NATIONAL BUREAU OF ECONOMIC RESEARCH
NATIONAL BUREAU OF ECONOMIC RESEARCH

NBER Working Papers by Thierry Mayer

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Working Papers

July 2016Product Mix and Firm Productivity Responses to Trade Competition
with Marc J. Melitz, Gianmarco I.P. Ottaviano: w22433
We document how demand shocks in export markets lead French multi-product exporters to re-allocate the mix of products sold in those destinations. In response to positive demand shocks, those French firms skew their export sales towards their best performing products; and also extend the range of products sold to that market. We develop a theoretical model of multi-product firms and derive the specific demand and cost conditions needed to generate these product-mix reallocations. Our theoretical model highlights how the increased competition from demand shocks in export markets – and the induced product mix reallocations – induce productivity changes within the firm. We then empirically test for this connection between the demand shocks and the productivity of multi-product firms exporting...
August 2012Time to Ship During Financial Crises
with Nicolas Berman, José De Sousa, Philippe Martin: w18274
We show that the negative impact of financial crises on trade is magnified for destinations with longer time-to-ship. A simple model where exporters react to an increase in the probability of default of importers by increasing their export price and decreasing their export volumes to destinations in crisis is consistent with this empirical finding. For longer shipping time, those effects are indeed magnified as the probability of default increases as time passes. Some exporters also decide to stop exporting to the crisis destination, the more so the longer time-to-ship. Using aggregate data from 1950 to 2009, we find that this magnification effect is robust to alternative specifications, samples and inclusion of additional controls, including distance. The firm level predictions are also ...

Published:

April 2011Market Size, Competition, and the Product Mix of Exporters
with Marc J. Melitz, Gianmarco I.P. Ottaviano: w16959
We build a theoretical model of multi-product firms that highlights how competition across market destinations affects both a firm's exported product range and product mix. We show how tougher competition in an export market induces a firm to skew its export sales towards its best performing products. We find very strong confirmation of this competitive effect for French exporters across export market destinations. Theoretically, this within firm change in product mix driven by the trading environment has important repercussions on firm productivity. A calibrated fit to our theoretical model reveals that these productivity effects are potentially quite large.

Published: Thierry Mayer & Marc J. Melitz & Gianmarco I. P. Ottaviano, 2014. "Market Size, Competition, and the Product Mix of Exporters," American Economic Review, American Economic Association, vol. 104(2), pages 495-536, February. citation courtesy of

Contact and additional information for this authorAll NBER papers and publicationsNBER Working Papers only

 
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