ion, of course, presupposes conceptualization, and analytical foci usually revolve around ‘‘sensitizing’’ concepts that ‘‘suggest directions along which to look’’ thus providing ‘‘a general sense of relevance and guidance in approaching empirical instances’’ (Blumer, 1954:7). ‘‘Every science,’’ notes Simmel ([1908] 1959:313; [1917] 1950:11, 21), ‘‘rests upon an abstraction inasmuch as it consid...