A: In order to control the overall price level, prevent the price from skyrocketing and plunging, and stop the blindness of the market economy, the state has adopted a legal form and stipulated a series of regulatory measures. Since stabilizing the overall price level is an important macroeconomic policy goal of the state, the state determines the overall market price level control goal according to the needs of national economic development and social affordability, and incorporates it into the national economic and social development plan, and comprehensively uses policies and measures in the fields of currency, finance, investment, import and export to achieve it. The government can establish an important commodity reserve system, set up a price control fund, control prices and stabilize the market. In order to meet the needs of price regulation and management, the government price department should establish a price monitoring system to monitor the price changes of important commodities and services. When the market purchase price of important agricultural products such as grain is too low, the government can protect the price during the purchase and take corresponding economic measures to ensure its realization. The price adjustment fund is mainly used to stabilize prices when the prices of important commodities fluctuate. Under the mechanism that prices are mainly formed by the market, the first choice for price control is to establish commodity price risk funds closely related to people's lives. It is of great significance to establish risk funds for grain, grain and other important commodities. If the country wants to participate in the adjustment of market prices, it must master and control a certain amount of materials. By establishing an important commodity reserve system, the state maintains a certain reserve capacity for important commodities such as grain, cotton and oil, so as to handle commodities, stabilize prices and maintain market stability when market prices fluctuate. Establishing a nationwide price information monitoring network, tracking and monitoring market price changes, regularly publishing the reference prices of important commodities, and providing market price information for the government and enterprises at the same time will not only help enterprises and governments to grasp market dynamics and timely regulate prices, but also help enterprises to grasp the national price policy in time and make correct price decisions.

When the prices of important commodities and services have risen or are likely to rise significantly, the people's governments of the State Council and provinces, autonomous regions and municipalities directly under the Central Government can take intervention measures such as limiting the price difference rate or profit rate, setting price limits, implementing the price increase declaration system and the price adjustment filing system. However, the intervention measures taken by provinces, autonomous regions and municipalities directly under the Central Government shall be reported to the State Council for the record. Under abnormal circumstances such as large fluctuations in the overall market price level, the State Council can take emergency measures such as temporary centralized pricing power, partial or total price freezing, etc. in the whole country or some regions. However, when the situation of implementing intervention measures and emergency measures is eliminated, the intervention measures and emergency measures should be lifted in time.

Under special circumstances, properly intervening the market price according to law belongs to the proper adjustment of the market by the government to make up for the market failure, which is a common practice all over the world and an important content of modern market economy theory and practice.