GDP vs GNP: National Income Accounting for CA Foundation
GDP and GNP are the two most important national income aggregates in macroeconomics. One focuses on territory; the other on nationality. A classic CA Foundation Economics concept.
head-to-Head Comparison
| Basis | Gross Domestic Product (GDP) | Gross National Product (GNP) |
|---|---|---|
| Focus / Basis | Based on GEOGRAPHICAL TERRITORY — includes all production within the country's borders | Based on NATIONALITY — includes all production by a country's residents, wherever located |
| Formula | GDP = C + I + G + (X − M) [Expenditure method] | GNP = GDP + Net Factor Income from Abroad (NFIA) |
| Treatment of Foreigners in India | Included in GDP (production within India's borders counts) | Excluded from GNP (foreigners are not Indian residents/nationals) |
| Treatment of Indians Abroad | Excluded from GDP (production outside India's borders not counted) | Included in GNP (Indian residents' income abroad is counted) |
| Practical Significance | Better measure of economic activity within the country's borders | Better measure of the income and welfare of a country's nationals |
The 'NFIA Can Be Negative' Trap
GNP = GDP + NFIA. If more foreigners work in India than Indians work abroad, NFIA is negative, making GNP < GDP. For a country like India that sends many workers abroad (remittances), GNP > GDP. Don't assume GNP is always greater than GDP.
Common Ground (Similarities)
- Both are measures of national output at market prices for a given period.
- Both include final goods and services only (to avoid double counting).
- Both can be measured using the same three methods: Product, Income, and Expenditure Method.
Test Your Understanding
Q1: An Indian IT professional working in the USA contributes to:
India's GDP only
USA's GNP only
India's GNP and USA's GDP ✅
India's GDP and USA's GNP
Explanation: Production within USA borders → USA's GDP. The Indian professional is an Indian resident/national → India's GNP.
Q2: GNP = GDP + ______
Depreciation
Net Factor Income from Abroad ✅
Net Indirect Taxes
Transfer Payments
Explanation: GNP = GDP + Net Factor Income from Abroad (NFIA). NFIA = Income earned by residents abroad − Income earned by foreigners in the country.