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Report
Mismatch unemployment
We develop a framework where mismatch between vacancies and job seekers across sectors translates into higher unemployment by lowering the aggregate job-finding rate. We use this framework to measure the contribution of mismatch to the recent rise in U.S. unemployment by exploiting two sources of cross-sectional data on vacancies: JOLTS and HWOL (a new database covering the universe of online U.S. job advertisements). Mismatch across industries and occupations explains at most one-third of the total observed increase in the unemployment rate. Geographical mismatch plays no apparent role. ...
Report
Unemployment Benefits and Unemployment in the Great Recession: The Role of Equilibrium Effects
Equilibrium labor market theory suggests that unemployment benefit extensions affect unemployment by impacting both job search decisions by the unemployed and job creation decisions by employers. The existing empirical literature focused on the former effect only. We develop a new methodology necessary to incorporate the measurement of the latter effect. Implementing this methodology in the data, we find that benefit extensions raise equilibrium wages and lead to a sharp contraction in vacancy creation and employment and a rise in unemployment.
Working Paper
Interregional Migration and Housing Vacancy: Theory and Empirics
We examine homeowner vacancy rate interdependencies over time and space through the channel of migration. Our theoretical analysis extends the Wheaton (1990) search and matching model for housing by incorporating interregional spillovers due to some households’ desires to migrate between regions and by allowing for regime-switching behavior. Our empirical analysis of vacancy rates for the entire U.S. and for Census regions provides visual evidence for the possibility of regime-switching behavior. We explicitly test our model by estimating basic Vector Autoregression (VAR) and ...
Working Paper
Downskilling: changes in employer skill requirements over the business cycle
Using a novel database of 82.5 million online job postings, we show that employer skill requirements fell as the labor market improved from 2010 to 2014. We find that a 1 percentage point reduction in the local unemployment rate is associated with a roughly 0.27 percentage point reduction in the fraction of jobs requiring at least a bachelor?s degree and a roughly 0.23 percentage point reduction in the fraction requiring five or more years of experience. This pattern is established using multiple measures of labor availability, is bolstered by similar trends along heretofore unmeasured ...
Working Paper
Upskilling: do employers demand greater skill when skilled workers are plentiful?
The Great Recession and subsequent recovery have been particularly painful for low-skilled workers. From 2007 to 2012, the unemployment rate rose by 6.4 percentage points for noncollege workers while it rose by only 2.3 percentage points for the college educated. This differential impact was evident within occupations as well. One explanation for the differential impact may be the ability of highly skilled workers to take middle- and low-skilled jobs. Indeed, over this period the share of workers with a college degree in traditionally middle-skill occupations increased rapidly. Such growth in ...
Working Paper
The Dual Beveridge Curve
When firms decide to post a vacancy they can hire from the pool of unemployed workers or they can poach a worker from another firm. In this paper we show that if there are two different matching processes, one for unemployed workers and another one for job-to-job transitions, then implications for the Beveridge curve are potentially very different, influencing the effects of monetary policy on unemployment. We show that over the years the hiring process and how job postings are used as an input into this process has changed dramatically.
Working Paper
Vacancy Chains
Replacement hiring—recruitment that seeks to replace positions vacated by workers who quit—plays a central role in establishment dynamics. We document this phenomenon using rich microdata on U.S. establishments, which frequently report no net change in their employment, often for years at a time, despite facing substantial gross turnover in the form of quits. We devise a tractable model in which replacement hiring is driven by a novel structure of frictions, combining firm dynamics, on-the-job search, and investments into job creation that are sunk at the point of replacement. A key ...
Does Employers’ Worker Poaching Explain the Beveridge Curve’s Odd Behavior?
Increased worker job-hopping may help explain the odd-shaped post-COVID Beveridge curve and the underlying employment behavior it depicts.
Working Paper
The Dual Beveridge Curve
The recent behavior of the Beveridge Curve has been puzzling, significantly differs from past recessions, and is hard to explain with traditional gradual changes in fundamentals. We propose a novel dual-vacancy model that rationalizes this recent puzzling behavior, by acknowledging that not all vacancies are made equal—when firms post a vacancy they can fill it with an unemployed worker or they can fill it with an already employed worker—and by assuming that there are two separate search and matching processes, one for unemployed workers and another for the employed workers. By analyzing ...
Working Paper
The Dual Beveridge Curve
This study introduces a dual vacancy model to explain the recent anomalous behavior of the Beveridge curve. The model proposes that job vacancies are partitioned into two categories, one for the unemployed and the other for job-to-job transitions, and that they function in separate markets. We estimate the monthly numbers of both job vacancy types for the U.S. economy and its subsectors starting from 2000 and find a significant surge in poaching vacancies in the mid-2010s. Our analysis indicates that the dual vacancy model provides a better fit to the data than traditional models. These ...