“…According to the TPB, attitude reflects one's opinion of a behavior; subjective norm indicates an individual behavior due to social influence; and perceived behavioral control expresses a person's engagement with a behavior, depending on the perceived difficulty of that behavior (Ajzen, 1991). In recent years, TPB has become the most widely used model to predict pro-environmental behavior, such as recycling (Echegaray & Hansstein, 2017;Cantaragiu & Ghinea, 2020), green decision-making (Pop et al, 2020); energy saving (Wang et al, 2021), and purchase of energy-efficient appliances (Waris & Hameed, 2020). Literature has extended the TPB, adding more dimensions, such as knowledge (Wang et al, 2014;Waris & Hameed, 2020), demographical variables (Wang et al, 2014), personality traits (Wang et al, 2021), and functional values (Waris & Hameed, 2020) etc.…”