National Income and Related Aggregates
Understand factor incomes vs. transfer incomes, the circular flow of income (real vs. money flows), basic economic activities, stock vs. flow, domestic territory vs. normal residents, value of output vs. value added, nominal vs. real GDP, and the 8 key national income aggregates.
1. Incomes, Economic Activities, Stock & Flow
Income earned by factors of production for rendering productive services. Included in National Income.
- Labour: Compensation of Employees (Wages/Salaries)
- Land: Rent
- Capital: Interest
- Entrepreneurship: Profit
Receipts without rendering any productive service in return (unilateral payments). EXCLUDED from National Income.
Examples: Gifts, donations, old-age pensions, scholarship, taxes, fines.
3 Interrelated Basic Economic Activities:
| Basis | Stock Concept | Flow Concept |
|---|---|---|
| Time Dimension | Measured at a specific point of time (No time dimension) | Measured over a period of time (days, months, years) |
| Examples | Wealth, Population, Money Supply, Capital Stock | National Income, GDP, Population Growth, Investment |
2. Circular Flow of Income & Economy Types
Flow of factor services from households to firms, and the corresponding flow of goods & services from firms back to households.
Flow of factor payments (rent, wages, interest, profit) from firms to households, and consumption expenditure from households back to firms.
A Closed Economy has no economic interactions (trade, lending, foreign investments) with the rest of the world. An Open Economy actively trades goods, services, and capital with the Rest of the World (ROW).
3. Domestic Territory & Normal Residents
- Political frontiers including territorial waters.
- Ships & aircraft operated by normal residents between countries (e.g. Air India flights).
- Fishing vessels, oil/gas rigs operated by residents in international waters.
- Embassies, consulates, military bases located abroad (e.g., Indian Embassy in Washington).
- Excludes: Foreign embassies/military bases located in India.
A person (or institution) who ordinarily resides in a country for more than one year and whose center of economic interest lies in that country.
Note: Includes both citizens and foreign nationals living in India for >1 year. Excludes foreign tourists, diplomats, and seasonal workers.
4. Intermediate vs. Final Goods, Value Added & Real GDP
Intermediate Goods: Used for reprocessing or resale in the same accounting year (e.g., milk used by a sweet maker). Excluded from GDP to avoid double counting.
Final Goods: Used for final consumption by households or investment by producers (e.g., milk consumed by a household). Included in GDP.
- Value of Output = Sales + Change in Stock
- Change in Stock = Closing Stock - Opening Stock
- Value Added = Value of Output - Intermediate Consumption
Nominal GDP (at Current Prices): Estimated using prevailing current year prices. Influenced by both price inflation and physical production.
Real GDP (at Constant Prices): Estimated using base-year constant prices. Reflects true physical increase in production.
5. The 8 Aggregates & Conversion Bridges
| Aggregate | Full Name | Formula / Definition |
|---|---|---|
| GDP_MP | Gross Domestic Product at MP | Money value of all final goods & services produced within domestic territory. |
| GDP_FC | Gross Domestic Product at FC | GDP_MP - Net Indirect Taxes (NIT) |
| NDP_MP | Net Domestic Product at MP | GDP_MP - Depreciation |
| NDP_FC | Net Domestic Product at FC | Sum of all factor incomes generated domestically (COE + Rent + Interest + Profit + Mixed Income). |
| NNP_FC | NATIONAL INCOME (NI) | NDP_FC + NFIA (Net Factor Income from Abroad) |
| GNP_MP | Gross National Product at MP | GDP_MP + NFIA |
| GNP_FC | Gross National Product at FC | NNP_FC + Depreciation |
| NNP_MP | Net National Product at MP | NNP_FC + NIT |