Racial Disparity in the Criminal Justice Process: Prosecutors, Judges, and the Effects of United States v. Booker

Current empirical estimates of racial and other unwarranted disparities in sentencing suffer from two pervasive flaws. The first is a focus on the sentencing stage in isolation. Studies control for the “presumptive sentence” or closely related measures that are themselves the product of discretionary charging, plea-­‐bargaining, and fact-­‐finding processes. Any disparities in these earlier processes are built into the control variable, which leads to misleading sentencing-­‐disparity estimates. The second problem is specific to studies of sentencing reforms: they use loose methods of causal inference that do not disentangle the effects of reform from surrounding events and trends. This Article explains these problems and presents an analysis that corrects them and reaches very different results from the existing literature. We address the first problem by using a dataset that traces cases from arrest to sentencing and by examining disparities across all post-­‐arrest stages. We find that most of the otherwise-­‐ unexplained racial disparities in sentencing can be explained by prosecutors’ choices to bring mandatory minimum charges. We address the problem of disentangling trends using a rigorous method called regression discontinuity design. We apply it to assess the effects of the loosening of the U.S. Sentencing Guidelines in United States v. Booker. Contrary to prominent recent studies, we find that Booker did not increase disparity, and may have reduced it

Mandatory Sentencing and Racial Disparity, Assessing the Role of Prosecutors and the Effects of Booker

This Article presents new empirical evidence concerning the effects of United States v. Booker, which loosened the formerly mandatory U.S. Sentencing Guidelines, on racial disparities in federal criminal cases. Two serious limitations pervade existing empirical literature on sentencing disparities. First, studies focus on sentencing in isolation, controlling for the “presumptive sentence” or similar measures that themselves result from discretionary charging, plea-bargaining, and fact-finding processes. Any disparities in these earlier processes are excluded from the resulting sentence-disparity estimates. Our research has shown that this exclusion matters: pre-sentencing decision-making can have substantial sentence-disparity consequences. Second, existing studies have used loose causal inference methods that fail to disentangle the effects of sentencing-law changes, such as Booker, from surrounding events and trends. In contrast, we use a dataset that traces cases from arrest to sentencing, allowing us to assess Booker’s effects on disparities in charging, plea-bargaining, and fact-finding, as well as sentencing. We disentangle background trends by using a rigorous regression discontinuity-style design. Contrary to other studies (and in particular, the dramatic recent claims of the U.S. Sentencing Commission), we find no evidence that racial disparity has increased since Booker, much less because of Booker. Unexplained racial disparity remains persistent, but does not appear to have increased following the expansion of judicial discretion

Physicians Treating Physicians: Information and Incentives in Childbirth

This paper provides new evidence on the interaction between patient information and physician financial incentives. Using rich microdata on childbirth, we compare the treatment of physicians when they are patients with that of comparable nonphysicians. We also exploit the presence of HMO-owned hospitals to determine how the treatment gap varies with providers' financial incentives. Consistent with induced demand, physicians are approximately 10 percent less likely to receive a C-section, with only a quarter of this effect attributable to differential sorting. While financial incentives affect the treatment of nonphysicians, physician-patients are largely unaffected. Physicians also have better health outcomes. (JEL D83, I11, J16, J44

On Estimating Disparity and Inferring Causation: Sur-Reply to the U.S. Sentencing Commission Staff

In this Essay, Professors Starr and Rehavi respond to the U.S. Sentencing Commission’s empirical staff’s criticisms of their recent article, which found, contrary to the Commission’s prior work, no evidence that racial disparity in sentences increased in response to United States v. Booker. As Starr and Rehavi suggest, their differences with the Commission perhaps relate to differing objectives. The Commission staff’s reply expresses a lack of interest in identifying Booker’s causal effects; in contrast, that is Starr and Rehavi’s central objective. In addition, Starr and Rehavi’s approach also accounts for disparities arising throughout the post-arrest justice process, extending beyond the Commission’s narrower focus on disparities in adherence to the Sentencing Guidelines. Beyond these core disagreements, Starr and Rehavi point to several ways in which the reply’s other criticisms inaccurately describe their claims, their methods, and the scope of their study’s sample

Racial Disparity in Federal Criminal Sentences

Using rich data linking federal cases from arrest through to sentencing, we find that initial case and defendant characteristics, including arrest offense and criminal history, can explain most of the large raw racial disparity in federal sentences, but significant gaps remain. Across the distribution, blacks receive sentences that are almost 10 percent longer than those of comparable whites arrested for the same crimes. Most of this disparity can be explained by prosecutors’ initial charging decisions, particularly the filing of charges carrying mandatory minimum sentences. Ceteris paribus, the odds of black arrestees facing such a charge are 1.75 times higher than those of white arrestee

Racial Disparity in Federal Criminal Sentences

Using rich data linking federal cases from arrest through to sentencing, we find that initial case and defendant characteristics, including arrest offense and criminal history, can explain most of the large raw racial disparity in federal sentences, but significant gaps remain. Across the distribution, blacks receive sentences that are almost 10 percent longer than those of comparable whites arrested for the same crimes. Most of this disparity can be explained by prosecutors’ initial charging decisions, particularly the filing of charges carrying mandatory minimum sentences. Ceteris paribus, the odds of black arrestees facing such a charge are 1.75 times higher than those of white arrestee