Causes of the US financial crisis: This financial crisis was actually caused by the subprime mortgage crisis. In layman's terms, the subprime mortgage crisis means that banks provide loans to people who are not qualified to repay the loans to buy houses. When house prices rise, even if the lender is not qualified, you can sell your house to cash out or mortgage your house to get a new loan to pay the interest. However, house prices cannot rise indefinitely. When house prices begin to fall, lenders cannot obtain new loans, or they cannot repay the loan even if they sell the house. They can only dump the house that was bought at a high price and continues to fall in price to the lending bank. And the bank won't be able to recover the original loan even after the house was auctioned, which resulted in bad debts for the bank. The subprime mortgage crisis erupted when bad debt became widespread. For a detailed subprime mortgage crisis model, please refer to /view/1092871.htm?fr=ala0_1_1. The general view is that the cause of the subprime mortgage crisis is the lack of supervision by U.S. financial institutions, which package junk assets into high-quality assets and sell them to investors. When the junk assets reveal their true colors (specifically, the housing lenders cannot repay the loans), investment People's investment will be wiped out. However, some Americans believe that the root cause of the subprime mortgage crisis is the high savings rate in China and other countries. They believe that the Chinese only save money but do not spend it, and they lend all the money to Americans, causing the United States to be flooded with cash and forced to invest in bad investments. Assets (because good assets have been invested). . . . . .

At first, the impact of the financial crisis was only on the virtual economy, such as the bond market, stock market, etc. But it soon spread to the real economy, because investor confidence and investment capabilities were hit, resulting in the real economy not receiving enough funds.

The main impact on China is the decline in exports. According to a report from the General Administration of Customs of China, since November 2008, China's monthly foreign trade volume has shown a clear downward trend compared with the same period last year. In the first seven months of 2009, my country's foreign trade export situation was not optimistic. From January to July, my country's foreign trade export volume fell by 17.6%, 25.8%, 17.2%, 22.8%, 26.5%, 21.3%, and 23.0% respectively compared with last year.

Why Obama wants to sell national debt: Selling national debt is mainly to raise money. The first is to pay for the bad debts owed by investment banks. If you read the link I gave above, you will know that investment banks owe multiple debts. A owes B, B owes C, and C owes D. . . . . If one person fails to pay his debts, everyone will go bankrupt. So the U.S. government has no choice but to repay everyone’s debts. The second is to use government investment to stimulate economic growth, just like China's 4 trillion investment in 2009.

China buys US Treasury bonds. What will the money be used for: China currently holds more than 800 billion U.S. Treasury bonds. The first reason for buying so many U.S. Treasury bonds is for investment purposes, because the U.S. dollar has been strong in the past few years and is a good investment product. Moreover, international trade settlements are also conducted in U.S. dollars. The more U.S. dollars in hand, the stronger the purchasing power. Secondly, from the perspective of national security, buying U.S. Treasury bonds is quite tied to the U.S. economy. If a dispute occurs, China will sell a large amount of U.S. dollars. , will cause the dollar to depreciate, seriously harming the U.S. economy - and of course hurting the Chinese economy; thirdly, in China, people are not willing to consume but are more willing to save. If they do not consume what they produce, they cannot sell it, and the economy will not be able to sell it. cannot grow, and Americans are more willing to consume than save, so China has no choice but to lend money to the United States, and then the Americans buy Chinese products to help China consume.

Why not invest in the United States. Build your own brand: It is not that China is unwilling to invest, but that the United States is restricting Chinese investment. CNOOC's plan to buy Unocal (the ninth largest oil company in the United States) was rejected by the US government. As for other high-tech manufacturing companies, don’t even think about it. U.S. agriculture welcomes Chinese investment, but who will go there?