We develop a monopolistically competitive model of trade with firm heterogeneity - in terms of productivity differences - and endogenous differences in the ‘toughness’ of competition across markets - in terms of the number and average productivity of competing firms. We analyze how these features vary across markets of different size that are not perfectly integrated through trade; we then study the effects of different trade liberalization policies. In our model, market size and trade affect the toughness of competition, which then feeds back into the selection of heterogeneous producers and exporters in that market. Aggregate productivity and average markups thus respond to both the size of a market and the extent of its integration through trade (larger, more integrated markets exhibit higher productivity and lower markups). Our model remains highly tractable, even when extended to a general framework with multiple asymmetric countries integrated to different extents through asymmetric trade costs. We believe this provides a useful modeling framework that is particularly well suited to the analysis of trade and regional integration policy scenarios in an environment with heterogeneous firms and endogenous markups.
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Paper provided by Centro Studi Luca d\'Agliano, University of Milano in its series Development Working Papers with number
201.
Find related papers by JEL classification: F12 - International Economics - - Trade - - - Models of Trade with Imperfect Competition and Scale Economies R13 - Urban, Rural, and Regional Economics - - General Regional Economics - - - General Equilibrium and Welfare Economic Analysis of Regional Economies
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Jeffrey R. Campbell & Hugo A. Hopenhayn, 2002.
"Market Size Matters,"
NBER Working Papers
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[Downloadable!] (restricted)
Other versions:
Gianmarco Ottaviano & Takatoshi Tabuchi & Jacques-FranÁois Thisse, 2002.
"Agglomeration and Trade Revisited,"
International Economic Review,
Department of Economics, University of Pennsylvania and Osaka University Institute of Social and Economic Research Association, vol. 43(2), pages 409-436, May.
[Downloadable!] (restricted)
Other versions:
OTTAVIANO, Gianmarco & TABUCHI, Takatoshi & THISSE, Jacques-Franois, 1999.
"Agglomeration and trade revisited,"
CORE Discussion Papers
1999041, Université catholique de Louvain, Center for Operations Research and Econometrics (CORE).
[Downloadable!]
Gianmarco Ottaviano & Takatoshi Tabuchi & Jacques-Francois Tissse, 1999.
"Agglomeration and Trade Revisited,"
CIRJE F-Series
CIRJE-F-65, CIRJE, Faculty of Economics, University of Tokyo.
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Cited by: (explanations, Please report citation or reference errors to , or , if you are the registered author of the cited work, log in to your RePEc Author Service profile, click on "citations" and make appropriate adjustments.) This item has more than 25 citations. To prevent cluttering this page, these citations are listed on a separate page.