“…2 Studies using actual police, arrest, or punishment measures include Blumestein, et al, 1978, Cameron, 1988, Ehrlich, 1973,1981, Grogger, 1991, Levitt, 1997, 1998a, 1998b, Myers, 1983, Tauchen, Witte, and Griesinger, 1994, Trumbull, 1989, Waldfogel, 1993, and Witte, 1980. 3 Criminologists studying the link between perceptions and crime have reported that individuals engaged in crime tend to lower their perceived probability of arrest, referring to these e ects as`experiential e ects ' Minor and Harry, 1982, Paternoster, et al, 1983, Piliavin, et al, 1986, Saltzman, et al, 1982. The main emphasis of these studies has been to point out the aws inherent in using cross-sectional data on perceptions and criminal behavior to estimate deterrence e ects, since the reported behavior is typically prior to the perceptions measure.…”