A Melitz-style model of monopolistic competition with heterogeneous firms is integrated into a simple New Economic Geography model to show that the standard assumption of identical firms is neither necessary nor innocuous. We show that re-locating to the big region is most attractive for the most productive firms; this implies interesting results for empirical work and policy analysis. A 'selection effect' means standard empirical measures overestimate agglomeration economies. A 'sorting effect' means that a regional policy induces the highest productivity firms to move to the core while the lowest productivity firms to move to the periphery. We also show that heterogeneity dampens the home market effect.
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Paper provided by National Bureau of Economic Research, Inc in its series NBER Working Papers with number
11650.
Length: Date of creation: Oct 2005 Date of revision: Handle: RePEc:nbr:nberwo:11650
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Find related papers by JEL classification: H32 - Public Economics - - Fiscal Policies and Behavior of Economic Agents - - - Firm P16 - Economic Systems - - Capitalist Systems - - - Political Economy of Capitalism
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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.
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