New Goods and the Relative Demand for Skilled Labor
利用美国制造业1970年代末至1980年代的四位数行业数据，发现新产品对熟练劳动力的需求强度比旧产品高出40%以上，且新产品可解释约30%的熟练劳动力相对需求增长，为技术偏向性假说提供了新证据。
This paper provides data on the output and factor payments of new goods for every four-digit industry in the U.S. manufacturing sector in the late 1970s and 1980s. For the entire manufacturing sector, the new goods' average skilled-labor intensity exceeds the old goods' by over 40%, and new goods can account for approximately 30% of the increase in the relative demand for skilled labor. Because new goods provide a direct measure of technology, this paper offers new evidence that technology has shifted demand in favor of skilled labor, consistent with the technology skill-complementarity hypothesis. © 2005 President and Fellows of Harvard College and the Massachusetts Institute of Technology.