The United States wants the dollar to be stable, raising interest rates and appreciating the dollar. The logic lies in: the interest rate increase of the US dollar means the increase of deposit interest and loan interest, then the funds in the market will flow back to the bank at this time, and the US dollar will appreciate when the US dollar in circulation decreases, but the currencies of a country can be exchanged. When the dollar appreciates, the currencies of other countries will depreciate.

For example, when there is no interest rate increase, 6 yuan RMB can be exchanged for 1 USD, but it may take 7 yuan RMB to exchange for 1 USD after the interest rate increase, which shows that the USD appreciates and the RMB depreciates.

The dollar interest rate is also called risk-free interest rate. If the United States enters the interest rate hike cycle, it will also lead to the outflow of funds from other countries to the United States. Because the fund is profit-seeking, it can have a certain income without risk, and investors are more willing to invest their funds in risk-free products. Therefore, after the outflow of funds, the currencies of other countries will be reduced, which is not conducive to the operation of the capital market, so it will have a certain negative effect on the stock market or economy of other countries.