RMB exchange rate is related to money supply and demand. For example, if you want to change into dollars, there will be exchange rate problems. The exchange rate is determined by the supply and demand of RMB and USD. If there is a large demand for dollars, it will be valuable, while the RMB will depreciate, the dollar will be worthless and the RMB will appreciate relatively.
The RMB exchange rate and deposit reserve ratio are determined by the market and the government. The so-called exchange rate is the value ratio of RMB to another currency. Generally speaking, when foreign people have a high demand for RMB (everyone wants to buy goods from China and export them in large quantities), the exchange rate will rise (that is, the RMB will appreciate); On the contrary, it will fall. However, when exports reach a certain level, the exchange rate will continue to rise, and the appreciation of the renminbi will lead to an increase in the price of export commodities, and then exports will decrease, imports will increase, and then the exchange rate will fall. Of course, the government can also adjust through macro means.
The reserve ratio is the departmental deposit reserved by the bank when it receives the deposit for depositors to withdraw; For example, if 100 yuan is deposited in the bank, the bank cannot lend all of this 100 yuan, so it is necessary to leave 20 yuan for depositors to withdraw. Then the reserve ratio is 20%. At this time, the country needs more money to stimulate the market, which will reduce the reserve ratio; On the contrary, it is improved.