This report, published by the Office of Juvenile Justice & Delinquency Prevention, looks at transfers of juveniles to the adult system and its effects on deterring crime. Some of the report's findings are that laws that make it easier to transfer youth to the adult system have little to no deterrent effect on juvenile crime, and that youth transferred to the adult system are more likely to re-offend than youth who committed similar crimes but remained in the juvenile system.
[1]
[1]: http://ctjja.org/media/resources/resource_309.pdf