“…Aggregate studies used such unit of analysis as neighborhood (Browning, Feinberg, & Dietz, 2004;Martin, 2002;Putnam, 2001;Sampson, Raudenbush, & Earls, 1997), county (Beyerlein & Hipp, 2005;Lee & Bartkowski, 2004a, 2004bLee & Ousey, 2005), region (Gatti, Tremblay, & Larocque, 2003;Messner, Baumer, & Rosenfeld, 2004;Rosenfeld, Messner, & Baumer, 2001), state (Galea, Karpatti, & Kennedy, 2002;Kennedy, Kawachi, Prothrow-Stith, Lochner, & Gupta, 1998;Putnam, 2001), or across countries (Lederman, Loayza, & Menendez, 2002). The dependent variable was mostly violence (homicide).…”