“…Not surprisingly, a body of research addressing potential determinants of geographic living-cost differentials eventually appeared, with the emphasis thereof reflecting the major geographic frames of reference in which the living-cost differentials were observed. For example, the earlier research initially focused on cities and metropolitan/urban areas (Campbell & James, 2020;Cebula, 1980Cebula, , 1986Cebula, , 1989Cecchetti et al, 2002;Chien & Mistry, 2013;Cobas, 1978Cobas, , 1984Curran et al, 2016;Hogan, 1983Hogan, , 1984Ostrosky, 1983Ostrosky, , 1986Winters, 2009). Subsequent research focused interest on the topic in terms of counties (Cebula et al, 1992;Kurre, 1992Kurre, , 2000Kurre, , 2003Langston et al, 1985), and, finally, did so in terms of states (Aten et al, 2012;McMahon, 1991;McMahon & Melton, 1978).…”