Research on the cross-regional cooperation model and coordination mechanism of China's tourism industry Research on the constructionalization and cognitive mechanism of Chinese degree construction Research on ecological evolution and function mechanism of the industrial cluster Research on the spatial-temporal evolution and coupling coordination of the scale and structure of China's manufacturing industry Research on the integration and development of smart tourism industry Research on collaborative innovation mechanism of industrial cluster Research on policy tools for sustainable development of China's tourism industry Research on the circumvention of foreign capital control in China's grain industry