Class 12 Macroeconomics Sandeep Garg Solutions Chapter 3 - National Income and Related Aggregate
FAQs on Class 12 Macroeconomics: Chapter 3 Solutions by Sandeep Garg
1. Where can I find clear, step-by-step solutions for the unsolved practical problems in Sandeep Garg's Class 12 Macroeconomics Chapter 3?
This page provides comprehensive, step-by-step solutions for all the unsolved practical problems in Chapter 3, 'National Income and Related Aggregates,' from the Sandeep Garg textbook. Each solution is worked out clearly to help you understand the application of formulas and concepts for the 2025-26 CBSE session.
2. How do the solutions for this chapter explain the concept of 'double counting' in National Income calculation?
The solutions explain that double counting is the error of counting the value of a commodity more than once when estimating national income. This leads to an overestimation. The solved problems demonstrate two primary methods to avoid this:
- Final Output Method: Considering only the value of final goods and services, not intermediate goods.
- Value Added Method: Summing up the value added at each stage of production.
For a different perspective, you can also check the Revision Notes on National Income Accounting.
3. Why is it crucial to differentiate between 'stock' and 'flow' variables when solving problems on National Income?
It is crucial because National Income itself is a flow variable, measured over a period of time (e.g., a year). The solutions clarify this by example. Variables like capital, wealth, and money supply are stock variables, measured at a single point in time. Confusing the two can lead to incorrect calculations and conceptual errors, for instance, mixing up 'capital' (a stock) with 'investment' (a flow).
4. How do the solutions demonstrate the calculation to get National Product from Domestic Product?
The solutions show that the key difference lies in the Net Factor Income from Abroad (NFIA). Domestic Product measures the total value produced within a country's geographic boundaries. To find the National Product (income earned by a country's residents), you must adjust the Domestic Product. The formula used is:
National Product = Domestic Product + Net Factor Income from Abroad (NFIA).
NFIA is the difference between factor income received from the rest of the world and factor income paid to the rest of the world.
5. What are the key aggregates of National Income covered in the Sandeep Garg Chapter 3 solutions?
The solutions for Chapter 3 cover all major aggregates related to National Income as per the CBSE syllabus. You will find detailed calculations for:
- Gross Domestic Product (GDP) at Market Price and Factor Cost
- Net Domestic Product (NDP) at Market Price and Factor Cost
- Gross National Product (GNP) at Market Price and Factor Cost
- Net National Product (NNP) at Market Price and Factor Cost (which is also National Income)
Practising these solutions helps in understanding the adjustments for depreciation and net indirect taxes.
6. How do the solved examples in this chapter help distinguish between Real and Nominal GDP? What is the significance?
The solved examples illustrate that Nominal GDP is calculated using current year prices, while Real GDP is calculated using constant base-year prices. The significance, as highlighted through numerical problems, is that Real GDP is a true indicator of a country's economic growth because it reflects the change in the actual output of goods and services, eliminating the distorting effect of price changes (inflation).
7. Why are transfer payments like pensions and scholarships excluded when calculating National Income in the practical problems?
Transfer payments are excluded because they are unilateral payments for which no corresponding goods or services are produced in the current year. National Income measures the income generated from productive activities only. Including transfer payments would lead to an overestimation of the actual production in the economy. The solutions to practical problems consistently apply this principle, helping reinforce the concept. For more practice, refer to the Sandeep Garg Macroeconomics Chapter 4 Solutions on measuring national income.
8. What are the three main methods for calculating National Income demonstrated in Sandeep Garg's Chapter 3 solutions?
The solutions provide detailed, step-by-step guidance on all three methods of calculating National Income:
- Value Added Method (or Product Method): Sums the gross value added by all producing enterprises within the economy.
- Income Method: Sums all factor incomes (rent, wages, interest, profit) earned within the domestic territory.
- Expenditure Method: Sums the final expenditure incurred on goods and services produced in the economy.
9. How do the concepts in Sandeep Garg's Chapter 3 solutions relate to the official NCERT syllabus for National Income Accounting?
The concepts and problems in Sandeep Garg's Chapter 3 align directly with the CBSE curriculum for 'National Income and Related Aggregates,' which is detailed in Chapter 2 of the NCERT Macroeconomics textbook. Both cover core topics like the circular flow of income, GDP, NNP, and the methods of calculation. Using these solutions complements the NCERT Solutions for Class 12 Macro Economics Chapter 2, providing more practice problems to master the subject.






















