“…Predicated on the logic that "two heads are better than one" (Dalkey, 1972), Delphi method is developed to reach a consensus from an expert panel for a complex problem where knowledge is limited (Williams andWebb, 1994, Hauck et al, 2007;Phillips, 2000;Dalkey and Helmer, 1963;Linstone and Turoff, 1975). The Delphi methodology can be used for a plethora of cases, such as sustainable tourism (Miller, 2001;Choi and Sirakaya, 2006), CSR (Hussein, 2010;Talaei and Nejati, 2008), human resources development (McGuire and Cseh, 2006), government planning (Linstone and Turroff, 2002), environmental management (Gokhale, 2001), medicine (Efstathiou et al, 2008;Keeney et al, 2001) and strategic management (Loo, 2002), while it is applied to select performance indicators in several fields (Ma et al, 2011). Typically, Delphi methodology involves expert panel, repeated rounds, opportunity for respondents to reconsider their responses and finally, anonymity of the expert panel.…”