NATIONAL BUREAU OF ECONOMIC RESEARCH
NATIONAL BUREAU OF ECONOMIC RESEARCH

The Impact of Trade on Intraindustry Reallocation and Aggregate Industry Productivity: A Comment

Richard E. Baldwin, Frederic Robert-Nicoud

NBER Working Paper No. 10718
Issued in August 2004
NBER Program(s):   ITI   PR

Melitz (2003) demonstrates that greater trade openness raises industry productivity via a selection effect and via a production re-allocation effect. Our comment points out that the set-up assumed in the Melitz model displays a trade off between static and dynamic efficiency gains. That is, although freer trade improves industry productivity in a level sense, it harms it in a growth sense. To make this point as simply as possible, we introduce a slight modification to the model that endogenises the growth rate of industry productivity and we show that liberalisation slows growth.

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Document Object Identifier (DOI): 10.3386/w10718

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