CBSE Class 12 Macroeconomics Revision Notes Chapter 2 National Income Accounting

National Income Accounting explains how the total income, output and expenditure of an economy are measured during an accounting year. In CBSE Class 12 Macroeconomics, this chapter covers basic concepts, circular flow, national income aggregates, calculation methods, GDP deflator and welfare limits.

National Income Accounting is one of the most important chapters in Class 12 Macroeconomics. It explains how an economy measures the value of final goods and services produced in a year. It also helps students understand GDP, GNP, NDP, NNP, domestic income, national income, real GDP, nominal GDP and the limitations of GDP as a welfare measure.

These CBSE Class 12 Macroeconomics Revision Notes Chapter 2 are designed for quick and structured revision. Students can use them to revise definitions, formulas, differences and calculation methods before board exams.

Key Takeaways

• National Income Accounting: Measures production, income and expenditure in an economy during an accounting year.
• Final goods: Included in national income because they are ready for final use.
• Intermediate goods: Excluded to avoid double counting.
• Three methods: Product method, income method and expenditure method are used to calculate national income.

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National Income Accounting Class 12 Notes: Chapter Overview

National Income Accounting studies the flow of production, income and expenditure in an economy. It gives a quantitative measure of the economic activity of a country.

The chapter builds the foundation for later topics in Macroeconomics.

Meaning of National Income Accounting

National Income Accounting is a set of methods used to measure the value of final goods and services produced in an economy during a year.

It helps answer questions such as:

In simple terms, national income shows the money value of the production done by an economy in an accounting year.

Basic Concepts of Macroeconomics

Before studying national income, students should understand a few basic terms used throughout the chapter.

These terms are frequently used in formulas and numericals.

Goods in National Income Accounting

Goods are products and services that satisfy human wants and have economic value.

In national income, goods are classified based on how they are used.

The same good can be final or intermediate depending on its use.

For example, milk bought by a household is a final good. Milk used by a sweet shop to make sweets is an intermediate good.

Final Goods and Intermediate Goods

The distinction between final and intermediate goods is very important because only final goods are counted in national income.

Intermediate goods are excluded to avoid double counting.

Consumption Goods and Capital Goods

Final goods are of two types: consumption goods and capital goods.

Capital goods are final goods because they are not transformed during the production process. They help produce other goods over several production cycles.

Consumer Durables

Consumer durables are consumption goods that last for a long period.

They are not capital goods because they are used by consumers, not by firms for production.

Investment in Class 12 Macroeconomics Chapter 2 Notes

Investment means addition to the stock of capital. It is different from the everyday meaning of investment, such as buying shares or property.

In economics, investment means capital formation.

Investment Formula

Net Investment = Gross Investment − Depreciation

If gross investment is higher than depreciation, capital stock increases. If gross investment only replaces worn-out capital, net investment may be zero.

Depreciation

Depreciation means loss in value of capital goods due to normal wear and tear, regular use or ageing.

Depreciation does not include sudden loss due to accidents, natural disasters or unexpected damage.

Stock and Flow Variables

Stock and flow are important concepts in macroeconomics.

National income is a flow because it is measured over an accounting year.

Circular Flow of Income

Circular flow of income shows the continuous movement of income, output and expenditure between sectors of an economy.

In a simple two-sector economy, there are households and firms.

Households provide land, labour, capital and entrepreneurship to firms. Firms pay rent, wages, interest and profit to households. Households use this income to buy goods and services produced by firms.

Circular Flow in a Two-Sector Economy

In this simple model, there is no government, no foreign trade and no savings. Therefore, income received by households returns to firms as consumption expenditure.

Leakages and Injections

In a more realistic economy, the circular flow is affected by leakages and injections.

Leakages reduce income flow, while injections increase income flow.

Domestic Territory

Domestic territory refers to the geographical territory administered by a government within which people, goods and capital can move freely.

Domestic territory is important for calculating domestic income.

Normal Resident of a Country

A normal resident is a person or institution that normally resides in a country and has its centre of economic interest in that country.

Normal residents are important for calculating national income.

Domestic Income and National Income

Domestic income and national income are different.

National Income = Domestic Income + Net Factor Income from Abroad

Net Factor Income from Abroad or NFIA

NFIA is the difference between factor income earned from abroad and factor income paid to abroad.

NFIA = Factor Income from Abroad − Factor Income to Abroad

NFIA connects domestic aggregates with national aggregates.

National Income Aggregates

National income aggregates are different measures used to calculate output and income.

NNPFC is also called National Income.

GDPMP

Gross Domestic Product at Market Price is the money value of all final goods and services produced within the domestic territory of a country during an accounting year, valued at market price.

GDPMP is a domestic and gross aggregate measured at market prices.

GDPFC

Gross Domestic Product at Factor Cost is the value of final goods and services produced within domestic territory, measured at factor cost.

GDPFC = GDPMP − Net Indirect Taxes

Net Indirect Taxes = Indirect Taxes − Subsidies

NDPMP

Net Domestic Product at Market Price is GDPMP after deducting depreciation.

NDPMP = GDPMP − Depreciation

NDPFC or Domestic Income

NDPFC is the net value added at factor cost within the domestic territory of a country.

NDPFC = NDPMP − Net Indirect Taxes

NDPFC is also called Domestic Income.

It includes factor incomes generated within domestic territory.

NNPFC or National Income

NNPFC is the sum of factor incomes earned by normal residents of a country during an accounting year.

NNPFC = NDPFC + NFIA

NNPFC is called National Income.

GNPMP

Gross National Product at Market Price is the market value of final goods and services produced by normal residents of a country during an accounting year.

GNPMP = GDPMP + NFIA

It includes production by residents both within the domestic territory and abroad.

NNPMP

Net National Product at Market Price is GNPMP after deducting depreciation.

NNPMP = GNPMP − Depreciation

It can also be calculated as:

NNPMP = NNPFC + Net Indirect Taxes

Market Price and Factor Cost

Market price is the price paid by buyers. Factor cost is the payment received by factors of production.

Net Indirect Taxes = Indirect Taxes − Subsidies

Basic Price

Basic price is the amount received by the producer from the buyer for a unit of output, excluding product taxes and including product subsidies.

Basic Price = Factor Cost + Production Taxes − Production Subsidies

Market Price = Basic Price + Product Taxes − Product Subsidies

Gross and Net Aggregates

Gross aggregates include depreciation. Net aggregates exclude depreciation.

Net = Gross − Depreciation

Domestic and National Aggregates

Domestic aggregates are based on domestic territory. National aggregates are based on normal residents.

National = Domestic + NFIA

Market Price and Factor Cost Aggregates

Aggregates at market price include net indirect taxes. Aggregates at factor cost exclude net indirect taxes.

Factor Cost = Market Price − Net Indirect Taxes

Market Price = Factor Cost + Net Indirect Taxes

National Income Conversion Formulas

Use these formulas to convert one aggregate into another.

These conversion rules are useful for board exam numericals.

Methods of Calculating National Income

There are three main methods of calculating national income.

All three methods should give the same result if calculated correctly.

Product Method or Value Added Method

Product method calculates national income by adding value added by all producing units.

Value Added = Value of Output − Intermediate Consumption

This method avoids double counting by counting only value added at each stage.

Steps in Product Method

Value of Output

Value of output is the market value of goods and services produced by an enterprise during an accounting year.

Value of Output = Sales + Change in Stock

Change in Stock = Closing Stock − Opening Stock

Income Method

Income method calculates national income by adding factor incomes earned by owners of factors of production.

Income method is also called the factor payment method.

Components of Income Method

NDPFC = Compensation of Employees + Operating Surplus + Mixed Income

National Income = NDPFC + NFIA

Operating Surplus

Operating surplus is the income earned from property and entrepreneurship.

Profit includes corporate tax, dividend and undistributed profit.

Mixed Income

Mixed income is the income of self-employed people such as shopkeepers, farmers, doctors and small business owners.

It is called mixed income because it includes income from labour, capital, land and entrepreneurship, but these components cannot be separated clearly.

Expenditure Method

Expenditure method calculates national income by adding final expenditure on goods and services produced in the economy.

GDPMP = C + I + G + (X − M)

This method focuses on who buys the final goods and services.

Components of Expenditure Method

Expenditure on intermediate goods is not included.

Problem of Double Counting

Double counting means counting the value of the same good more than once while calculating national income.

It happens when intermediate goods are counted along with final goods.

If all three values are added, the value of wheat is counted more than once. The correct method is to count the value of final bread or only value added at each stage.

Methods to Avoid Double Counting

This is a high-scoring concept in National Income Accounting.

Real GDP and Nominal GDP

GDP can be measured at current prices or constant prices.

Real GDP is a better indicator of economic growth because it removes the effect of price changes.

GDP Deflator

GDP deflator measures the change in price level of all final goods and services included in GDP.

GDP Deflator = (Nominal GDP ÷ Real GDP) × 100

GDP deflator helps convert nominal GDP into real GDP.

CPI and WPI

Price indices measure changes in the general level of prices.

CPI is commonly used to understand changes in consumer cost of living.

GDP and Welfare

GDP measures the value of final goods and services produced in an economy. Higher GDP usually means more availability of goods and services, but it does not always mean higher welfare.

GDP is an important indicator, but it is not a complete measure of social welfare.

Limitations of GDP as a Welfare Indicator

Students should remember that GDP measures economic output, not total well-being.

Private Income, Personal Income and Disposable Income

These income concepts help explain how national income reaches households.

Personal Disposable Income = Personal Income − Personal Taxes

Disposable income can be used for consumption and saving.

Transfer Payments

Transfer payments are payments received without providing goods or services in return.

Transfer payments are not included in national income because they do not result from current production.

Quick Formula Table for Chapter 2

Important Differences in National Income Accounting

Final Goods and Intermediate Goods

GDP and GNP

Gross and Net

Real GDP and Nominal GDP

Common Mistakes Students Should Avoid

NCERT-Based Exam Points

• National Income Accounting measures aggregate economic activity.
• Final goods are included in national income.
• Intermediate goods are excluded to avoid double counting.
• The same good can be final or intermediate depending on its use.
• Capital goods are final goods used in production.
• Investment means addition to capital stock.
• Net Investment = Gross Investment − Depreciation.
• Depreciation is consumption of fixed capital.
• Stock is measured at a point of time.
• Flow is measured over a period of time.
• National income is a flow variable.
• Circular flow shows income, output and expenditure moving across sectors.
• In a two-sector economy, households and firms are the two sectors.
• Leakages include savings, taxes and imports.
• Injections include investment, government spending and exports.
• Domestic territory is the area administered by a government.
• Normal residents have their centre of economic interest in a country.
• Domestic income is based on domestic territory.
• National income is based on normal residents.
• NFIA connects domestic and national aggregates.
• GDP is domestic, GNP is national.
• Gross includes depreciation, net excludes depreciation.
• Market price includes net indirect taxes.
• Factor cost excludes net indirect taxes.
• NNPFC is called National Income.
• Product method calculates value added.
• Income method adds factor incomes.
• Expenditure method adds final expenditure.
• Double counting overstates national income.
• Real GDP is measured at constant prices.
• Nominal GDP is measured at current prices.
• GDP deflator compares nominal GDP and real GDP.
• GDP is not a complete measure of welfare.

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