ICS FA ICom Notes Class XI Principles of Economics Methods of Calculating National Income and Difficulties in Calculating NI
If you want to view other notes of Economics Click Here.
Methods of Calculating National Income
To calculate national income the following three methods are generally used:
1. Net output Method or Production Method
For calculating national income under this method the net output or the production of various commodities is estimated and evaluated at the market prices. For this purpose we take two steps,
Firstly we estimate the monetary value of the commodities that are produced internally .The production or output of different sections of the economy i.e. agricultural, manufacturing, trade, commerce, transport etc is analyzed after deducting the depreciation charges.
Secondly; we consider the foreign business transactions that were performed during the financial year. In this regards in this regard we only consider the difference between exports and imports.
These two aggregate are then summoned up to get the gross domestic product which in turn is deducted from the total revenue earned to arrive at national income. In very simple words the contribution, which each enterprise makes to total output, is equal to its total revenue minus what is paid out to other enterprises and the depreciation of equipment used in the process of production. The production method is the most direct method for calculating national income. It s equation can be written as:
NATIONAL INCOME = G.N.P – COST OF CAPITAL – DEPRECIATION – INDIRECT TAXES
2. Income Method
Under this method the various factors of production are classified in a few broad categories. The incomes of various and sectors are obtained from there financial statements. Under this method the national income is also estimated by summing up the income that arrives to the factors of production provided by the national residents. Thus the rate at which the national income is distributed among the various factors of production is estimated. This method of calculating national income is quite complex. Usually the undeveloped countries where most of the people are not directly covered by direct taxation. Equation wise the method can represent national income as:
NATIONAL INCOMER = RENTAL INCOME + WAGES + INTEREST + PROFIT
3. Expenditure or outlay Method
This method gives national income by adding up all public and private expenditures made on goods and services during a year. It is obtained by:
- Personal consumption expenditure of goods and services.
- Gross domestic private investment.
- Government purchase of goods and services.
- Net Foreign investment.
It must however be recognized that it is the final expenditure only which must be counted and not the immediate expenditure.
Difficulties Faced while Calculating National Income
Some of the problems or the difficulties that are usually faced while calculating national income are as follows.
1. Problem of Definition
One of the greatest difficulties while calculating national income is that what should be included and what excluded with respect to the goods and services produced. As a general rule only those goods and services which are bought and sold i.e. enter into exchange must be only considered. For example the service of parents towards their children is not a part of national income on the ground that there is no investment of there market value. But allowances are made for some non-exchangeable goods and services e.g. the national product include the estimated value of food consume on farms. This creates a problem.
2. Calculation of Depreciation
Another problem is the calculation of depreciation. The main reason behind it is that both the amount and the composition of jour capital change from time to time. There are no standard or concept rules of depreciation that can be applied. Since depreciation is an estimate so correct deduction can be made until and unless these accurate depreciation estimates are not deducted from the estimate of net national product the net national income is bound to wrong.
3. Treatment of the Government
Government expenditures:
- Defiance and administration expenditure.
- Social welfare expenditure.
- Payment of interest on national debts
- Miscellaneous development expenditure.
The real problem that is faced relates to which of the above should be included in the national income.
4. Income from Foreign Firms
One of the major problem relates to the fact that weather the income arising from the activities of the foreign firms operating in a country should be included in the countries national income or not .With the growing trend of doing business globally has increased this problem to a great extant. However the I.M.F has given the viewpoint that the production and income of these foreign forms should go to the owning country while there profit must be credited to the parent concern.
5. Danger of Double Counting
Proper care is required for calculating national income so that double counting may not take place. This problem usually arises in those countries where proper documentation or statistics are not available.
6. Value of Inventories
Since it is not easy to calculate the value of raw materials, semi finished and finished goods in the custody of producers there fore it creates problems.
Post a Comment