Sharing economy is considered as a disruptive innovation in the Internet age and inevitably brings huge concerns and risks for tourists. This study aims to develop a multidimensional scale to understanding the tourist risk perception in the sharing economy (TPRSE). First, focus group interviews, and online text analysis were conducted to elicit the initial items. Second, pilot survey involving a sample size of 218 was conducted, confirmatory factor analysis (CFA), and item response theory (IRT) were applied to refine this preliminary item pool. Third, the TPRSE scale was further validated using the CFA and IRT (n = 745). The TPRSE scale was successfully developed and validated, which including five dimensions of financial risk, social risk, privacy risk, performance risk and physical risk. This study advances the theories of risk perception in the context of sharing economy and provides management strategies to reduce perceived risks in Airbnb accommodations.

共享经济被认为是互联网时代的颠覆性创新，不可避免地给游客带来巨大的担忧和风险。这项研究旨在建立一个多维量表，以了解共享经济中的游客风险感知（TPRSE）。首先，进行了焦点小组访谈和在线文本分析以得出最初的项目。其次，进行了样本量为218的试点调查，采用了验证性因子分析（CFA）和项目响应理论（IRT）来完善此初步项目库。第三，使用CFA和IRT进一步验证了TPRSE量表（n = 745）。TPRSE量表已成功开发和验证，包括财务风险，社会风险，隐私风险，绩效风险和人身风险五个方面。