Retraction Note: Analysis of the knowledge and innovation-based customer expectations for the green crypto assets in investment strategies using artificial intelligence and facial expression-based fuzzy modelling (Quality & Quantity, (2025), 59, 3, (2861-2890), 10.1007/s11135-025-02098-7)

The Editor-in-Chief has retracted this article over concerns that Table 2 in this article is similar to Table 3 in a previously published article with two authors in common (Kou et al. 2024). Additionally, the inclusion of excessive self-citations by one or more of the article’s authors raises a concern. The Editor-in-Chief therefore no longer has confidence in the research presented in this work. Zuleima Karpyn has stated that their name and affiliation were used without her knowledge or permission. None of the authors have responded to the correspondence from the Publisher about this retraction.