This study finds that children in counties with unified family courts experienced shorter foster care spells and higher rates of reunification with parents or primary caregivers. Shorter foster care spells translated into improved school performance measured by end-of-grade reading and math test scores. Adult drug treatment courts were associated with lower probability of reunification with parents/primary caregivers.

Zoning laws that mix residential units with commercial and public/civic destinations have the potential to increase walkability. This study finds that significant relationships exist between the range and precision with which the zoning ordinances have been written and the mixture of walking destinations that result within the areas.

Decal laws have been implemented internationally to facilitate police enforcement of graduated driver licensing (GDL) restrictions (e.g., passenger limit, nighttime curfew) but have not been evaluated.  New Jersey implemented the first decal law in the United States on May 1, 2010. This study investigates the impact of that decal law on citation rates, crash rates and prevented crashes.