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The Causes of Growth in Prison Admissions and Populations

John F. Pfaff

Fordham University School of Law

January 23, 2012

The explosive growth in the US prison population is well documented, but its causes are poorly understood. In this paper I exploit previously-unused data to define precisely where the growth is occurring. In short, the growth in prison populations has been driven almost entirely by increases in felony filings per arrest. All other possible sites of growth — arrests, admissions per filing, convictions per filings and ad-missions per conviction, and even (perhaps most surprisingly) time served per admission — have barely changed over the past four decades. But the growth in filings tracks that of ad-missions almost perfectly. This paper demonstrates the importance of felony filings and considers some of the possible explanations for their growth.

Number of Pages in PDF File: 46

Keywords: Prisons, Prison Growth, Prosecutors, Prosecutions

JEL Classification: K14, K42

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Date posted: January 24, 2012  

Suggested Citation

Pfaff, John F., The Causes of Growth in Prison Admissions and Populations (January 23, 2012). Available at SSRN: https://ssrn.com/abstract=1990508 or http://dx.doi.org/10.2139/ssrn.1990508

Contact Information

John F. Pfaff (Contact Author)
Fordham University School of Law ( email )
140 West 62nd Street
New York, NY 10023
United States
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