidities and monopolistic competition in product and labor markets, this paper estimates the macroeconomic benefits and international spillovers of an increase in competition. After calibrating the model to the euro area vs. the...

This paper investigates the effect of grouping students by prior achievement into different classes (or schools) in settings where students are competing for admission to programs offering only a limited number of places. We first develop a model that identifies the conditions under which the...