Han, B. and Yu, J., 2020. Quantitative appraisal model for infrastructure stock assets of port city based on GMM. In: Yang, Y.; Mi, C.; Zhao, L., and Lam, S. (eds.), Global Topics and New Trends in Coastal Research: Port, Coastal and Ocean Engineering. Journal of Coastal Research, Special Issue No. 103, pp. 6–10. Coconut Creek (Florida), ISSN 0749-0208.

The traditional quantitative appraisal model for infrastructure stock assets of port city has large appraisal error. To solve this problem, a quantitative appraisal model for infrastructure stock assets of port city based on GMM method is designed. First of all, the paper puts forward the main forms, basic principles, appraisal elements, basic assumptions, appraisal purposes and principles for quantitative appraisal of the infrastructure stock assets of port cities, then determines the spatial relevance of the infrastructure stock, and finally establishes the quantitative appraisal index system for the infrastructure stock assets of port cities, so as to complete the quantitative appraisal of the infrastructure stock assets of port cities based on GMM method. The experimental results show that the quantitative appraisal model based on GMM is less error than that of the traditional model.