Export variety and country productivity
The authors study the link between export product variety and country productivity based on data from 34 industrial and developing countries, from 1982 to 1997. They measure export product variety by the share of U.S. imports on the set of goods exported by each sampled country relative to the world. It is a theoretically sound index which is consistent with within-country GDP maximization, as well as cross-country comparison. They construct country productivity based on relative endowments and product variety. Increases in output product variety improve country productivity as the new mix of output may better use resources of the economy, and improve allocation efficiency. Such effects depend on the elasticity of substitution in production between the different varieties. The more different the varieties are in terms of production, the more efficient it is to use the endowments of the economy when a new variety is available, which leads to productivity gains. In addition, as suggested in the literature, export product variety depends on trade costs, such as tariffs, distance, and transport costs. Such trade cost variables are used as instruments to help the authors identify the effects of export variety on country productivity. Empirical evidence supports their hypothesis. Overall, while export variety accounts for only 2 percent of cross-country productivity differences, it explains 13 percent of within-country productivity growth. A 10 percent increase in the export variety of all industries leads to a 1.3 percent increase in country productivity, while a 10 percentage point increase in tariffs facing an exporting country leads to a 2 percent fall in country productivity.
|Date of creation:||01 Sep 2004|
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- Andrew B Bernard & Jonathan Eaton & J. Bradford Jensen & Samuel Kortum, 2000.
"Plants and productivity in international trade,"
00-08, Center for Economic Studies, U.S. Census Bureau.
- Andrew B. Bernard & Jonathan Eaton & J. Bradford Jensen & Samuel Kortum, 2000. "Plants and Productivity in International Trade," Boston University - Institute for Economic Development 105, Boston University, Institute for Economic Development.
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- David E. Weinstein & Christian Broda, 2004.
"Globalization And The Gains From Variety,"
Econometric Society 2004 Latin American Meetings
327, Econometric Society.
- Christian Broda & David E. Weinstein, 2004. "Globalization and the Gains from Variety," NBER Working Papers 10314, National Bureau of Economic Research, Inc.
- Christian Broda & David Weinstein, 2004. "Globalization and the gains from variety," Staff Reports 180, Federal Reserve Bank of New York.
- David Weinstein & Christian Broda, 2004. "Globalization and the Gains from Variety," Econometric Society 2004 North American Summer Meetings 508, Econometric Society.
- David Weinstein & Christian Broda, 2004. "Globalization and the Gains from Variety," 2004 Meeting Papers 530, Society for Economic Dynamics.
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