This paper focuses on the causes of increased wage inequality in OECD countries in recent years and its decomposition into the component factors of trade surges in low wage products and technological change that has preoccupied the trade and wages literature. It argues that the length of production run and degree of fixity of factors is crucial in such analyses. In particular, if the observed wage inequality response to price and technology shocks reflects a short-run response in which factors and output have not adjusted fully across industries, then decomposition analysis of the causes of the observed increases in inequality is substantially altered relative to a long-run factors mobile world. This conclusion applies both when one type of labour has mobility costs and in the Ricardo-Viner case where there is an additional, sectorally immobile factor. Furthermore, only small departures from the fully mobile model can greatly change decompositions. This finding is important because most data used in earlier work are interpreted as reflective of a long-run full mobility response, when this may not be the case. Incorrect conclusions as to how trade surges and technology contribute to wage inequality can be easily drawn, if the data are in fact generated by a short-run adjustment process.
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Length: Date of creation: 2003 Date of revision:
Sep 2002 Handle: RePEc:uwo:uwowop:20032
Contact details of provider: Postal: Department of Economics, Reference Centre, Social Science Centre, University of Western Ontario, London, Ontario, Canada N6A 5C2 Phone: 519-661-2111 Ext.85228 Web page: http://economics.uwo.ca/econref/WorkingPapers/
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References listed on IDEAS Please report citation or reference errors to , or , if you are the registered author of the cited work, log in to your RePEc Author Service profile, click on "citations" and make appropriate adjustments.:
Leamer, Edward E. & Levinsohn, James, 1995.
"International trade theory: The evidence,"
Handbook of International Economics,
in: G. M. Grossman & K. Rogoff (ed.), Handbook of International Economics, edition 1, volume 3, chapter 26, pages 1339-1394
Elsevier.
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George J. Borjas & Richard B. Freeman & Lawrence F. Katz, 1992.
"On the Labor Market Effects of Immigration and Trade,"
NBER Chapters,
in: Immigration and the Workforce: Economic Consequences for the United States and Source Areas, pages 213-244
National Bureau of Economic Research, Inc.
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