Investigating the role of effective factors on electronic word of mouth marketing in the growth of health tourism economy (Study case: Shiraz city)

.Today, with the advancement of digital and internet, verbal marketing has found a new platform for activity. In fact, marketing in social networks has changed verbal marketing. One of the most important results of social networks is the formation of electronic verbal marketing among the members of these networks, which is considered as one of the most important applications of these networks. The phenomenon of tourism has always been important and based on the predictions made, it will become the most profitable industry in the world, and in the meantime, the field of health tourism is of great importance. Hence, the aim of this research is to investigate the role of effective factors on electronic word of mouth marketing in the growth of health tourism economy (case study: Shiraz city). Descriptive research is a survey. The statistical sample of the research included 56 health tourists from Shiraz, who were selected and interviewed non-randomly. Data and scenarios were analyzed using fuzzy cognitive mapping technique and the research model was designed using social network analysis. In this regard, several factors are involved, among which the verbal advertising factors of users, improving the experience of tourists and increasing interaction with tourists were the most important respectively; Because they were more central. Finally, based on the obtained results, suggestions were made regarding the development of electronic word of mouth marketing in the growth of health tourism economy (case study: Shiraz city).