“…Fuzzy set theory along with various multi-criteria decision-making techniques such as the analytic hierarchy process (Govindan et al , 2013; Wang et al , 2012), analytic network process (Cabral et al , 2012), interpretive structural modelling (Mathiyazhagan et al , 2013), decision-making trial and evaluation laboratory (Lin, 2013; Lin et al , 2011; Wu et al , 2011), technique for order preference by similarity to ideal solution (Kannan et al , 2014; Wang and Chan, 2013) and data envelopment analysis (Tajbakhsh and Hassini, 2014) have been extensively used. Moreover, simulation has found application in works of Mangla et al , (2014) and Jayant et al (2014). Empirical studies are conducted in 17 per cent of the papers, while applied research appeared in only 6 per cent of papers.…”