“…Moreover, for our context, when relying on this strategy we end with interesting relationships between the indexes and their decomposition (Table 1). Alternative methods include multi-objective programming (see, for example, Zimmermann (1978), Charnes et al (1989), Kao and Chan (2013), Tohidi and Razavyan (2013), Despotis et al (2016)), the law of one price (Kuosmanen et al (2006), and Fang and Li (2015)), or industry-based approaches (Li and Ng (1995), Ylvinger (2000), Zelenyuk (2003, 2007), Walheer (2016a, b), Zelenyuk (2006Zelenyuk ( , 2016, and Färe and Karagiannis (2017)). These approaches make extra assumptions on either the technologies or the input prices, or are more complex (e.g.…”