CBSE Class 12 Economics (Macroeconomics)
Chapter 1: National Income and Related Aggregates
20 Important Questions and Answers
As per CBSE 2026–27 Syllabus
1. What is National Income? Explain its significance.
Answer:
National Income refers to the total value of all final goods and services produced within a country during an accounting year, adjusted for depreciation and net factor income from abroad. It is generally measured as Net National Product at Factor Cost (NNPFC). National Income is important because it indicates the economic performance of a country. It helps the government formulate economic policies, compare growth rates across years, and assess living standards. Economists use national income data to study employment, production, and income distribution. It also assists businesses in making investment decisions and helps international organizations compare the economic progress of different nations.
2. Differentiate between Gross Domestic Product (GDP) and Gross National Product (GNP).
Answer:
GDP and GNP are important measures of national income. Gross Domestic Product (GDP) refers to the market value of all final goods and services produced within the domestic territory of a country during a year, irrespective of the producer’s nationality. Gross National Product (GNP), on the other hand, includes the income earned by the residents of a country both within and outside the domestic territory. The relationship between them is:
GNP = GDP + Net Factor Income from Abroad (NFIA).
If NFIA is positive, GNP exceeds GDP; if negative, GDP exceeds GNP. Both indicators are useful for measuring economic activity and growth.
3. What is meant by Net Factor Income from Abroad (NFIA)?
Answer:
Net Factor Income from Abroad (NFIA) refers to the difference between factor income earned by residents of a country from abroad and factor income earned by foreign residents within the domestic territory of that country. Factor income includes wages, rent, interest, and profit. NFIA can be positive, negative, or zero. It is added to domestic income to obtain national income. For example, if Indian residents earn more income from foreign countries than foreigners earn in India, NFIA will be positive. NFIA plays an important role in converting domestic aggregates such as GDP into national aggregates such as GNP and National Income.
4. Explain the concept of depreciation.
Answer:
Depreciation, also known as consumption of fixed capital, refers to the reduction in the value of fixed assets due to wear and tear, accidental damage, and obsolescence over time. Assets such as machinery, buildings, and equipment lose value as they are used in production. Depreciation is deducted from gross aggregates to obtain net aggregates. For example:
NDP = GDP – Depreciation
and
NNP = GNP – Depreciation.
It is an important concept because it reflects the actual addition to productive capacity during a year. Ignoring depreciation would overestimate the value of production and income generated in an economy.
5. What is Domestic Territory? Explain with examples.
Answer:
Domestic Territory refers to the geographical area under the economic control of a country’s government where people, goods, and capital move freely. It includes political boundaries, territorial waters, airspace, ships and aircraft operated by residents, and embassies located abroad. However, foreign embassies within the country are excluded from domestic territory. For example, an Indian airline operating in another country is considered part of India’s domestic territory, whereas the US Embassy in India is treated as part of the United States. Understanding domestic territory is essential for calculating domestic income aggregates such as GDP and NDP accurately.
6. Define Normal Residents. Why is the concept important?
Answer:
Normal residents are individuals or institutions that ordinarily reside in a country and have their center of economic interest there for a period of one year or more. Citizenship is not the basis for determining residency. For example, an Indian working abroad for several years may not be a normal resident of India, while a foreign company operating permanently in India may be considered a resident unit. The concept is important because national income accounts focus on income earned by residents rather than citizens. It helps distinguish national income aggregates from domestic income aggregates and ensures accurate measurement of economic activity.
7. Explain the expenditure method of measuring national income.
Answer:
The expenditure method measures national income by summing all expenditures incurred on final goods and services during an accounting year. It focuses on the demand side of the economy. The main components are private final consumption expenditure, government final consumption expenditure, gross domestic capital formation, and net exports (exports minus imports). The formula is:
GDPMP = C + I + G + (X – M).
This method avoids double counting by including only final expenditures. It is widely used because expenditure on final goods and services reflects the value of production generated within an economy during a given period.
8. What is Value Added? Why is it important?
Answer:
Value Added refers to the increase in the value of a product at each stage of production. It is calculated as:
Value Added = Value of Output – Intermediate Consumption.
For example, if a baker buys flour worth ₹200 and sells bread worth ₹500, the value added is ₹300. The concept is important because it prevents double counting in national income estimation. If the value of all transactions were added without deducting intermediate goods, the national income would be overstated. Therefore, economists sum the value added by all producing units to determine the total production in an economy accurately.
9. What is the problem of double counting? How can it be avoided?
Answer:
Double counting occurs when the value of intermediate goods is counted more than once while calculating national income. This leads to an overestimation of national income. For example, the value of wheat, flour, and bread may all be counted separately, even though flour contains the value of wheat and bread contains the value of flour. Double counting can be avoided by including only the value of final goods and services or by using the value-added method. These approaches ensure that each stage of production contributes only its additional value to national income calculations, resulting in accurate measurement.
10. Distinguish between Market Price and Factor Cost.
Answer:
Market Price is the price paid by consumers for goods and services, including indirect taxes and excluding subsidies. Factor Cost refers to the income received by factors of production such as labor, land, capital, and entrepreneurship. The relationship is:
Factor Cost = Market Price – Net Indirect Taxes.
Net Indirect Taxes are obtained by subtracting subsidies from indirect taxes. Market price reflects the consumer’s expenditure, whereas factor cost reflects producers’ earnings. Economists often use factor cost to measure national income because it directly represents the income earned by factors contributing to production.
11. What are Intermediate Goods?
Answer:
Intermediate goods are goods and services purchased by producers for further processing, resale, or use in the production of other goods and services within the same accounting year. Examples include raw materials such as cotton used in textile production and flour used for baking bread. These goods are not included separately in national income calculations because their value is already incorporated in the final product. Including them separately would result in double counting. Therefore, only final goods and services or the value added at each stage of production are considered while estimating national income accurately.
12. Explain Final Goods with examples.
Answer:
Final goods are goods and services purchased for final consumption, investment, or export purposes and are not intended for further processing during the accounting year. Examples include a television purchased by a household, a machine purchased by a factory for production, and goods exported to other countries. Final goods are included in national income calculations because they represent the ultimate output produced by the economy. Distinguishing final goods from intermediate goods is essential to avoid double counting. Only the value of final goods reflects the actual contribution of production activities to national income.
13. What is Gross Domestic Product at Market Price (GDPMP)?
Answer:
Gross Domestic Product at Market Price (GDPMP) is the total market value of all final goods and services produced within the domestic territory of a country during an accounting year before deducting depreciation. It includes indirect taxes and excludes subsidies. GDPMP is one of the most commonly used indicators of economic performance. It reflects the size and growth of an economy and helps policymakers analyze production trends. Since it measures output at market prices, it shows the actual expenditure incurred by consumers. GDPMP can be converted into other national income aggregates by making suitable adjustments.
14. Explain the income method of measuring national income.
Answer:
The income method calculates national income by summing all factor incomes earned by factors of production during an accounting year. These incomes include compensation of employees, rent, interest, and profit. Mixed income of self-employed persons is also included. The method focuses on the income generated from production activities. Transfer payments such as pensions and scholarships are excluded because they are not earned through productive services. The income method is particularly useful in sectors where reliable income records are available. It helps estimate the contribution of different factors of production to the economy’s overall income.
15. What is Mixed Income of Self-Employed?
Answer:
Mixed Income refers to the income earned by self-employed individuals where it is difficult to separate wages, rent, interest, and profit. Examples include shopkeepers, farmers, taxi drivers, and small business owners. Such individuals contribute their labor, capital, and entrepreneurship simultaneously to production activities. Since separate factor incomes cannot be identified, their earnings are treated as mixed income. This component is included in national income under the income method. Mixed income is particularly significant in developing countries where a large proportion of economic activity is carried out by self-employed individuals and small enterprises.
16. What are Transfer Payments? Why are they excluded from National Income?
Answer:
Transfer payments are payments received without providing any current productive service in return. Examples include pensions, unemployment allowances, scholarships, and old-age benefits. These payments merely transfer income from one group to another and do not contribute to current production. Since national income measures the value of goods and services produced during a year, transfer payments are excluded from its calculation. Including them would overstate national income because no corresponding output is generated. However, transfer payments may affect personal income and consumption levels within the economy.
17. Explain the Production Method of National Income Estimation.
Answer:
The production method, also known as the value-added method, measures national income by calculating the value added at each stage of production across all sectors of the economy. It involves estimating the value of output produced and subtracting the value of intermediate consumption. The sum of value added by all producers gives Gross Value Added (GVA). This method is widely used in agriculture, industry, and services. It helps avoid double counting because only the additional value created at each production stage is considered. Accurate records of output and intermediate inputs are essential for this method.
18. Differentiate between Gross and Net Aggregates.
Answer:
Gross aggregates include depreciation, whereas net aggregates exclude depreciation. For example, Gross Domestic Product (GDP) represents the total value of final goods and services produced before deducting depreciation. Net Domestic Product (NDP) is obtained after deducting depreciation from GDP. Similarly, Gross National Product (GNP) includes depreciation, while Net National Product (NNP) excludes it. Net aggregates provide a more realistic measure of income because they account for the loss in value of fixed assets during production. Therefore, economists often prefer net measures for analyzing the sustainable level of economic activity.
19. What are Net Indirect Taxes?
Answer:
Net Indirect Taxes (NIT) refer to the difference between indirect taxes and subsidies provided by the government. The formula is:
NIT = Indirect Taxes – Subsidies.
Indirect taxes include GST, excise duty, and customs duty, which increase the market price of goods and services. Subsidies reduce production costs and lower market prices. Net indirect taxes are used to convert factor cost into market price and vice versa. They play an important role in national income accounting because market prices paid by consumers differ from the income actually received by producers due to taxes and subsidies.
20. Why is National Income Accounting important?
Answer:
National Income Accounting is a systematic method of measuring economic activity and income generation in a country. It provides information about production, consumption, investment, and savings. Policymakers use national income data to formulate fiscal and monetary policies, monitor economic growth, and assess development objectives. It helps compare economic performance across years and among different countries. Businesses use national income statistics for planning and forecasting market demand. Researchers and economists analyze these data to understand trends in employment, inflation, and living standards. Thus, national income accounting serves as an essential tool for economic planning and decision-making.