Over the last two decades juvenile violent crime has grown almost twice as
quickly as that of adults. This paper finds that changes in relative punish
ments can account for 60 percent of that differential. Juvenile offenders a
re at least as responsive to criminal sanctions as adults. Sharp drops in c
rime at the age of majority suggest that deterrence (and not merely incapac
itation) plays an important role. There does not, however, appear to be a s
trong relationship between the punitiveness of the juvenile justice system
that a cohort faces and the extent of criminal involvement for that cohort
later in life.