Yang, Q.; Su, M.; Wu, Y., and Wang, X., 2019. Economic efficiency evaluation of coastal tourism cities based on fractal theory. In: Guido-Aldana, P.A. and Mulahasan, S. (eds.), Advances in Water Resources and Exploration. Journal of Coastal Research, Special Issue No. 93, pp. 836–842. Coconut Creek (Florida), ISSN 0749-0208.

To improve the economic development efficiency of coastal tourism city, the comprehensive evaluation model of economic efficiency of coastal tourism city based on fractal theory is proposed, and the comprehensive evaluation of economic efficiency of coastal tourism city is carried out. The information flow model of the economic efficiency characteristics of the coastal tourism city is constructed, and the characteristic space of the economic development index series of the coastal tourism city is reconstructed according to the economic development index level of the coastal tourism city. The correlation dimension characteristic quantity of economic information of coastal tourism city is extracted, and the mutual information characteristic quantity of income growth and development efficiency of coastal tourism city is analyzed. The fuzzy decision-making method is used to evaluate the economic efficiency of the coastal tourism city. The statistical analysis and robustness test of the economic development level of the coastal tourism city are carried out by using the fractal theory method. The simulation results show that this method is more accurate and reliable in evaluating the economic efficiency of coastal tourism cities and improves the economic growth efficiency of coastal tourism cities.