An empirical study on the economic linkage characteristics of Yangtze River port cities based on discrete second-order derivatives

Data publikacji: 03 cze 2023

Otrzymano: 23 cze 2022

Przyjęty: 26 paź 2022

DOI: https://doi.org/10.2478/amns.2023.1.00213

Słowa kluczowe

Discrete second-order derivatives, Hong Kong-city economic linkage, Correlation analysis method, Gray correlation model, Development indicators

© 2023 Fang Xie et al., published by Sciendo

This work is licensed under the Creative Commons Attribution 4.0 International License.