讲座题目：Dimensional Ratings, Textual Reviews, and Review Helpfulness in a Multi-Dimensional Rating System: An Empirical Investigation
报告人：张紫琼 教授
邀请人：崔淼 教授
报告时间：2023年4月10日 下午14:30-15:30
报告地点：正规买球app排行十佳平台B205
讲座摘要：
Recently, many online review platforms have introduced a multi-dimensional (MD) rating system that provides richer quantitative data to reduce users’ information processing effort and information uncertainty. In an MD rating system, reviewers are required to provide ratings on specific product dimensions, selected by the platform, in addition to providing a textual review. In this paper, we examine how the presence of multidimensional rating affects the provisioning of textual reviews and the consequent effect on textual review helpfulness. Specifically, we leverage four quasi-experiments in a large hotel review website and find that in the review generation stage, the presence of rating on a given dimension can increase the depth of information contained in the textual review about that specific dimension. In the review consumption stage, similar to the results of past studies, we find that the depth in the textual review of a dimension is positively related to helpfulness. More importantly, we find that such a relationship is moderated by the nature of product dimension. Specifically, we find that when a dimension is listed in dimensional ratings, the positive relationship between the dimension depth and review helpfulness is amplified for a horizontally differentiated dimension but attenuated for a vertically differentiated dimension.
人物简介：
张紫琼，哈尔滨工业大学经济与管理学院副院长、博士生导师。近年来，在MISQ、TM、JTR等期刊发表录用论文50余篇；主持国家自然科学基金5项(优秀青年项目、重点项目等)以及教育部新世纪优秀人才支持计划项目、教育部霍英东教育基金青年教师项目各1项。获教育部CJ学者奖励计划(青年学者)、Elsevier中国高被引学者、黑龙江省自然科学二等奖1项、黑龙江省科技进步二等奖1项、教育部全国百篇优秀博士学位论文提名奖等。兼任国务院学位委员会第八届管理科学与工程学科评议组成员、国内多个学术组织常务委员/常务理事/委员/理事，SSCI期刊JECR副编辑。
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