Learning Outcomes:
- Understand the components and significance of National Income.
- Differentiate between GDP, GNP, and other related aggregates.
- Identify methods for calculating National Income.
- Recognize the challenges in accurately estimating National Income.
- Explore the roles of CSO and NSSO in economic data collection.
National Income Overview
National Income is defined as the total net earnings from the production of goods and services in a country over a specific period, usually one year. It includes wages, salaries, rent, profits, and interest. It is considered as Net National Product (NNP) at factor cost and can be mathematically expressed as:
National Income = C + I + G + (X – M)
Where:
Key Related Aggregates
National Income can be measured using aggregates such as Gross National Product (GNP), Gross Domestic Product (GDP), Gross National Income (GNI), Net National Product (NNP), Net National Income (NNI), and Per Capita Income (PCI). These aggregates can be calculated at either factor cost or market price.
Gross Domestic Product (GDP)
GDP is the monetary value of all final goods and services produced within a country’s borders in a specific timeframe. Represented as:
GDP = C + I + G + NX, where NX = Net Exports (Exports – Imports).
Important Note: India periodically changes the base year for GDP calculation. The current base year is 2011-12, providing a more accurate reflection of economic conditions.
Gross National Product (GNP)
GNP represents the market value of all products and services produced by a country’s labour and property within a year, calculated as:
GNP = GDP + (Exports – Imports).
Net National Product (NNP)
NNP adjusts GNP by deducting depreciation of physical assets. Calculated as:
NNP = GNP – Depreciation.
National Income (NI)
NI is derived from NNP by adjusting for indirect taxes and subsidies:
NI = NNP – Indirect Taxes + Subsidies.
Important Note: Real National Income adjusts for inflation using a base year, providing a more accurate economic measure.
Per Capita Income (PCI)
This measures the average income per person in a specific area. Calculated as:
Per Capita Income = National Income / Population.
Methods of National Income Calculation
Three primary methods are used to calculate National Income:
Differences Between GDP and GNP
Challenges in National Income Calculation
Important Note: Double counting can be mitigated through the value-added approach but cannot be entirely eliminated.
Aspect | GDP | GNP |
---|---|---|
Definition | Goods/services produced within borders | Goods/services produced by nationals, including abroad |
Inclusion of Foreigners | Included | Excluded |
Inclusion of Nationals Abroad | Not included | Included |
Issues in National Income Estimation
Gross Fixed Capital Formation (GFCF)
GFCF represents the net addition to a country’s capital stock (e.g., equipment, buildings). It enables economic growth and is crucial for improving aggregate and per capita income. For sustained growth, high levels of domestic savings are essential. Calculated as:
National Income Trend in India
Between 2004-05 and 2010-11, India’s National Income grew at 8.4% (2004-05 prices). Revised GDP figures for 2018-19 showed a 6.6% growth at constant prices (2011-12 base year). Per capita income increased to ₹92,565 in 2018-19. However, India’s economic transformation is gradual due to slow growth in the manufacturing sector.
Important Note: As industrialization advances, improvements in industry and services sectors become more evident.
Sector | 2017-18 | 2018-19 |
---|---|---|
Agriculture, Forestry, and Fishing | 5.0% | 2.9% |
Mining and Quarrying | 5.1% | 1.3% |
Manufacturing | 5.9% | 6.9% |
Electricity, Gas, Water Supply, etc. | 8.6% | 7.0% |
Construction | 5.6% | 8.7% |
Trade, Hotels, Transport, Communication | 7.8% | 6.9% |
Financing, Real Estate, Professional Services | 6.2% | 7.4% |
Public Administration, Defence | 11.9% | 8.6% |
Key Organizations Related to National Income in India
Important Note: NSSO data is crucial for setting the poverty line and estimating regional disparities.
MCQ: Which of the following is a method used to calculate National Income?
Correct Answer: 4. All of the above