The article discusses how tourism in cities will be a key factor in future competition, focusing on regions and urban areas. Using the Yangtse River Delta as an example, the study looks at how tourism can be developed in a way that benefits multiple cities in the region. The researchers suggest a model where tourism development is shared among different cities, leading to cooperation and innovation in tourism products and marketing. By studying cities like Shanghai, Nanjing, and Hangzhou, the researchers found that working together can help promote tourism in the Yangtse River Delta region.