Human Capital Specificity: Evidence from the Dictionary of Occupational Titles and Displaced Worker Surveys, 1984–2000
利用《职业名称词典》构建四种基本技能指标，分析人力资本专属性的来源，发现失业工人工资损失与技能组合转换的关联强于行业或职业代码转换，并区分了流体技能与晶体技能。
Measures of four basic skills, constructed from the Dictionary of Occupational Titles, are used to examine the source of human capital specificity. The measures are used to characterize the skill portfolio of each job and to construct distance measures between jobs. Wage losses in the Displaced Worker Surveys are shown to be more closely associated with switching skill portfolios than switching industry or occupation code per se. These switches represent large decreases in the skill portfolio in the postdisplacement job. The recent evidence for industry-specific capital is reexamined. The results suggest a difference between fluid and crystallized skills. (c) 2008 by The University of Chicago.