天津居民使用购物袋偏好研究——应用联合选择实验以及潜在分类分析

【摘要】 由于大量使用塑料袋,白色污染问题在中国的大城市中非常普遍。天津,作为中国第五大城市,和其他大城市一样深受随之引起的环境问题的困扰。为了有力地减少塑料袋的消费量,从2008年6月1日起,中国正式开始实施限塑令,要求各大超市及零售商店对塑料购物袋进行收费。随着限塑令的颁布,许多塑料袋生产厂家被迫关闭,但是市场上仍有相当数量的塑料袋出售。本研究的假设为目前对每个中等大小塑料袋收费0.3元的价格过低,以致不能有效地改变消费者的购买行为。研究采用联合选择实验,通过调查及结果分析探究人们对不可降解塑料袋替代品的偏好和支付意愿。结果表明大部分居民不喜欢不可降解塑料袋,并且会使用其他材料制成的价格合理的购物袋。纸袋和其他降解周期短、耐久性好的袋子的销售存在特定的市场,在这些市场中价格不是决定消费者选择的重要因素。更多还原

【Abstract】 White pollution is prevalent in China’s large cities as a result of the high consumption of plastic bags.Tianjin,the fifth largest city,like other large cities in China is suffering from severe environmental problems due to high plastic bag consumption.To curtail plastic bag consumption,a ban was enacted in China in June 1st,2008 requiring large retail stores to charge for the bags.As a result,many plastic bag manufacturers were closed but because of the popularity of plastic bags,there are still many bags being manufactured.The hypothesis of this study is that the popularity and charges for the current plastic bags of 0.3CNY is too low to change consumption behavior.The purpose of this study is to explore the willingness of people to substitute plastic bags with bags made from alternative materials and their willingness to pay for them.This study used a conjoint choice experiment to measure Tianjin residents’preferences for degradable and non plastic materials bags.Conjoint choice experiments allow a respondent to choose a preferred product based on the characteristics or attributes of a product.The results of the analysis show that most people do not like plastic bag and would use other material sold at a reasonable cost.Based on the latent class and socio-demographic segmentation results there are preference distinctions among age groups and there exists niched markets for paper and other non-degradable plastic bags where costs are of a lesser concern in consumer decisions when purchasing a bag.更多还原