This paper develops a dynamic model of mismatch. Workers and jobs are randomly assigned to labor markets. Each labor market clears at each instant but some labor markets have more workers than jobs, hence unemployment, and some have more jobs than workers, hence vacancies. As workers and jobs...

Tracking individual workers across jobs after Brazil's trade liberalization in the 1990s shows that tariff cuts trigger worker displacements, but neither exporters nor comparative-advantage sectors absorb trade-displaced labor. On the contrary, exporters separate from significantly more and hire...

The effects of exchange rate fluctuations across the population is an important issue for increasingly globalized economies. Previous studies using industry aggregate data have found differences across industries in the labor market implications of exchange rates, reporting that industry wages...

This paper examines the effect of technological change and other factors on the relative demand for workers with different education levels and on the recent growth of U.S. educational wage differentials. A simple supply-demand framework is used to interpret changes in the relative quantities,...

Standard models suggest that adverse labor demand shocks will lead to bigger employment losses if institutional factors like minimum wages and trade unions prevent downward wage adjustments. Some economists have argued that this insight explains the contrast between the United States, where real...

The theory of the dynamics of labor demand is based either on the costs of adjusting the level of employment or on the costs of hiring or firing (of gross changes in employment). We write down a generalized cost of adjustment function that includes both types of cost and allows for asymmetries...

This study examines the nature of the costs that firms face in adjusting labor demand in response to shocks induced by changes in output demand and prices. Empirical work on monthly plant-level time-series data shows that adjustment proceeds in jumps. Employment is unchanged in response to small...

How important is the exercise of classical monopsony power against labor for the level of wages and labor's share? We examine this in the context of China and India - two large, rapidly-growing developing economies. Using theory, we develop a novel screen to quantify how wages are affected by...

Machine learning (ML) is mostly a predictive enterprise, while the questions of interest to labor economists are mostly causal. In pursuit of causal effects, however, ML may be useful for automated selection of ordinary least squares (OLS) control variables. We illustrate the utility of ML for...

We analyze the effect of local-level labor market concentration on wages. Using Census data over the period 1977-2009, we find that: (1) local-level employer concentration exhibits substantial cross-sectional and time-series variation and increases over time; (2) consistent with labor market...