SKILL BIAS AND EMPLOYMENT FRICTIONS IN THE U.S. LABOR MARKET 1970–1990*
研究1970-1990年美国大学与高中毕业生失业率、教育工资溢价及大学入学率的同步变化，构建包含内生教育决策的均衡搜索匹配模型，发现技能偏向技术变化和就业摩擦增加能解释大部分观察到的变动。
This article studies simultaneous changes in four labor market variables: the unemployment rates for college and high‐school graduates, the education wage premium, and the level of college participation. It develops an equilibrium search and matching model of the labor market where education is endogenously determined. Then the model is used to investigate quantitatively whether the change in the above labor market variables from 1970 to 1990 in the United States can be traced to changes in the environment. A skill‐biased change in technology together with an increase in employment frictions can explain much of the observed variation in these variables.