“…Previous effects of higher order cities over lower order cities and vice versa can also be contextualized in the literature of backwash and spread effects (Hoselitz, 1955;Myrdal, 1957;Hirschman, 1957;Henry, Barkley, and Bao, 1997;Chen and Partridge, 2013;Ganning, Baylis, and Lee, 2013). Backwash effects are understood as those negative effects derived from growth of a city on the remaining territory as congestion costs or highqualification human capital migration ("brain drain").…”