Search Results
Working Paper
Dynamics of labor demand : evidence from plant-level observations and aggregate implications
This paper studies the dynamics of labor demand at the micro and aggregate level. The correlation of hours and employment growth is negative at the plant level and positive in aggregate time series. Further, hours and employment growth are about equally volatile at the plant level while hours growth is much less volatile than employment growth in the aggregate data. Given these differences, we specify and estimate the parameters of a plant-level dynamic optimization problem using simulated method of moments to match plant-level observations. Our findings indicate that non-convex adjustment ...
Working Paper
Changing Business Dynamism and Productivity : Shocks vs. Responsiveness
The pace of job reallocation has declined in all U.S. sectors since 2000. In standard models, aggregate job reallocation depends on (a) the dispersion of idiosyncratic productivity shocks faced by businesses and (b) the marginal responsiveness of businesses to those shocks. Using several novel empirical facts from business microdata, we infer that the pervasive post-2000 decline in reallocation reflects weaker responsiveness in a manner consistent with rising adjustment frictions and not lower dispersion of shocks. The within-industry dispersion of TFP and output per worker has risen, while ...
Working Paper
Job-to-job flows and the consequences of job separations
This paper extends the literature on the earnings losses of displaced workers to provide a more comprehensive picture of the earnings and employment outcomes for workers who separate. First, we compare workers who separate from distressed employers (presumably displaced workers) and those who separate from stable or growing employers. Second, we distinguish between workers who do and do not experience a spell of joblessness. Third, we examine the full distribution of earnings outcomes from separations - not the impact on only the average worker. We find that earnings outcomes depend much less ...
Conference Paper
Business volatility, job destruction and unemployment
Unemployment inflows fell from 4 percent of employment per month in the early 1980s to 2 percent or less by the mid 1990s and thereafter. U.S. data also show a secular decline in firm-level employment volatility and the job destruction rate. We interpret this decline as a decrease in the intensity of idiosyncratic labor demand shocks, a key parameter in search and matching models of frictional unemployment. According to these models, a lower intensity of idiosyncratic demand shocks produces less job destruction, fewer workers flowing through the unemployment pool and less frictional ...
Discussion Paper
Business entry and exit in the COVID-19 pandemic: A preliminary look at official data
The economic effects of the COVID-19 pandemic brought new focus to questions about business entry and survival. The spring of 2020 was characterized by widespread fear of surging business exit (death).
Working Paper
Hours and employment implications of search frictions: matching aggregate and establishment-level observations
This paper studies worker and job flows at the establishment and aggregate levels. The paper is built around a set of facts concerning the variability of unemployment and vacancies in the aggregate, the distribution of net employment growth and the comovement of hours and employment growth at the establishment level. A search model with frictions in hiring and firing is used as a framework to understand these observations. Notable features of this search model include non-convex costs of posting vacancies, establishment level profitability shocks and a contracting framework that determines ...
Journal Article
Firms' wage adjustments: a break from the past - commentary