“…The third reason is that Medicaid increases access to treatment for those suffering from behavioral disorders or drug addiction. A large body of research has shown that substance abuse treatment is effective at reducing crime and recidivism (e.g., Bondurant et al, 2018;Campbell et al, 2007;Deck et al, 2009;Lurigio, 2000;Marsch, 1998;Mitchell et al, 2007;Prendergast et al, 2002), and although the literature on the effect of mental health treatment is less conclusive, it is suggestive of a small or moderate crime reduction (e.g., Cuellar et al, 2004;Evans Cuellar et al, 2006;Frank and McGuire, 2011;Constantine et al, 2012;Martin et al, 2012;Morrissey et al, 2007;Morrissey et al, 2016;Van Dorn et al, 2013). If Medicaid helps newly eligible individuals obtain treatment for mental health issues they would otherwise ignore (or treat less effectively), it could potentially induce a reduction in overall crime rates.…”