“…A similar number of articles (21 articles, 23%) were classified into the second stage, exploring, in which the studies aimed to enrich or complement PT principles, for example, to investigate the possible moderators that regulate the patterns of reference dependence (e.g., Sellers & Nicolau, 2023), loss aversion (e.g., Xu & Zeng, 2022), diminishing sensitivity (e.g., Nicolau et al, 2023), and so on. The remaining majority (55 articles, 59%) were all in the stage of developing, which refined and extended PT beyond its original research setting to underpin arguments and help build knowledge in new research fields and topics, including but not limited to sunk cost (e.g., Su et al, 2022), sales promotion (e.g., Lim & Ok, 2022), inventory management (e.g., C. Li & Yin, 2020), environmental behavior (e.g., Y. Huang et al, 2021), and value of time (e.g., J. M. Chen et al, 2020).…”