Knowledge that Transforms

This research examines the determinants of the match between high school seniors and postsecondary institutions in the United States. I model college application decisions as a nonsequential search problem and specify a unified structural model of college application, admission, and matriculation decisions that are all functions of unobservable individual heterogeneity. The results indicate that black and Hispanic representation at all 4‐year colleges is predicted to decline modestly—by 2%—if race‐neutral college admissions policies are mandated nationwide. However, race‐neutral admissions are predicted to decrease minority representation at the most selective 4‐year institutions by 10%.

In the context of certain models, it is possible to infer the elasticity of labor supply to the firm from the elasticity of the quit rate with respect to the wage. We use this strategy to estimate the elasticity of labor supply for men and women workers at a chain of grocery stores, identifying separation elasticities from differences in wages and separation rates across different job titles within the firm. We estimate that women have lower elasticities, so a Robinson‐style monopsony model can explain reasonably well the lower relative pay of women in the retail grocery industry.

Monopsonistic wage‐setting power requires that the supply of labor directed toward individual establishments is upward sloping. This study utilizes institutional features to identify the supply curve. The elasticity of labor supply is estimated using data for the Norwegian teacher labor market in a period where the only variation in the wage level was determined centrally and with information on whether there is excess demand or not at the school level. In fixed‐effects models, the supply elasticity faced by individual schools is estimated to about 1.4 and is in the range 1.0–1.9 in different model specification.

This article studies the effect of recruitment restrictions on mobility and wages in the postbellum U.S. South. I estimate the effects of criminal fines charged for “enticement” (recruiting workers already under contract) on sharecropper mobility, tenancy choice, and agricultural wages. I find that a $13 (10%) increase in the enticement fine lowered the probability of a move by black sharecroppers by 12%, daily wages by 1 cent (.1%), and the returns to experience for blacks by 0.6% per year. These results are consistent with an on‐the‐job search model, where the enticement fine raises the cost of recruiting an employed worker.

The Great Depression offers a unique laboratory to investigate the causal impact of migration on local labor markets. We use variation in the generosity of New Deal programs and extreme weather events to instrument for migrant flows to and from U.S. cities. In-migration had little effect on the hourly earnings of existing residents. Instead, in-migration prompted some residents to move away and others to lose weeks of work or access to relief jobs. For every 10 arrivals, we estimate that 1.9 residents moved out, 2.1 were prevented from finding a relief job, and 1.9 shifted from full-time to part-time work.

This article investigates women’s and men’s labor supply to the firm within a semistructural approach based on a dynamic model of new monopsony. Using methods of survival analysis and a large linked employer‐employee data set for Germany, we find that labor supply elasticities are small (1.9–3.7) and that women’s labor supply to the firm is less elastic than men’s (which is the reverse of gender differences in labor supply usually found at the level of the market). Our results imply that at least one‐third of the gender pay gap might be wage discrimination by profit‐maximizing monopsonistic employers.

Three states recently introduced universal prekindergarten programs offering free preschool to all age‐eligible children; policy makers in many other states are promoting similar programs. Using restricted‐access data from the Census, together with birthday‐based eligibility cutoffs, I employ a regression discontinuity framework to estimate the effects of universal pre‐K availability on overall preschool enrollment and maternal labor supply. Universal pre‐K availability increases statewide preschool enrollment by about 14% but has little effect on the labor supply of most women.

Recent theoretical and empirical advances have renewed interest in monopsonistic models of the labor market. However, there is little direct empirical support for these models. We use an exogenous change in wages at Department of Veterans Affairs (VA) hospitals as a natural experiment to investigate the extent of monopsony in the nurse labor market. We estimate that labor supply to individual hospitals is quite inelastic, with short‐run elasticity around 0.1. We also find that non‐VA hospitals responded to the VA wage change by changing their own wages.

Disentangling peer effects from other confounding effects is difficult,and separately identifying endogenous and contextual effects is impossible for the linear-in-means model. This study confronts these problems by using spatial autoregressive models with group fixed effects. The nonlinearity introduced by the variations in the peer measurements provides information to identify both endogenous and contextual effects,thus resolving the "reflection problem." The group fixed effects term captures the confounding effects of the common variables.Applying the model to data sets from the National Longitudinal Studyof Adolescent Health, I find strong evidence for both endogenous and contextual effects in student academic achievement. (c) 2010 by The University of Chicago. Allrights reserved.