Do Judges Vary in Their Treatment of Race?
University of Pennsylvania Law School
University of Chicago - Booth School of Business; National Bureau of Economic Research (NBER); Centre for Economic Policy Research (CEPR)
Harvard University - Department of Economics; National Bureau of Economic Research (NBER)
May 28, 2013
Journal of Legal Studies, Vol. 41, No. 2 (June 2012), pp. 347-383
U of Penn, Inst for Law & Econ Research Paper No. 11-07
Are minorities treated differently by the legal system? Systematic racial differences in case characteristics, many unobservable, make this a difficult question to answer directly. In this paper, we estimate whether judges differ from each other in how they sentence minorities, avoiding potential bias from unobservable case characteristics by exploiting the random assignment of cases to judges. We measure the between-judge variation in the difference in incarceration rates and sentence lengths between African-American and White defendants. We perform a Monte Carlo simulation in order to explicitly construct the appropriate counterfactual, where race does not influence judicial sentencing. In our data set, which includes felony cases from Cook County, Illinois, we find statistically significant between-judge variation in incarceration rates, although not in sentence lengths.
Number of Pages in PDF File: 39
Keywords: Criminal law, racial discrimination, race and justice, punishment, sentencing, bias, incarceration rate, sentence length, Monte Carlo simulation, empirical research, forecasting and simulation, accounting for disparities in judicial behavior, law and economics of crime
JEL Classification: C79, J29, J71, K14
Date posted: April 2, 2011 ; Last revised: September 28, 2013
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