Research on tourism economic effect under the threshold of new-type urbanization in coastal cities of China: From the perspective of development economics

From the perspective of development economics, this paper analyzes the dynamic changes of tourism economic effects during the process of new-type urbanization, explains the connotation of new-type urbanization and establishes an indicator system for its evaluation. Entropy method is used to determine corresponding weights and measure the level of new-type urbanization in coastal cities of China from 2000 to 2019. A panel threshold model is adopted with new-type urbanization as a threshold variable, empirically testing the impact of tourism on regional economy during different phases. Results show that: (1) During the sampling period, the level of new -type urbanization in coastal cities all increases, but the increment speed of each city is different, with Shenzhen, Zhuhai, Guangzhou and Shanghai in the leading level. (2) There is a double threshold effect of tourism on regional economic development in coastal cities, that is, tourism economic effect in coastal cities shows a sig-nificant trend of gradually strengthening when new-type urbanization crosses two thresholds (0.323 and 0.386). (3) Promoting effect of tourism on economic development presents regional heterogeneity in coastal cities of China. Thereinto, tourism economic effect of coastal cities in East China shows the most significant improvement in the stages of new-type urbanization development.