How many sets of RMB have been issued? What is the basis for determining the circulation?

First of all, the current RMB is the fifth set of RMB, so so far, five sets of RMB have been issued. At present, China uses the fifth set of RMB, which was issued in 1999, so most of the post-80s and post-90s may have seen the third and fourth sets of RMB. The fourth set of RMB is red 1 yuan notes, and the fourth set of RMB includes 2 yuan and 20-cent notes, which are relatively rare. You can collect it when you meet it. The third set of RMB now. Integral? Among them, the circulation of trombone version 1 minute notes is also relatively small, which can be collected when encountered. The first and second sets of RMB are probably only seen by your parents, so you can only find some pictures from the Internet.

Secondly, there are many theories in economics that determine the demand for money. Money demand theory mainly includes Marx's money demand theory, Fisher's money demand theory, Keynes's money demand theory and Cambridge School's money demand theory. Every money demand theory has its own companies that determine the circulation of money, such as some in high school political courses? Economic life? In this part, we will study the theory of money demand in Marx's economics, and the formula that determines money circulation is the total price of goods for sale divided by the speed of money circulation; In college, if you enroll in the subject of economic management, you will definitely study western economics. In primary western economics, you will focus on Keynes's money demand theory, which has a money demand function, and you can calculate the actual or nominal money demand according to this function.

Furthermore, the IS-LM model in macroeconomics can also reflect the relationship between supply and demand of money. In addition, if you enroll in economic management major in university, you should not only learn all kinds of money demand theories, but also focus on the IS-LM model in macroeconomics. In this model, the money supply is generally given, not a formula used to calculate the money circulation, but this model can reflect the relationship between supply and demand in the money market, and can be used to analyze whether the central bank adopts fiscal policy or monetary policy. When doing economic calculations, the theory of money demand may be combined. The first step is to investigate the theory of money demand and let you calculate the currency circulation. The second step is to calculate the total output or interest rate with the IS-LM model according to the currency circulation calculated in the first step.

Finally, economics is a very theoretical and practical subject, and learning more about economics is also helpful to daily life. Economics is a wide and deep subject, so it is necessary to study it deeply. Moreover, it is a very theoretical and practical subject, which is very suitable for some students who are interested in reading and doing scientific research. But they didn't choose their major in economics in time. It is also helpful to know more about economics in their daily life. For example, what is lemon market, what is adverse selection and so on are both interesting and useful.