This study examines the factors influencing the intention to use travel apps in emerging economies based on the technology acceptance model (TAM) and diffusion of innovation (DOI) theory. A structured questionnaire was used to collect cross-sectional data from a sample of 313 smartphone users who had used travel apps. Data were analysed using partial least squares structural equation modelling (PLS-SEM) and necessary condition analysis (NCA). The study found that relative advantage and compatibility are must-have and should-have factors of perceived usefulness. Next, it was found that perceived usefulness is a should-have but not a must-have factor of perceived usefulness. Furthermore, complexity and trialability are must-have and should-have factors of perceived ease of use. Additionally, perceived usefulness and perceived ease of use have a significant positive influence on intention. However, both perceived ease of use and perceived usefulness are not necessary conditions for intention. This is the very first study to explore factors of the intention to use travel apps based on the TAM and DOI using both sufficiency and necessity logic.

本研究基于技术接受模型（TAM）和创新扩散（DOI）理论，探讨了影响新兴经济体使用旅游应用程序意愿的因素。使用结构化调查问卷从 313 名使用过旅行应用程序的智能手机用户样本中收集横截面数据。使用偏最小二乘结构方程模型（PLS-SEM）和必要条件分析（NCA）对数据进行分析。研究发现，相对优势和兼容性是感知有用性的必备因素和应有因素。其次，发现感知有用性是感知有用性的应有因素，但不是必须具备的因素。此外，复杂性和可试用性是感知易用性的必须具备和应该具备的因素。此外，感知有用性和感知易用性对意图有显着的积极影响。然而，感知的易用性和感知的有用性都不是意图的必要条件。这是第一项使用充分性和必要性逻辑来探索基于 TAM 和 DOI 的旅行应用程序使用意图因素的研究。