“…average cost, marginal cost and the extent of scale and scope economies, as well as the potential efficiency gains from operating at an efficient scale. To date, there are analyses of economies of scale and scope in higher education for Australia (Lloyd, Morgan and Williams 1993;Worthington and Higgs 2011), China (Cheng and Wu 2008;Hou, Li and Min 2009;Li and Chen, 2012), Germany (Johnes and Schwarzenberger 2011), Japan (Hashimoto and Cohn 1997;Nemoto and Furumatsu 2014), Taiwan (Fu, Huang and Yang 2011), the UK (Johnes, Johnes and Thanassoulis 2008;Johnes and Johnes 2009), and the US (Sav 2011;Agasisti and Johnes 2015). However, most of these studies focus on the estimation of scale and scope economies in conventional (face-to-face) instruction, somewhat neglecting product differentiation in the form of distance education (Cohn and Cooper 2004).…”