“…Many economists have tried to come up with the conditions under which the Principle of Minimum Differentiation is restored. These researchers 3 include: Stahl (1982), De Palma et al (1985, Hurter and Lederer (1985), Lederer and Hurter (1986), Rhee et al (1992), De Fraja and Norman (1993), Neven and Thisse (1990), Anderson and Neven (1991), Jehiel (1992), Friedman and Thisse (1993), Tabuchi (1994), Veendorp and Majeed (1995), Zhang (1995), Irmen and Thisse (1998), Mai and Peng (1999), Liang and Mai (2006), Matsushima and Matsumura (2006), Tseng et al (2010), and Liang et al (2012). Most of the above literature focuses on the use of mill pricing by competing firms, except Hurter and Lederer (1985), Hurter (1986), De Fraja andNorman (1993) and Liang et al (2012), who analyze the optimal location by using spatially discriminatory pricing.…”