This paper sets out a basic heterogeneous-firms trade model that is closely akin to Melitz (2003). The positive and normative properties of the model are studied in a manner intended to highlight the core economic logic of the model. The paper also studies the impact of greater openness at the firm-level and aggregate level, focusing on changes in the number and type of firms, trade volumes and prices, and productivity effects. The normative effects of liberalisation are also studied and here the paper focuses on aggregate gains from trade, and income redistribution effects, showing inter alia that the model is marked by a Stolper-Samuelson like effect. A number of empirically testable hypotheses are also developed. These concern the impact of greater openness on the firm-level trade pattern, the variance of unit-prices, the stock market valuation of firms according to size, and the lobbying behaviour by size.
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Paper provided by National Bureau of Economic Research, Inc in its series NBER Working Papers with number
11471.
Length: Date of creation: Jul 2005 Date of revision: Handle: RePEc:nbr:nberwo:11471
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Find related papers by JEL classification: F1 - International Economics - - Trade F2 - International Economics - - International Factor Movements and International Business F3 - International Economics - - International Finance
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