“…However, most existing studies [7,8,11,12] have focussed narrowly on individual and situational factors affecting green purchasing behaviour, such as psychological benefit, social values, functional values, price, etc. Recently, environmental concern and government policy were considered to have an important impact on the purchase intention of the green products [8,13]- [16], but these haven't been thoroughly studied. According to Elmore [17], policy tools are the authoritative means to achieve a specific goal, potentially influencing individual and institutional conduct.…”