区域一体化对旅游经济增长影响的机制研究——来自长三角城市群的准自然实验

Mechanism of the Effect of Regional Integration on Tourism Economic Growth: Quasi-Natural Experiment from Yangtze River Delta Urban Agglomeration

区域一体化日益成为旅游经济增长的重要诉求,对驱动旅游高质量发展具有深刻意义.本文基于2002—2019年中国217个地级及以上城市数据,通过构建双重差分模型(DID)实证检验了长三角区域一体化政策对旅游经济增长的影响,并对其作用机制展开探析.研究发现:(1)长三角区域一体化政策能显著促进旅游经济增长,且经过PSM-DID检验、安慰剂检验等之后,结论依然成立;(2)长三角区域一体化政策的旅游经济效应具有即时性、异质性特征,在政策实施当期便能发挥效益,且对核心城市旅游经济的影响程度明显高于非核心城市;(3)长三角区域一体化政策能通过技术创新、产业集聚、产业结构升级等传导路径促进旅游经济发展,且通过旅游产业集聚影响旅游经济增长的正向效应最大,科技创新次之,产业结构升级最小.

Regional integration has increasingly become an important appeal for tourism economic growth, which has profound significance to driving the high-quality development of tourism. Based on the data of 217 cities of prefecture level and above in China from 2002 to 2019,this paper empirically tests the impact of the regional integration policy of the Yangtze River Delta on tourism economic growth through the construction of a double difference model(DID),and analyzes its function mechanism. The study found that:(1)The regional integration policy of the Yangtze River Delta can significantly promote tourism economic growth. After the PSM-DID test and the placebo test, the conclusion remains true.(2)The tourism economic effect of the regional integration policy of the Yangtze River Delta is instantaneous and heterogeneous, and plays the benefits of the current period of policy implementation. And the impact on the tourism economy of core cities is significantly higher than that of non-core cities.(3)The regional integration policy of the Yangtze River Delta can promote the development of tourism economy through technological innovation, industrial agglomeration, industrial structure upgrading. And the positive effect of influencing tourism economic growth through tourism industry agglomeration is the biggest, scientific and technological innovation has followed it up, industrial structure upgrading is minimal.