“…A large literature in psychology and economics points to both intentions and incentives as important determinants of sanctions' effects (Andreoni et al, 2003;Bewley, 1999;Camerer, 2003;Dickinson, 2001;Falk et al, 1999;Fehr and Falk, 2002;Fehr and Gächter, 2000a;Fehr and List, 2004;Fehr and Rockenbach, 2003;Schmidt, 2007 Gneezy andRustichini, 2000a,b;Ostrom et al, 1992;Sefton et al, 2002;Yamagishi, 1986Yamagishi, , 1988. In general, intentions involve personalized rules by humans while incentives involve impersonal rules by law.…”