Promote the development trend of global economy and trade. Adjust the surplus and deficiency of international assets. It is an important part of China's international reserves and an important means of payment to repay international debts. Foreign exchange investment refers to the foreign exchange investment method of buying one of a pair of currencies at the same time and selling the other currency. In foreign markets, the exchange rates of various currencies fluctuate frequently, and they are bought and sold in foreign exchange currencies, such as pounds, dollars and yen.

The key advantage of the foreign exchange investment sales market lies in its high definition, because the volume of transactions is huge, and the damage ability of the main fund allocation to the exchange rate changes in the sales market is very limited. On the other hand, from the perspective of the fundamentals of exchange rate fluctuations, it is generally the key data information released by government departments around the world, the speeches of senior government officials, or the information released by international economic organizations, which may be very harmful. The foreign exchange investment and sales market has no actual address, management center and trading center. All transactions are conducted between financial institutions according to the Internet. All financial enterprises, government departments or myself in the world can participate in the transaction 24 hours a day, anytime and anywhere. The foreign exchange trading market runs continuously for 24 hours, rising and falling, and never stops.

The Bank of Japan sells yen. The denominations of banknotes sold in Japan are10000,5000,1000,500,100,50,10,5,1 yuan, others are 500,100,50. China Chinese characters are used on the front of Japanese paper money, and the words "Japanese paper money" are in the middle, so there is no selling time for all kinds of paper money. The person in charge of the sales enterprise applies a seal, that is, the ticket is printed with a red seal of the chief executive and the seal of the distribution director.

Some of these factors are common in the foreign exchange market, such as the announcement of economic indicators, central bank meetings, floods, political events and government policies, but some of them are unique to the yen, because the Bank of Japan promotes low deposit and loan interest rates, and investors widely raise funds in yen and buy loans with higher bond interest rates. It is an investment way to raise capital assets with low-interest loans to obtain high loan interest income. However, when there are variables in all East Asian regions or financial systems, the yen will appreciate accordingly.