Economic and Business Environment · Indian Economy

National Income and Economic Growth Indicators for CSEET

Updated 11 October 2026 · Fact-checked

National income is the total value of goods and services produced by a country's residents in a year. GDP counts production within the country's borders. GNP adds net factor income from abroad. To solve questions, identify the measure, apply its formula, and keep market price and factor cost separate.

Understand National Income and Economic Growth Indicators

National income measures the value of all final goods and services a country produces in a year. It tells you how big the economy is and whether it is growing.

GDP (Gross Domestic Product) is the value of all final goods and services produced inside the domestic territory of a country in a year. It does not matter who produces them. A car made in India by a foreign company counts in India's GDP. GNP (Gross National Product) counts what the normal residents of a country produce, wherever they produce it. So GNP = GDP + net factor income from abroad (NFIA). NFIA is income earned by residents abroad minus income earned by foreigners in India.

Gross means before deducting depreciation (consumption of fixed capital). Net means after deducting it. Market price includes indirect taxes and excludes subsidies. Factor cost is what factors of production actually earn, so you subtract net indirect taxes to reach it. Net National Product at factor cost (NNP at FC) is also called national income.

Per capita income is national income divided by population. It gives the average income per person. It does not show how income is shared, so it can hide inequality.

Economic growth is a rise in real output or real income over time, usually measured as the percentage change in real GDP. Economic development is wider. It includes better health, education, living standards and reduced poverty along with growth. Growth is a quantitative change. Development is quantitative and qualitative. Real GDP is measured at constant prices, so it removes the effect of price rise. Nominal GDP is at current prices.

Key rules to remember

GNP from GDP: GNP at market price = GDP at market price + NFIA; NFIA = factor income from abroad − factor income paid to foreigners. It can be negative.
Net product: NDP = GDP − Depreciation; NNP = GNP − Depreciation; Depreciation is also called consumption of fixed capital.
Market price to factor cost: Value at factor cost = Value at market price − Net indirect taxes; Net indirect taxes = indirect taxes − subsidies.
National income: National income = NNP at factor cost = GNP at MP − Depreciation − Net indirect taxes; Use this chain to move between measures.
Per capita income: Per capita income = National income ÷ Population; Use the same year and units for both.
Growth rate: Growth rate (%) = (Real GDP this year − Real GDP last year) ÷ Real GDP last year × 100; Use real GDP, not nominal GDP.
Real GDP: Real GDP = Nominal GDP ÷ Price index × 100; Base year price index is 100.
Expenditure method: GDP = C + I + G + (X − M); C consumption, I investment, G government spending, X exports, M imports.

How to solve National Income and Economic Growth Indicators questions

Use this method for definition, difference and numerical questions on national income and growth.

1Read the question and name the measure asked: GDP, GNP, NNP, national income or per capita income.
2Note the price basis: market price or factor cost. Note whether it is gross or net.
3List the given items and mark which are additions (NFIA, subsidies) and which are deductions (depreciation, indirect taxes).
4Write the correct formula before putting in numbers.
5Move step by step along the chain: GDP, GNP, NNP, then factor cost. Do not skip a step.
6Check the units and sign of NFIA. Negative NFIA reduces GNP.
7For growth questions, use real values and the percentage change formula.
8For written answers, give the definition first, then the formula or points of difference, then a short India example.

Quickest way: The conversion ladder

When to use it: Use it for numerical questions that give several items and ask for one measure.

Start at GDP at market price.
Add NFIA to reach GNP at market price.
Subtract depreciation to reach NNP at market price.
Subtract net indirect taxes to reach NNP at factor cost, which is national income.
To go the other way, reverse each sign.
For MCQs, check only the words gross, net, domestic, national, market and factor, and apply the matching step.

Common mistakes in National Income and Economic Growth Indicators

Saying GDP counts only Indian-owned firms.
Students mix up domestic with national.
Fix: GDP is about location of production. GNP is about ownership by residents.
Subtracting NFIA instead of adding it to GDP to get GNP.
The sign of NFIA is forgotten.
Fix: GNP = GDP + NFIA. If NFIA is negative, GNP is smaller than GDP.
Adding subsidies when moving from market price to factor cost.
Net indirect taxes are not understood.
Fix: Factor cost = market price − indirect taxes + subsidies, which equals market price − net indirect taxes.
Using nominal GDP to show growth.
Price rise looks like output rise.
Fix: Use real GDP at constant prices for growth rates.
Treating growth and development as the same.
Both are described as progress.
Fix: Growth is rise in output. Development adds health, education, poverty reduction and quality of life.
Believing high per capita income means equal income for all.
It is an average.
Fix: State that per capita income ignores distribution, so inequality can remain.

Worked examples

Example 1

GDP at market price is ₹200 lakh crore. Net factor income from abroad is −₹4 lakh crore. Depreciation is ₹20 lakh crore and net indirect taxes are ₹16 lakh crore. Find GNP at market price and national income.

Show the solution

GNP at MP = GDP at MP + NFIA = 200 + (−4) = ₹196 lakh crore.
NNP at MP = GNP − depreciation = 196 − 20 = ₹176 lakh crore.
NNP at FC = NNP at MP − net indirect taxes = 176 − 16 = ₹160 lakh crore.
NNP at FC is national income.

Answer: GNP at market price is ₹196 lakh crore and national income is ₹160 lakh crore.

Example 2

Real GDP of a country was ₹150 lakh crore last year and ₹160.5 lakh crore this year. National income is ₹120 lakh crore and population is 120 crore. Find the growth rate and per capita income, and state whether this shows development.

Show the solution

Growth rate = (160.5 − 150) ÷ 150 × 100 = 10.5 ÷ 150 × 100 = 7%.
Per capita income = 120 lakh crore ÷ 120 crore. Convert: 120 lakh crore = 120 × 1,00,000 crore = 1,20,00,000 crore.
Divide: 1,20,00,000 ÷ 120 = 1,00,000, so per capita income is ₹1,00,000 per person.
Development needs more than growth. Health, education and poverty data are also required, so these figures alone do not prove development.

Answer: Growth rate is 7% and per capita income is ₹1,00,000. These show growth, but not development on their own.

Exam tips

Learn the difference between GDP and GNP in two lines, as it is asked often. Use the words territory and residents.
In numerical questions, write the formula first. Method marks are given even if arithmetic slips.
In a descriptive answer on growth versus development, give four or five points in pairs, such as meaning, scope, measure and nature.
Always state whether a figure is at market price or factor cost. Many MCQs hinge on this.
Add one India line, for example that India's GDP is usually higher than GNP because NFIA is typically negative, only if you are sure of the context given.

Practice questions from Indian Economy

National Income and Economic Growth Indicators: frequently asked questions

What is the main difference between GDP and GNP?

GDP counts output produced within a country's borders, whoever owns the producers. GNP counts output of the country's residents, wherever they produce. GNP = GDP + net factor income from abroad.

What is the difference between economic growth and economic development?

Growth is a rise in real output or income, shown by real GDP. Development is wider and includes better health, education, living standards and lower poverty. Growth can happen without development.

Which method is used to calculate national income?

There are three methods: the product or value-added method, the income method and the expenditure method. All should give the same value in theory. The method used depends on available data.

Is national income the same as GDP?

No. National income is NNP at factor cost. You reach it from GDP by adding NFIA, subtracting depreciation and subtracting net indirect taxes.