Host-guest interactions represent special, local experiences that differentiate peer-to-peer (P2P) accommodation from those that conventional hotels offer. However, the features and effects of host-guest interactions in P2P accommodation are seldom investigated systematically. This study develops a measurement scale of host-guest interactions and identifies how and when such interactions influence commercial friendships and guests’ value co-creation behaviors in P2P accommodation. Results suggest that such interactions represent a multi-dimensional construct, including accommodation information communication, individualized service, collaborative activities, and hospitality behavior. Except for instrumental interactions (i.e., accommodation information communication), three dimensions of host-guest interactions have positive effects on guests’ value co-creation behaviors through commercial friendships, suggesting the significance of building deep host-guest interactions in P2P accommodation. For highly sociable guests, host-guest interactions play a larger role in facilitating commercial friendships. Based on these results, theoretical and practical implications are discussed.

主客互动代表特殊的本地体验，将点对点 (P2P) 住宿与传统酒店提供的住宿区分开来。然而，很少系统地研究 P2P 住宿中主客互动的特征和影响。本研究开发了主客互动的测量量表，并确定了这种互动如何以及何时影响商业友谊和客人在 P2P 住宿中的价值共创行为。结果表明，这种互动代表了一个多维结构，包括住宿信息交流、个性化服务、协作活动和好客行为。除了工具性交互（即住宿信息交流），主客互动的三个维度通过商业友谊对客人的价值共创行为产生积极影响，表明在 P2P 住宿中建立深度主客互动的重要性。对于善于交际的客人，主客互动在促进商业友谊方面发挥着更大的作用。基于这些结果，讨论了理论和实践意义。