The Sharing Economy (SE) is a growing ecosystem focusing on peer-to-peer enterprise. In the SE the information available to assist individuals (users) in making decisions focuses predominantly on community-generated trust and reputation information. However, how such information impacts user judgement is still being understood. To explore such effects, we constructed an artificial SE accommodation platform where we varied the elements related to hosts’ digital identity, measuring users’ perceptions and decisions to interact. Across three studies, we find that trust and reputation information increases not only the users’ perceived trustworthiness, credibility, and sociability of hosts, but also the propensity to rent a private room in their home. This effect is seen when providing users both with complete profiles and profiles with partial user-selected information. Closer investigations reveal that three elements relating to the host’s digital identity are sufficient to produce such positive perceptions and increased rental decisions, regardless of which three elements are presented. Our findings have relevant implications for human judgment and privacy in the SE, and question its current culture of ever increasing information-sharing.

共享经济（SE）是一个成长中的生态系统，专注于对等企业。在SE中，可用于帮助个人（用户）做出决策的信息主要集中于社区生成的信任和声誉信息。但是，这种信息如何影响用户的判断仍在理解中。为了探索这种效果，我们构建了一个人工的SE适应平台，在其中我们改变了与主机数字身份相关的元素，从而衡量了用户对交互的看法和决策。在三项研究中，我们发现信任和声誉信息不仅增加了用户对主机的信任度，可信度和社交性，而且还增加了在其房屋中租用私人房间的倾向。为用户提供完整的配置文件和具有部分用户选择的信息的配置文件时，会看到这种效果。进一步的调查显示，与主机的数字身份有关的三个要素足以产生这种积极的看法并增加租金决策，而与提出的三个要素无关。我们的发现对SE中的人为判断和隐私具有重要意义，并质疑其当前不断增加的信息共享文化。