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Philip J. Cook
Duke University
EconomicsOccupational safety and healthInjury preventionSuicide preventionMedicine
247Publications
47H-index
9,292Citations
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Publications 231
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#1Emma Zang (Yale University)H-Index: 2
#2Poh Lin Tan (NUS: National University of Singapore)
Last. Philip J. Cook (Duke University)H-Index: 47
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This paper examines causal sibling spillover effects among socially advantaged (e.g. white, two-parent, or non-poor school district) and disadvantaged families (e.g. black, single-mother, or poor school district) in elementary and middle school. Exploiting discontinuities in school starting age created by North Carolina school entry laws, we adopt a quasi-experimental approach and compare test scores of public school students whose older siblings were born shortly before and after the school ent...
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#1Philip J. Cook (Duke University)H-Index: 47
Last. Songman KangH-Index: 6
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Abstract Most states have moved their public-school-entry cut date forward in recent years. In North Carolina the latest date by which a matriculant must turn 5 was recently changed from October 16th to August 31st. Those born in between the old and new cut dates (the “swing group”), formerly among the youngest entrants, became the oldest. Utilizing a comprehensive statewide administrative data set, we demonstrate that for the swing group the black-white standardized test-score gaps (3rd and 4th...
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#1Philip J. Cook (Duke University)H-Index: 47
#2Anthony A. Braga (NU: Northeastern University)H-Index: 40
Last. Lisa Barao (NU: Northeastern University)H-Index: 2
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6 CitationsSource
#1David Weisburd (GMU: George Mason University)H-Index: 54
#2Malay Majmundar (National Academies)H-Index: 1
Last. Tom R. Tyler + etal (Yale University)H-Index: 90
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This paper provides a summary of our report for the National Academy of Sciences, Engineering, and Medicine on proactive policing. We find that there is sufficient scientific evidence to support the adoption of many proactive policing practices if the primary goal is to reduce crime, though the evidence base generally does not provide long-term or jurisdictional estimates. In turn, we conclude that crime prevention outcomes can often be obtained without producing negative community reactions. Ho...
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#1Philip J. Cook (Duke University)H-Index: 47
#2Harold A. Pollack (U of C: University of Chicago)H-Index: 31
Last. Kailey White (U of C: University of Chicago)
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Guns that are used in crime and recovered by the police typically have changed hands often since first retail sale and are quite old. While there is an extensive literature on “time to crime” for guns, defined as the elapsed time from first retail sale to known use in a crime, there is little information available on the duration of the “last link”—the elapsed time from the transaction that actually provided the offender with the gun in question. In this article, we use data from the new Chicago...
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#1Philip J. Cook (Duke University)H-Index: 47
#2Jens Ludwig (U of C: University of Chicago)H-Index: 45
We respond to the new article by Hayo, Neumeier, and Westphal (HNW), which is a critique of our 2006 article. The principal contribution of that article was to use a greatly improved proxy for gun prevalence to estimate the effect of gun prevalence on homicide rates. While the best available, our proxy, the ratio of firearms suicides to total suicides in a jurisdiction (FSS), is subject to measurement error which limits its use to larger jurisdictions that have enough suicides to stabilize the r...
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#1Philip J. CookH-Index: 47
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