Jorg L. Spenkuch

MEDS Department
Kellogg School of Management
2001 Sheridan Road
Evanston, IL 60208

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NBER Working Papers and Publications

September 2011Racial Disparities in Job Finding and Offered Wages
with Roland G. Fryer, Jr, Devah Pager: w17462
The extent to which discrimination can explain racial wage gaps is one of the most divisive subjects in the social sciences. Using a newly available dataset, this paper develops a simple empirical test which, under plausible conditions, provides a lower bound on the extent of discrimination in the labor market. Taken at face value, our estimates imply that differential treatment accounts for at least one third of the black-white wage gap. We argue that the patterns in our data are consistent with a search-matching model in which employers statistically discriminate on the basis of race when hiring unemployed workers, but learn about their marginal product over time. However, we cannot rule out other forms of discrimination.

Published: Roland G. Fryer , Jr. & Devah Pager & J�rg L. Spenkuch, 2013. "Racial Disparities in Job Finding and Offered Wages," Journal of Law and Economics, University of Chicago Press, vol. 56(3), pages 633 - 689. citation courtesy of

March 2011A Roy Model of Social Interactions
with Steve Cicala, Roland G. Fryer, Jr.: w16880
We develop a Roy model of social interactions in which individuals sort into peer groups based on comparative advantage. Two key results emerge: First, when comparative advantage is the guiding principle of peer group organization, the effect of moving a student into an environment with higher-achieving peers depends on where in the ability distribution she falls and the effective wages that clear the social market. In this sense our model may rationalize the widely varying estimates of peer effects found in the literature without casting group behavior as an externality in agents' objective functions. Second, since a student's comparative advantage is typically unobserved, the theory implies that important determinants of individual choice operate through the error term and may, even unde...
July 2008The Plight of Mixed Race Adolescents
with Roland G. Fryer, Jr, Lisa Kahn, Steven D. Levitt: w14192
Over the past 40 years the fraction of mixed race black-white births has increased nearly nine-fold. There is little empirical evidence on how these children fare relative to their single-race counterparts. This paper describes basic facts about the plight of mixed race individuals during their adolescence and early adulthood. As one might expect, on a host of background and achievement characteristics, mixed race adolescents fall in between whites and blacks. When it comes to engaging in risky/anti-social adolescent behavior, however, mixed race adolescents are stark outliers compared to both blacks and whites. We argue that these behavioral patterns are most consistent with the "marginal man" hypothesis, which we formalize as a two-sector Roy model. Mixed race adolescents -- not having...

Published: Roland G. Fryer Jr. & Lisa Kahn & Steven D. Levitt & Jörg L. Spenkuch, 2012. "The Plight of Mixed-Race Adolescents," The Review of Economics and Statistics, MIT Press, vol. 94(3), pages 621-634, August. citation courtesy of

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