RT Article T1 Estimating the deterrent effect of incarceration using sentencing enhancements JF American economic journal. Applied economics VO 4 IS 4 SP 32 OP 56 A1 Abrams, David S. LA English YR 2012 UL https://krimdok.uni-tuebingen.de/Record/1912540444 DO 10.1257/app.4.4.32