What are the four stages of tourism development in Inner Mongolia Autonomous Region?

The start-up stage, the industrialization process stage, the in-depth marketization stage of the tourism industry, and the stage of comprehensive integration into the development strategy. According to the overall tourism development plan of the Inner Mongolia Autonomous Region, the Inner Mongolia Autonomous Region should learn from my country's tourism development process and summarize it into four stages: the start-up stage, the industrialization process stage, the in-depth marketization stage of the tourism industry, and the comprehensive integration into development strategy stage.