How do foreign countries ensure the healthy development of the stock market? I hope every country can list it. Thank you.

The main mode, because the stock market is good, the price-earnings ratio is large, and the capital investment is large, will increase economic confidence and naturally promote economic development. Foreign investment is basically free, and the state does not interfere in the stock market. It is necessary to make the market develop healthily and intervene in the market appropriately so that the market will not be overheated and weak. China sets daily limit and t+0 limit to prevent small investors from taking excessive risks in assets. For developed countries, capital flows drive economic development. Although this is also the case in China, China's economic development prospects are very good, and we don't want the economy to overheat. In 2006 and 2007, the stock market was overvalued, which also led to the stock market bubble and crash. The low P/E ratio of the stock market is healthy for the investment in the stock market. Once the company's profitability is low, whether it is underestimated or overestimated, the market will fluctuate greatly. However, the market is like this, and macro-control is somewhat inadequate. Today's market liberalization will also increase risks. Although the China stock market has not increased much in recent two years, this trend is better than that of the US stock market. The overvalued American stock price and bad economy may make a wave of crisis begin soon.