1. Generally speaking, the national printing of banknotes is adjusted according to the balance of domestic supply and demand. There are also international economic factors, and sometimes there are some political considerations. For example, some countries led by the United States, such as China, have put pressure on the RMB to increase in price in recent years. The gold reserve refers to the gold deposited by China in the World Bank. In foreign exchange transactions, especially between countries, gold must be delivered. At present, about 1, 7 1 countries (the earlier data may change) put gold in the World Bank. When trading, gold is usually delivered directly by World Bank personnel, which means that gold is transferred to another place. In fact, there will be no big change in the reserves, because all countries have foreign exchange reserves, and China is rich in foreign exchange reserves. While GDP refers to the gross national product, it is enough to read the text. The country prints new banknotes every year, and at the same time destroys some old banknotes. Old banknotes come from domestic banks. If we have been to the bank, we will find a phenomenon: when we deposit money, we usually take old banknotes, but when we can get money, we usually take new banknotes. At present, there are only four hard currencies: Euro, US Dollar, British Pound and Japanese Yen, which can be used internationally, but China's current RMB is only useful at home (due to the economic development of China, more and more countries have RMB exchange in their own banks), and China now implements foreign exchange control (partial control), so China people, especially students studying abroad, must declare and get approval before they can exchange a large amount of foreign currency they need. If you are in private, In fact, international circulation depends on international trade, with gains and losses. For example, when a national enterprise in China needs to buy a batch of machines from abroad, it must first buy them and then conduct foreign currency transactions. Of course, now more and more banks are used as credit intermediaries. Domestic circulation is mainly banks, because taxes and wages are actually realized through banks. 3. Finally, the issuance of new coins by the state is not only a means to make up for the destruction of old coins, but also a means of regulation. Issuing new currency will affect the price level, and when the circulation exceeds the demand, it will lead to the price increase, so that more paper money is actually equivalent to the original RMB (in fact, the RMB itself is only a currency symbol, and it has no value), so that the issuance of more paper money not only does not bring wealth, but is harmful. Therefore, in fact, printing Singapore dollars has nothing to do with increasing wages. The fact of increasing wages depends on the country's economic development, price level, the planned amount and distribution of taxes in that year, and the economic problems of the unit. Social relief is mostly funded by the state, and of course there are charities.