Abstract
Can sanctions deter juvenile crime? Research indicates that they may not, as offending barely decreases when individuals cross the age of criminal majority and begin to face harsher sanctions. Several models of criminal behavior predict, however, that these small reactions close to the threshold may mask larger behavioral responses among individuals below the age threshold. Policy variation between 2007–2015 in the United States is used to show evidence consistent with these predictions—juvenile crime increases when the age of majority is increased. This increase is driven by younger age groups and is considerably larger than discontinuity estimates at the threshold. (JEL D91, J13, K42)