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农业与农村发展学院学术双周系列讲座

发布时间:2018-06-28 

讲座主题:《Exploring hidden factors behind online food shopping from Amazon reviews: A topic mining approach》

报告人:高志峰 副教授  佛罗里达大学食品与资源经济系

时  间:7月2日(周一)14:00

地  点:明德主楼931会议室

主持人:仇焕广 教授  中国人民大学农业与农村发展学院

主讲人简介:

高志峰,佛罗里达大学食物与资源经济系副教授。研究方向包括农产品市场营销、消费者行为、农业技术的经济可行性和种植者对新技术的态度等。在American Journal of Agricultural Economics, Food Policy, Agricultural Economics等国际有影响力的学术期刊发表上发表研究论文50余篇。在Journal of Integrative Agriculture 和Journal of Agriculture and Applied Economics两个国际学术期刊担任编委。

讲座内容:

Despite the popularity of online food and grocery shopping, little research has been conducted to understand the factors that influence consumers’ online food purchases. Using a topic modeling approach, our results show four interpretable factors have significant impacts on the helpfulness of customer reviews: Amazon Service, Physical Feature, Flavor Feature, and Subjective Expression. Readers of customer reviews perceive objective reviews as more helpful than subjective reviews. In addition, customer review helpfulness has a concave relationship with the length of the reviews.