Antitrust & Competition Policy Blog

Editor: D. Daniel Sokol
University of Florida
Levin College of Law

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Friday, February 24, 2012

Vert-zonal Differentiation in Monopolistic Competition

Posted by D. Daniel Sokol

Francesco Di Comite (Economics School of Louvain), Jean-Francois Thisse (Economics School of Louvain) and Hylke Vandenbussche (Economics School of Louvain) have written about Vert-zonal Differentiation in Monopolistic Competition.

ABSTRACT: The pattern of trade observed from firm-product-country data calls for a new generation of models. To address the unexplained variation in the data, we propose a new model of monopolistic competition where varieties enter preferences non-symmetrically, capturing both horizontal and vertical differentiation in an unprecedented way. Together with a variable elasticity of substitution, competition effects, varying markups and prices across countries, this results in a tractable model whose predictions differ from existing ones. Using the population of Belgian exporters, our model succeeds in explaining the hitherto unexplained variation. The implications call for a re-thinking of earlier results and measurement practices.

http://lawprofessors.typepad.com/antitrustprof_blog/2012/02/vert-zonal-differentiation-in-monopolistic-competition.html

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