“…Many studies use the grey relational analysis (GRA) methods in diverse research areas when the literature is examined. For instance, evaluation of online travel agencies (Gavcar and Organ, 2020) and evaluation of the companies' financial performance (Kula et al, 2016;Ecer and Gunay, 2014;Gunay et al, 2018;Suvvari et al, 2019;Dinler, 2021;Çekici and Babacan, 2022), evaluation of smartphone technical features' significance level (Sahin and Aydemir, 2019), supplier selection (Rajesh and Ravi 2015;Wang et al, 2017;Soylemez et al, 2021), evaluation of energy consumption and CO 2 emission of transportation sector (Yuan et al, 2017), evaluation of bank performance (Guru and Mahalik, 2019), evaluation of social media usage performance of companies (Mercangoz et al, 2018), and evaluation of website performance (Wuwei, 2009;Vatansever and Akgul, 2018;Zhang, 2018).…”