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Variety-Skill Complementarity: A Simple Resolution of the Trade-Wage Inequality Anomaly

  • Yoshinori Kurokawa

The Stolper-Samuelson theorem predicts that the relative wage of high-skilled to low-skilled labor will increase in the high-skill abundant U.S. but decrease in low-skill abundant Mexico after trade liberalization, while it actually began to rise in both countries in the late 1980s. We present a simple resolution of this "trade-wage inequality anomaly" in a model of variety trade. Variety trade increases the variety of intermediate goods used by the final good. If the varieties and high-skilled labor are complements, the skill premium rises in both countries. This linking of imports of new foreign varieties?---the extensive margin?---to wage inequality is compatible with evidence. Our numerical examples illustrate that small amounts of variety trade can produce a signi?ficant increase in relative wage.

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Paper provided by Economics, Graduate School of Humanities and Social Sciences, University of Tsukuba in its series Tsukuba Economics Working Papers with number 2009-007.

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Date of creation: Mar 2009
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Handle: RePEc:tsu:tewpjp:2009-007
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1-1-1 Tennodai, Tsukuba, Ibaraki 305-8571

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