The Mechanism of Land-Sea Integration's Contribution to the Unified National Market:An Empirical Analysis Based on the Competitiveness of China's Coastal Ports
This paper explores the contribution mechanism of land-sea integration in accelerating the construction of the unified national market.First,a competitiveness assessment system for port land-sea integration is constructed,considering multiple dimensions affecting the port's integration competitiveness.Special attention is given to new quality productive forces indicators such as digital technology innovation,and the entropy weight method is utilized to objectively evaluate the comprehensive strength of land-sea integration of China's major coastal ports.On this basis,the paper employs the Huff's model to deeply explore the relationship between a port's city radius and its land-sea integration competitiveness.The theoretical results show that ports with stronger land-sea integration competitiveness are usually more attractive to cities,thus expanding their hinterlands.Additionally,this paper uses the trade data of China's prefecture-level cities to investigate the impact of port land-sea integration competitiveness on the trade growth of their hinterland cities using spatial econometric methods.The study results clearly reveal a significant positive correlation between port land-sea integration competitiveness and the trade growth of hinterland cities.This finding suggests that strengthening port land-sea integration competitiveness is an effective way to promote the unified national market and the coordinated development of the regional economy.
Port CompetitivenessLand-Sea IntegrationUnified National MarketNew Quality Productive ForcesSpatial Econometrics
NETL
NSTL
万方数据
