Journal
ANNUAL REVIEW OF CRIMINOLOGY
Volume 5, Issue -, Pages 133-152Publisher
ANNUAL REVIEWS
DOI: 10.1146/annurev-criminol-030920-112506
Keywords
incarceration; recidivism; offending; imprisonment effects
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This review examines the impact of incarceration on the probability of reoffending and analyzes how it is influenced by different factors. The majority of studies suggest that postconviction imprisonment has little impact on the likelihood of recidivism, while a smaller number of studies find significant effects, both positive and negative. Pretrial detention, on the other hand, is consistently found to have a deleterious effect on postrelease reoffending. Further research is needed to better understand the heterogeneous effects of incarceration and the mechanisms through which they are generated.
The US prison population stands at 1.43 million persons, with an additional 740,000 persons in local jails. Nearly all will eventually return to society. This review examines the available evidence on how the experience of incarceration is likely to impact the probability that formerly incarcerated individuals will reoffend. Our focus is on two types of studies, those based on the random assignments of cases to judges, called judge instrumental-variable studies, and those based on discontinuities in sentence severity in sentencing grids, called regression discontinuity studies. Both types of studies are designed to account for selection bias in nonexperimental estimates of the impact of incarceration on reoffending. Most such studies find that the experience of postconviction imprisonment has little impact on the probability of recidivism. A smaller number of studies do, however, find significant effects, both positive and negative. The negative, recidivism-reducing effects are mostly in settings in which rehabilitative programming is emphasized and the positive, criminogenic effects are found in settings in which such programming is not emphasized. The findings of studies of pretrial incarceration are more consistent-most find a deleterious effect on postrelease reoffending. We also conclude that additional work is needed to better understand the heterogeneous effects of incarceration as well as themechanisms through which incarceration effects, when observed, are generated. For policy, our conclusion of the generally deleterious effect of pretrial detention adds to a larger body of evidence pointing to the social value of limiting its use.
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