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This paper investigates the impact of instructional days on student performance. Because school year length is endogenously determined, I estimate the causal impact of school year length through two quasi-experiments that exploit diierent sources of variation in instructional days. The rst identiies school year length's eeect through weather-related(More)
This paper focuses on the eeect of police enforcement on roadway safety. Because of simultaneity, estimating the causal eect of police on crime is often diicult. We overcome this obstacle by focusing on a mass layoo of the Oregon State Police in February of 2003, stemming from Measure 28. Due solely to budget cuts, 35 percent of the roadway troopers were(More)
This paper reports on research conducted in public health settings with young people who have serious mental health issues. An easy to use feedback system for clinicians providing psychotherapy was assessed against treatment as usual. Data were collected on four widely used outcome measures. There has been little previous research in this area. We found(More)
Intra-month cycles in household consumption and expenditure are considered hallmarks of dynamically inconsistent behavior. I find that Electronic Benefit Transfer reduced the severity of the these cycles for SNAP (food stamp) households with children and dual-parent households. The evidence suggests an explanation based on collective dynamic inconsistency –(More)
Any opinions expressed here are those of the author(s) and not those of IZA. Research published in this series may include views on policy, but the institute itself takes no institutional policy positions. The Institute for the Study of Labor (IZA) in Bonn is a local and virtual international research center and a place of communication between science,(More)
Traditional economic models of criminal behavior have straightforward predictions: raising the expected cost of crime via apprehension probabilities or punishments decreases crime. I test the e¤ect of harsher punishments on deterring driving under the in ‡uence (DUI). In this setting, punishments are determined by strict rules on Blood Alcohol Content (BAC)(More)
The large excess fraction of diicult-to-diagnose injuries on Monday was originally thought to reect employees' use of workers' compensation to cover weekend injuries. However, there has been mixed evidence found supporting this notion. This paper takes advantage of substantial reforms in California which both made ling false claims more dicult and less(More)
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