Pawel M. Krolikowski

We present a model in which efficient long-term employment relationships are sustained by wage adjustments prompted by shocks to idiosyncratic productivity and the arrival of outside job offers. In accordance with casual and formal evidence, these wage adjustments occur only sporadically, due to the presence of renegotiation costs. The model is amenable to analytical solution and yields new insights into a number of labor market phenomena, including: (1) key features of the empirical distributions of changes in pay among job stayers; (2) a property of near-“memorylessness” in wage dynamics that implies that initial hiring wages have only limited influence on later wages and allocation decisions; and (3) a crucial role for nonbase pay—specifically, recruitment and retention bonuses—in sustaining efficient employment relationships.

We design and field an innovative survey of unemployment insurance (UI) recipients that yields new insights about wage stickiness on the layoff margin. Most UI recipients express a willingness to accept wage cuts of 5-10 percent to save their jobs, and one-third would accept a 25 percent cut. Yet worker-employer discussions about cuts in pay, benefits, or hours in lieu of layoffs are exceedingly rare. When asked why employers don’t raise the possibility of job-preserving pay cuts, four-in-ten UI recipients don’t know. Sixteen percent say cuts would undermine morale or lead the best workers to quit, and 39 percent don’t think wage cuts would save their jobs. For those who lost union jobs, 45 percent say contractual restrictions prevent wage cuts. Among those on permanent layoff who reject our hypothetical pay cuts, half say they have better outside options, and 38 percent regard the proposed pay cut as insulting. Our results suggest that wage cuts acceptable to both worker and employer could potentially prevent a quarter of the layoffs in our sample. We draw on our findings and other evidence to assess theories of wage stickiness and its role in layoffs.

We collect data from Worker Adjustment and Retraining Notification (WARN) Act notices and establish their usefulness as an indicator of aggregate job loss. The number of workers affected by WARN notices ("WARN layoffs") leads state-level initial unemployment insurance claims, and changes in the unemployment rate and private employment. WARN layoffs move closely with aggregate layoffs from Mass Layoff Statistics and the Job Openings and Labor Turnover Survey, but are timelier and cover a longer sample. In a vector autoregression, changes in WARN layoffs lead unemployment rate changes and job separations. Finally, they improve pseudo real-time forecasts of the unemployment rate.

We collect rich establishment-level data about advance layoff notices filed under the Worker Adjustment and Retraining Notification (WARN) Act since January 1990. We present in-sample evidence that the number of workers affected by WARN notices leads state-level initial unemployment insurance claims, changes in the unemployment rate, and changes in private employment. The effects are strongest at the one and two-month horizons. After aggregating state-level information to a national-level “WARN factor” using a dynamic factor model, we find that the factor substantially improves out-of-sample forecasts of changes of manufacturing employment in real time.

We examine persistence in employment-to-population ratios in excess of that implied by persistence in aggregate labor market conditions, among less-educated individuals using state-level data for the United States. Dynamic panel regressions and local projections indicate a moderate degree of excess persistence, which dissipates within three years. We find no significant asymmetry between the excess persistence of high vs. low employment rates. The cumulative effect of excess persistence in the business cycle surrounding the 2001 recession was mildly positive, while the effect in the cycle surrounding the 2008-09 recession was decidedly negative. Simulations suggest that the lasting employment benefits of temporarily running a “high-pressure” economy are small.

We add goods-market frictions to a general equilibrium dynamic model with heterogeneous exporting producers and identical importing retailers. Our tractable framework leads to endogenously unmatched producers, which attenuate welfare responses to foreign shocks but increase the trade elasticity relative to a model without search costs. Search frictions are quantitatively important in our calibration, attenuating welfare responses to tariffs by 40 percent and increasing the trade elasticity by 50 percent. Eliminating search costs raises welfare by 1 percent and increasing them by only a few dollars has the same effects on welfare and trade flows as a 10 percent tariff.

This paper disciplines a model with search over match quality using microeconomic evidence on worker mobility patterns and wage dynamics. In addition to capturing these individual data, the model provides an explanation for aggregate labor market patterns. Poor match quality among first jobs implies large fluctuations in unemployment due to a responsive job destruction margin. Endogenous job destruction generates a burst of layoffs at the onset of a recession and, together with on-the-job search, generates a negative comovement between unemployment and vacancies. A significant job ladder, consistent with the empirical wage dispersion, provides ample scope for the propagation of vacancies and unemployment.

We add goods-market frictions to a general equilibrium dynamic model with heterogeneous exporting producers and identical importing retailers. Our tractable framework leads to endogenously unmatched producers, which attenuate welfare responses to foreign shocks but increase the trade elasticity relative to a model without search costs. Search frictions are quantitatively important in our calibration, attenuating welfare responses to tariffs by 40 percent and increasing the trade elasticity by 50 percent. Eliminating search costs raises welfare by 1 percent and increasing them by only a few dollars has the same effects on welfare and trade flows as a 10 percent tariff.

We examine hysteresis in employment-to-population ratios among less-educated men using state-level data. Results from dynamic panel regressions indicate a moderate degree of hysteresis: The effects of past employment rates on subsequent employment rates can be substantial but essentially dissipate within three years. This finding is robust to a number of variations. We find no substantial asymmetry in the persistence of high vs. low employment rates. The cumulative effect of hysteresis in the business cycle surrounding the 2001 recession was mildly positive, while the effect in the cycle surrounding the 2008–09 recession was, through 2016, decidedly negative. Additional simulations suggest that the employment benefits of temporarily running a “high-pressure” economy are small.

Young adults, ages 25 to 35, who live in the same neighborhoods as their parents experience stronger earnings recoveries after a job displacement than those who live farther away. This result is driven by smaller on-impact wage reductions and sharper recoveries in both hours and wages. We show that geographic mobility, different job search durations, housing transfers, and ex-ante differences between individuals are unlikely explanations. Our findings are consistent with a framework in which some individuals living near their parents face a better wage-offer distribution, though we find no direct evidence of parental network effects.

The vast majority of studies on the earnings of displaced workers use a control group of never-displaced workers to examine the effects of initial displacements. This approach attributes earnings declines due to all future job instability to the initial displacement event, overstating the losses relative to the average treatment effect. This paper's approach isolates the impact of an average displacement without conditioning on future displacement status in the control group. In comparisons of the standard and alternative approaches using PSID data, the estimated long-run earnings losses fall dramatically from 25 percent to as low as 5 percent.

We present a tractable framework that embeds goods-market frictions in a general equilibrium dynamic model with heterogeneous exporters and identical importers. We show that search frictions lead to an endogenous fraction of unmatched exporters, alter the gains from trade, endogenize entry costs, and imply that the competitive equilibrium does not generally result in the socially optimal number of searching firms. Finally, ignoring search frictions results in biased estimates of the effect of tariffs on trade flows.

The vast majority of studies on the earnings of displaced workers use a control group of continuously employed workers to examine the effects of initial displacements. This approach implies long-lived earnings reductions following displacement even if these effects are not persistent, overstating the losses relative to the true average treatment effect. This paper's approach isolates the impact of an average displacement without imposing continuous employment on the control group. In a comparison of the standard and alternative approaches using PSID data, the estimated long-run earnings losses fall dramatically from 25 percent to 5 percent. Model simulations reinforce these empirical findings.

Workers who suffer job displacement experience surprisingly large and persistent earnings losses. This paper proposes an explanation for this robust empirical puzzle in a model of search over match-quality with a significant job ladder. In addition to capturing the depth and persistence of displaced-worker-earnings losses, the model is able to match a) separation rates by tenure; b) the empirical decomposition of earnings losses into reduced wages and employment; c) observed wage dispersion; d) the pattern of employer-to-employer transitions after layoff, and e) the degree of serial correlation in separations.

We conjecture that further large increases in labor supply are unlikely based on analyses of the disabled labor force and the foreign-born labor force.

Workers displaced during the pandemic recession experienced better subsequent earnings and employment outcomes than workers displaced during previous recessions. A sharp recovery in aggregate labor market conditions after the pandemic recession accounts for these better outcomes. The industry and occupation composition of displaced workers, the prevalence of worker recalls, and the uptake of unemployment insurance benefits are unlikely explanations.

Vehicle production has fallen since the beginning of the pandemic recession. We investigate reasons for this decline. Manufacturers in this industry cite insufficient materials, including a lack of semiconductors, as increasingly responsible. Demand seems to be less of an issue. In fact, demand has been strong, and together with accelerating prices and sharply declining inventories, it suggests an insufficient supply of new cars. Our best guess is that the materials shortages and their effects on new car prices will subside within the next six to nine months.

We discuss the costs and benefits of short-time compensation (STC), an unemployment insurance program that allows workers with temporarily reduced hours to receive some unemployment insurance benefits. We describe the provisions for STC in the Middle Class Tax Relief and Job Creation Act of 2012 and the 2020 Coronavirus Aid, Relief, and Economic Security (CARES) Act and report the utilization of STC before and after these acts. The number of states with STC programs has remained unchanged at 27 since the beginning of the pandemic, but STC utilization has recently risen to unprecedented levels, driven largely by increases in Michigan and Washington. However, these increases are small relative to increases in Germany’s popular Kurzarbeit program, suggesting that the United States’ STC program may still have scope for expansion.

We use WARN data to assess layoffs in four Midwestern states during the current pandemic-induced recession—Kentucky, Ohio, Pennsylvania, and West Virginia. The data come from the advance layoff notices filed under the Worker Adjustment and Retraining Notification (WARN) Act. We find that the number of workers affected by layoff announcements rose sharply in the second half of March and April, and unexpected changes in economic conditions meant that workers received little advance notice before layoff. Layoff announcements have affected workers across these four states, and workers in mining and leisure and hospitality have been affected the most. Most recently, the number of workers affected by WARN notices has almost returned to prerecession levels.

We use advance layoff notices filed under the Worker Adjustment and Retraining Notification (WARN) Act as an indicator of current and imminent labor market conditions. We have constructed a database of establishment-level notices starting in 1990 by scraping state government websites, contacting state officials, and retrieving historical data. We find evidence that these notices, aggregated to the national level, lead other prominent labor market indicators, such as initial unemployment insurance claims, the change in the unemployment rate, and changes in private employment. The lead relationship seems strongest at one month with economically meaningful magnitudes. Most recently, WARN data suggest a slight increase in labor market slack.

We have previously shown that young adults who live near their parents experience faster earnings recoveries after a job loss than young adults who live farther from their parents. In this analysis, we present evidence that demonstrates the relationship is causal; that is, there is something about living close to one’s parents that enables one to find another job that pays as well as the one lost. We also explore what type of parental help might be driving the relationship and find that it is possibly the provision of childcare and access to job networks, but likely not help with housing expenses.

The effect of job displacement on future earnings losses has often been calculated by comparing the earnings of individuals who suffer a displacement at some point in their career with the earnings of those who never lose a job. I show this approach leads to an overstatement of the earnings losses following displacement and discuss an alternative that can ascertain the true effects of displacement in some instances.

We find post-job-loss earnings recovery is faster for young adults who live near their parents than for young adults who live farther away. This positive effect diminishes gradually as the distance to one’s parents increases. Most of the effect is driven by higher wages after job displacement, not by differences in the number of hours worked. The effect is not present for older workers, who may be caring for elderly parents.

With economic conditions changing so rapidly during the COVID-19 pandemic, the standard layoff indicators that policymakers and analysts use are falling short. Worker Adjustment and Retraining Notification (WARN) Act data—a more timely indicator—reveal four findings about job loss during this pandemic.