“…A large corpus of studies using prisoner data from California (Caudill et al, 2014), Kentucky, Ohio (Cao et al, 1997), Tennessee (Lahm, 2008), Oregon (Cihan et al, 2017), Texas (DeLisi et al, 2011), the federal Bureau of Prisons (Dhami et al, 2007; Walters & Crawford, 2013), and regional and national-level U.S. data (Celinska & Sung, 2014; Diamond et al, 2012; Jiang & Fisher-Giorlando, 2002; Poole & Regoli, 1983; Worrall & Morris, 2012) provide empirical support for the importation model. The viability of the importation model is not limited to an American context as empirical support also exists using data from Canada (Ruddell & Gottschall, 2011), Germany (Klatt et al, 2016), and Romania (Dâmboeanu & Nieuwbeerta, 2016).…”