“…Eulau and Karps (1977), for example, identified several components of representation: service responsiveness, allocation responsiveness, policy responsiveness, and symbolic responsiveness. Empirically based assessments of "representation" also encompass analyses of electoral systems (Cox, 1997;Powell, 2000), the translation of votes into seats in legislatures (Erikson, 1988;Powell, 2000), the congruence between legislators and constituents (Miller & Stokes, 1963;Achen, 1978;Erikson, 1978;Weissberg, 1978Weissberg, , 1979Kuklinski, 1979;Stone, 1979;Hurley, 1989Hurley, , 1991Hill & Hurley, 1999;Arnold, 2003), minority representation (Canon, 1999;Tate, 2003), districting and redistricting (Canon, 1999;Cox & Katz, 2002), and the roles of representatives (Eulau et al ., 1959;Fenno, 1978;Norton & Wood, 1993;Rosenthal, 1998;Judge, 1999;Lee & Oppenheimer, 1999), just to name a few (see also , Jewell, 1985;Thomassen, 1994;Kuklinski & Segura, 1995, for extensive literature reviews). At a broader level, the representation congruence studies are conceptually related to the studies of aggregated opinion and governmental decisions or policies (see Page & Shapiro, 1992;Erikson et al ., 2002;Wlezien, 2004;Soroka & Wlezien, 2005) which have generally found a close relation between aggregate opinion and governmental policies.…”