The world-famous G20 leaders' "Financial Market and World Economic Summit" did not achieve some "substantial" results as expected before the meeting. For example, we announced a joint interest rate cut on the basis of understanding the severity of the crisis, or made pragmatic "rules of the game" changes to the risk management model organized by the IMF and the World Bank, giving emerging market countries more say, or the "hard" constraints and operational changes to the US dollar monetary system were unexpected. However, the significance of this summit lies in laying a solid "trust" foundation for governments of all countries to jointly act to resist the crisis and restore market confidence, which is mainly reflected in the following three points: First, the strategy of future development and cooperation of the world economy has been established. Emerging market countries that have relied too much on Europe and the United States and whose economic development is seriously unbalanced, Europe and the United States, the source of the crisis and the hardest hit areas, will naturally emphasize the interests of their respective countries and the intervention role of the government. These practices go too far, and it is easy to produce protectionism in trade and investment, and it is easy for the government to intervene instead of the market. However, the G20 leaders attending the meeting agreed that market principles, together with an open trade and investment system and an effectively regulated financial market, can once again give birth to the vitality, change and entrepreneurial spirit needed for social progress and economic development that have been restrained by the current crisis. It is by activating these factors that we can ensure a comprehensive recovery and a more sustainable and balanced development of the global economy in the future and help our society achieve the urgent goals of employment and poverty reduction. On the other hand, through this summit, American guests confirmed the ally base of "* * * cooperation" that is vital to them. In the statement of this meeting, the world can clearly see that all governments in the world agree with this crisis management consciousness of the US government, and hope to overcome the current global challenges by establishing sustained partnership and persisting in cooperation and multilateralism, so as to restore the stability and prosperity of the world economy as soon as possible. Second, the dollar-dominated international monetary system is being reformed. Although the market concept adhered to by the American government has not wavered, it has indeed played an indispensable positive role in the development and prosperity of the world economy. However, the unconstrained dollar-dominated international monetary system is shaking. The statement of this meeting not only did not emphasize the role of the International Monetary Fund and the World Bank, which were highly valued in the past, but accepted the crisis management framework of multilateralism in Asia and other regions. In addition, the finance ministers of China, Japan and South Korea met in Washington, agreed to expand the scale of currency swap, and stressed the importance of regional cooperation. This incident also implies that the United States has to accept the fact that the dollar system has become very fragile in this crisis, and has to admit the trend of regional financial cooperation formed to get rid of the dollar crisis. Of course, a new monetary system that replaces the dollar does not exist today. Although French President Nicolas Sarkozy, the current executive chairman of the European Union, has previously stressed that the euro should play a more important role in the reconstructed monetary system, the European economy itself, the existing international trade and investment settlement system and the maturity of the European financial market cannot make countries around the world spontaneously choose the euro instead of the battered dollar. Recently, the US dollar has continued to rise and the euro has continued to fall. This is a decisive choice made by the market at the worst moment of the crisis, that is, when the global risk aversion is increasing. However, we see that the constraints on the dollar monetary system are being strengthened in various ways. In addition to the new signs that countries are replacing the US dollar in crisis management, the statement of this summit particularly emphasizes the need for stricter supervision of financial innovation activities supported by the US dollar monetary system by financial institutions at the transnational level to ensure that the future world financial system is "transparent" and "credible". To this end, the summit requires international financial regulators and organizations to continuously improve their professional supervision level and play necessary and effective "early warning" functions in the fields of infrastructure and trade financing. 3. "China Brand" shows sincerity and confidence to the world. Facing the complicated domestic and international economic situation, the China government has repeatedly stressed that doing its own thing well is the greatest contribution to the world economy and global financial stability! If this statement represents the China government's far-reaching strategy of crisis management, then the State Council's recently announced 10 measures to expand domestic demand and its financial investment of 4 trillion yuan in the past two years are the "China cards" specially designed to overcome the global financial crisis-this is the heaviest gift that China brought to the G20 summit, and it is also a sincere expression of China government's hope that the summit will achieve substantive results. These measures to expand domestic demand not only release the more dangerous impact of the crisis than before, but also show that although China is playing an increasingly important role on the world stage, it is still in the position of a developing country. It is willing to cope with the crisis together with the developed industrial countries around it, undertake the responsibility of rescuing the market, and is confident to overcome the crisis.