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寻找工作保障与失去工作的后果

Searching for Job Security and the Consequences of Job Loss
Econometrica · 2023 · Gregor Jarosch

中文摘要

失业伴随着巨大的现值收入损失,而这一现象无法用失业与劳动力市场政策的标准模型加以解释。我提出一个精炼的摩擦性劳动力市场模型,其中各工作的失业风险不同,工人同时进行在职搜寻与非在职搜寻。这形成了一个带有易滑落下层阶梯的工作阶梯,使得失业期引发更多的失业期。我允许人力资本对脱离工作的时长作出反应,并利用德国社会保障数据对该框架进行估计。该模型刻画了工资、就业与失业风险对失业的联合反应,而我对这一反应进行了实证测度。“失业疤痕”的关键驱动因素是工作保障的丧失,及其与人力资本演变——尤其是对更好就业的搜寻——之间的相互作用。

Abstract

Job loss comes with large present value earnings losses which elude workhorse models of unemployment and labor market policy. I propose a parsimonious model of a frictional labor market in which jobs differ in terms of unemployment risk and workers search off‐ and on‐the‐job. This gives rise to a job ladder with slippery bottom rungs where unemployment spells beget unemployment spells. I allow for human capital to respond to time spent out of work and estimate the framework on German Social Security data. The model captures the joint response of wages, employment, and unemployment risk to job loss which I measure empirically. The key driver of the “unemployment scar” is the loss in job security and its interaction with the evolution of human capital and, in particular, the search for better employment.
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