Results of regression analyses.

Although tourist-to-tourist interaction (TTI) has been identified as an essential element in tourist experiences, the effect of TTI quality on tourist loyalty, and the mechanism underlying this effect is scarcely discussed in the literature. Based on the self-determination theory, this study aims to examine whether and how TTI quality influences tourist loyalty, representing a significant means to achieve destination sustainability. More specifically, this study tested a moderated mediation model in which basic psychological needs satisfaction mediated the relationship between TTI quality and tourist loyalty, while sociability moderated the link between TTI quality and basic psychological needs satisfaction. A survey research approach was used, and 746 complete, usable responses were collected in multiple cities in China. The results revealed that the direct impact of TTI quality on tourist loyalty is mediated by basic psychological needs satisfaction. Furthermore, sociability positively moderates the influence of TTI quality on tourist loyalty. This study extends the TTI literature by demonstrating the mechanism of basic psychological needs satisfaction and tourists’ sociability in the relationship between TTI quality and tourist loyalty. Managerial suggestions are provided for industry practitioners to improve tourist relationship management and the sustainability of destinations.

尽管游客间互动（tourist-to-tourist interaction，TTI）已被证实是游客体验中的核心要素，但现有学术研究中极少探讨TTI质量对游客忠诚度的影响及其内在作用机制。本研究基于自我决定理论，旨在探究TTI质量是否以及如何影响游客忠诚度，而该研究亦是实现目的地可持续性的重要路径。具体而言，本研究检验了一个有调节的中介模型：基本心理需求满足在TTI质量与游客忠诚度之间发挥中介作用，而社交性则在TTI质量与基本心理需求满足之间起到调节作用。本研究采用问卷调查法，在中国多个城市共回收有效问卷746份。研究结果表明，TTI质量对游客忠诚度的直接影响可通过基本心理需求满足实现中介传导；此外，社交性正向调节TTI质量对游客忠诚度的影响。本研究通过揭示基本心理需求满足与游客社交性在TTI质量与游客忠诚度关系中的作用机制，丰富了TTI相关研究领域。同时，本研究为旅游行业从业者优化游客关系管理、提升目的地可持续性提供了管理建议。