Reducing Single-Use Cutlery with Green Nudges: Evidence from China’s Food Delivery Industry

时间：2022年10月28日（周五）10:00-11:30

会议形式：线上参会

主持人：雷晓燕、易君健

参与老师：赵耀辉、李玲、刘国恩、张丹丹、黄炜

主讲人：潘聿航，北京大学全球健康发展研究院

摘要：This study investigates the impact of digital green nudges on single-use cutlery consumption in China’s food delivery industry. Collaborating with Alibaba’s online food delivery platform Ele.me, we analyze detailed customer-level monthly consumption data from 2019 to 2020 and find that the introduction of two digital green nudges — changing the default to “No Cutlery” at checkout and rewarding consumers “green points” that can be used to plant trees under their name — increased the share of environmentally friendly orders by 651%. Females, middle-aged, elderly, and high-income people are especially sensitive to green nudges. The aggregate environmental benefits from the green nudges are economically significant: during the 27 calendar months of enforcement of the green nudges in the three Chinese cities (Shanghai, Beijing, and Tianjin), consumers avoided using more than 140 million sets of single-use cutlery, corresponding to reducing 1,420 tons of plastic waste and saving 177,000 trees. These findings suggest that digital green nudges and platform companies can be powerful partners in promoting individuals’ environmentally friendly behaviors.

主讲人简介：潘聿航，北京大学全球健康发展研究院助理教授（2022年9月起）。加入北大前，他曾任香港大学经济与工商管理学院经济学系博士后研究员（2021-2022）。他2015年本科毕业于北京师范大学，2021年于香港科技大学取得博士学位。他的主要研究领域为环境经济学、健康经济学、以及发展经济学，着重于使用因果推断的方法研究环境污染、政策制定、气候变化对于健康与社会福利的影响。他的研究论文发表于Journal of Environmental Economics and Management，Nature Sustainability等经济学和科学类期刊。