“…Since the work of Allport and Key, numerous studies (many summarized in Table 1) have been undertaken at various geographic scales, examining a series of dependent variables including attitudes to racial minorities, Kitschelt, 1996;Mayer, 1995;Robinson, 1980;Sigelman & Welch, 1993;Surace & Seeman, 1967;Yancey, 1999 Biggs & Knauss, 2012;Bowyer, 2008;Ford & Goodwin, 2010;Harris, 2012 + French departements Kitschelt, 1995; Mayer, 1995 + U.S. counties Blalock, 1957;Branton & Jones, 2005;Eitle et al, 2002;Giles & Evans, 1986;Glaser, 1994;Hopkins, 2011;Key, 1949;Reed, 1972;Rocha et al, 2011;Stein, Post, & Rinden, 2000;Wright, 1976+ Hood & Morris, 1997, 2000Morris, 2000− Corzine et al, 1983Dixon, 2006;Newman & Johnson, 2012 +/− Campbell, Wong, & Citrin, 2006= Louisiana Parishes Giles & Buckner, 1993Giles & Hertz, 1994;Voss, 1996 + Metropolitan areas Arp et al, 1999;Dixon, 2006;Fossett & Kiecolt, 1989;Jacobs & Carmichael, 2001, 2002Rocha & Espino, 2009;Taylor, 1998+ Ha, 2010+...…”