DEMATEL Method

This study examines the political and economic factors influencing the decision of investors in the stock exchange. For this purpose, first, by using the Meta Synthesis method, the factors affecting investment decisions were extracted from previous researches and then, using Delphi technique, the identified features were evaluated and approved by experts. Then, using DEMATEL method, the relationships between the factors were analyzed, and finally, the sequence and rank of each factor were determined based on the Interpretive Structural Modeling method. Based on the results obtained from the DEMATEL method, "Foreign political news and revolutionaries" and "International economic revolutionaries" are the most influential factor on other factors and "Predicting the country's economic situation in the future" is the most influential factor among other factors. Also, the results of the Interpretive Structural model approach show that Political factors such as the "Comments of political officials", "Iran's political relations with other countries" and "Internal Security and Stability" have the greatest impact on investment decisions.

This study aims to identify and rank the competitive advantages of hospital hotels in Islamic countries, with a focus on an Iranian case study. Given the unique needs and cultural context of Islamic nations, the research investigates the key factors that contribute to the success of hospital hotels, including elements such as treatment measures, family hospitality, halal nutrition, and worship arrangements. The primary methodology used is the DEMATEL (Decision-Making Trial and Evaluation Laboratory) method, which is a pairwise comparison-based decision-making tool that effectively identifies relationships and hierarchies among system elements. Expert judgment from hospital hotel managers, employees, and Ministry of Health officials was employed to construct a Direct Influence Matrix, which was then normalized to assess both direct and indirect influences among the identified criteria. The results reveal that "Treatment Measures" and "Family Hospitality" are the most influential factors, acting as key drivers in enhancing overall service quality. Conversely, "Halal Financing" and "Worship Arrangements" were found to be the most dependent factors, influenced by the other elements in the system. Additionally, criteria such as "Patient Relationships" and "Halal Nutrition" exhibited high levels of prominence, indicating their central role in the competitive advantage of hospital hotels. The study concludes that focusing on improving core criteria like treatment measures and family hospitality will enhance the competitive position of hospital hotels in Islamic countries. These findings provide actionable insights for hospital hotel management and policymakers seeking to enhance service quality and cultural alignment in healthcare settings.