NCERT Solutions Class 12, Economics, Introductory Macroeconomics, Chapter- 3, Money and Banking
1. What is a barter system? What are its drawbacks?
Solution:
Barter system is a system of exchange commodity for commodity. It was used during the ancient times. In other words, this system was often used to exchange one commodity against another before the existence of monetary system. For example, if a person is having rice and he wants tea, then he can exchange rice with a person who already has tea and wants rice. The economy having the barter system was termed as ‘C-C economy’, i.e., commodity is exchanged for commodity.
The various drawbacks of the barter system are mentioned below:
(i) Problem of double coincidence of wants: Double coincidence of wants refers to a situation, wherein needs of two individuals should complement each other in order to let the exchange take place. For example, in the aforesaid case, the second person must be in need of rice in exchange of tea.
(ii) Lack of common unit of value: Under barter system, there wasn’t any common unit for measuring the value of one good in terms of another good for the purpose of exchange. For example, a horse cannot be measured in terms of rice, in the case of exchange between rice and horse.
(iii) Difficulty in wealth storage: It was extremely difficult to store the commodities for future exchange purposes. The perishable goods like grains, milk and meat could not be stored to exchange the goods in future.
Therefore, wealth storage was an unvoidable difficulty of barter system.
(iv) Lack of standard of deferred payments: The future payments were impossible to be met in a C-C economy (barter system) as wealth could not be stored. Likewise, it was equally difficult to pay back the loans.
2. What are the main functions of money? How does money overcome the shortcomings of a barter system?
Solution:
The main functions of money are as follows:
(i) Medium of exchange: Money acts as a medium of exchange because it facilitates the exchange through a common medium, which is termed as currency. In other words, money facilitates buying and selling of goods. For example, a person can sell his goods to another in exchange of money and that person can utilise money to purchase goods of his own choice. Hence, Money solves the problem of double coincidence of wants.
(ii) Unit of value: The value of goods can be easily measured in terms of money. It is a common medium on the basis of which we can calculate the value of each and every good. The value of a good in terms of money is known as the price. In barter system, there was no common denomination for measuring values of goods and hence became a drawback.
(iii) Store of value: This function elaborates the importance of money as value storage. This means that wealth in the form of money can be easily stored as a medium of exchange for future use. For example, money can be stored in banks for meeting emergency and future needs and contingencies.
(iv) Standard of deferred payments: Payments can be easily made through the money as a common medium. In other words, it is very difficult to repay the loan in terms of goods and services. However, with the help of money the payments of loans or interests can be made with ease.
Money overcomes the shortcomings of barter system in the following manner:
(i) Money has resolved the problem of double coincidence of wants. For example, if a person is in need of wheat in exchange of tea, then he/she must look for a person who is ready to trade wheat for tea. Money made the need for such searches redundant.
(ii) In barter system, it was almost impossible to measure the value of one good in terms of another. For example, it is difficult to calculate the value of a horse in terms of rice.
(iii) It was not at all easy to store goods, especially perishable goods (fruits, meat, etc.) for the purpose of value storage. Money has resolved this purpose.
(iv) The contractual or future payments were very difficult to be made in barter system. For example, a worker working on contractual basis could not be paid in terms of rice or chairs.
3. What is transaction demand for money? How is it related to the value of transactions over a specified period of time?
Solution:
Transaction demand for money refers to the need of money for meeting day to day transactional needs. As money is a liquid asset (easily acceptable or exchangeable), that’s why everyone has the tendency to hold money. People earn incomes at different points of time but usually consume throughout the entire period. So, people tend to hold the money for transaction purposes.
The relationship between the value of transactions and transaction demand for money can be explained as follows:
The transaction demand for money in an economy
\((M \frac dt)\) can be written as:
\((M \frac dt) = K.T\)
or \(\frac 1k . (M \frac dt) = T\)
or \(v. M\frac dt = T\)
Where, v = 1/k, represents velocity of circulation of money
T = Total value of transactions in the economy over a period of time
k is a positive fraction
MTd = Stock of money people are willing to hold at a particular point of time.
The transaction demand for money is said to be positively related to the total value of transactions and negatively related to the velocity with which money is circulated.
4. What are the alternative definitions of money supply in India?
Solution:
The various definitions of money supply in India as prescribed by RBI are M1, M2, M3 and M4.
M1, M2, M3 and M4 are arranged in the descending order of liquidity. In other words, in these components of money supply, M1 is considered to be the most important measure as it is regarded as most liquid assets.
So,
M1 = C + DD + OD
Where,
C = Currency held by public
DD = Net demand deposits of the bank
OD = Other deposits held by RBI
M2 = M1 + Savings of the people with Post offices (M2 consists of the components of M1 as well as the savings of people with Post office.)
M3 = M1 + Net time deposits with commercial banks (M3 is the most widely used measure of money supply. It includes the components of M1 and net time deposits of commercial banks.)
M4 = M3 + Total deposits with post offices (excluding National Saving certificate)
All these definitions of money supply in India are represented in the flow chart given below.
