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两部门匹配模型中的供给与需求

Supply and Demand in a Two-Sector Matching Model
Journal of Political Economy · 2020 · Paweł Gola

中文摘要

我在一个嵌套了Roy(1951)和Becker(1973)经典模型的框架中考察技术变化的分配后果:工人自选择进入两个部门,然后在每个部门内与异质性企业匹配。在该模型中,技术变化可分解为以下两方面的变化: 各部门对相同技能集的渴求程度,以及 各部门中产出随技能变化的程度。通过为这两类变化分别推导单调比较静态结果,我得以对技术变化的分配后果提供全面的阐释。

Abstract

I examine the distributional consequences of technological change in a framework that nests Roy’s (1951) and Becker’s (1973) classical models: workers self-select into two sectors and then match with heterogeneous firms within each sector. In this model, technological change can be decomposed into changes in (i) the degree to which sectors covet the same skill sets and (ii) the extent to which output varies with skill in each sector. By deriving monotone comparative statics results for each of these two types of changes, I am able to provide a comprehensive account of the distributional consequences of technological change.
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