Complexity in the Acceptance of Sustainable Search Engines on the Internet: An Analysis of Unobserved Heterogeneity with FIMIX-PLS

Table 1

Related works.

Authors	Descriptions
Chao et al. [21]	Present an investigation of the participating agents when users search for information with search engines, especially studying the beliefs and risks that are taken in their searches
Palos-Sanchez and Saura [5]	Analyse the Ecosia sustainable search engine using the Unified Theory of Acceptance and Use of Technology (UTAUT) and then analysing the results with PLS-SEM (Partial Least Squares-Structural Equation Modelling)
Rangaswamy et al. [22]	Research the different strategic perspectives of search engines from the point of view of sustainability and sustainable development
Keirstead [23]	Investigates the searches made with sustainable search engines and the user behaviour
Liaw et al. [24]	Use the TAM with PLS to find what the users feel about the information found with different search engines
Kamis and Stohr [25]	Develop a PLS model to determine the importance of search engines when an online purchase is made, using factors such as purchase decision, trust or perceived utility, and the behaviour of different users