Under the Cover of Darkness: How Ambient Light Influences Criminal Activity

Jennifer Doleac and Nicholas Sanders

The Review of Economics and Statistics, 2015, vol. 97, issue 5, 1093-1103

Abstract: We exploit daylight saving time (DST) as an exogenous shock to daylight, using both the discontinuous nature of the policy and the 2007 extension of DST, to consider the impact of light on criminal activity. Regression discontinuity estimates show a 7% decrease in robberies following the shift to DST. As expected, effects are largest during the hours directly affected by the shift in daylight. We discuss our findings within the context of criminal decision making and labor supply, and estimate that the 2007 DST extension resulted in $59 million in annual social cost savings from avoided robberies.

Keywords: daylight sving time; criminal activity; social cost (search for similar items in EconPapers)
JEL-codes: J22 K42 (search for similar items in EconPapers)
Date: 2015
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Citations: View citations in EconPapers (60)

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