Survey of customers' perception and adoption with the mandatory plastic bag charging in Japan

We conducted a questionnaire survey of 218 persons of 10s to 60s in Japan via the internet from 11th to 14th, December 2020, and obtained 200 valid answers. We grouped the respondents according to the adoption of the reduction to use plastic bags; 100 of those answered that they have reduced to use plastic bags (Group 1), 100 of those answered no behavior changes with charging (Group 2). Questionnaire includes questions related to the attempt to reduce plastic shopping bags, observing others' behavior, reuse behavior, pro-environmental habit, environmental risk perception, and a sense of community. We asked the respondents to state to what extent they carry out or concerned about above questions with 5-point Likert scale from 1 (strongly disagree) to 5 (strongly agree).本研究于2020年12月11日至14日通过互联网面向日本10至60岁年龄段的218名受访者开展问卷调查，最终回收有效答卷200份。研究依据受访者减少使用塑料袋的行为表现进行分组：其中100名表示主动践行减少塑料袋使用行为（组别1），剩余100名表示在塑料袋收费政策下未做出相关行为改变（组别2）。问卷涵盖减少塑料购物袋使用的尝试、他人行为观察、重复使用行为、亲环境习惯、环境风险感知以及社区归属感等相关问题。本研究采用1（完全不同意）至5（完全同意）的5级李克特量表（Likert scale），要求受访者自评其对上述各问题的践行程度或关注程度。