中文摘要
本文构建了一个包含多维技能与任务部分专业化的一般均衡模型,以量化若干决定因素对1980年至2000年间职业内部不平等增长的影响。该模型引入了一个新的需求变动影响不平等的机制:同一职业内部的工人执行多种且不同的任务。本文利用微观数据对模型进行结构估计,并将不平等的增长归因于三个来源:职业需求的变化、职业任务内容的变化,以及劳动力构成的变化。研究结果表明,任务内容的变化解释了职业内部不平等增长的大部分。(JEL D63, J21, J22, J23, J24)
Abstract
I develop a general equilibrium model featuring multidimensional skills and partial specialization in tasks to quantify the impact of several determinants on within-occupation inequality growth from 1980 to 2000. The model introduces a new mechanism by which demand shifts affect inequality: Workers within the same occupation perform multiple and different tasks. I structurally estimate the model using microdata and account for inequality growth due to three sources: changes in occupation demand, changes in the task content of occupations, and changes in labor composition. My findings indicate that changes in task content explain the majority of within-occupation inequality growth. (JEL D63, J21, J22, J23, J24)