No consensus has emerged about how, or even if, incarceration affects the behavior of convicted offenders. One unexplored mechanism involves the possibility that the disutility of punishment is affected by both the actual punishment an offender receives and the sentence that he thinks could have...

Sentence enhancements may reduce crime both by deterring potential criminals and by incapacitating previous offenders, removing these possible recidivists from society for longer periods. I estimate the incapacitative effect of longer sentences by exploiting a 2001 change in Maryland's...