Context:
India has revised the base year of GDP calculations to 2022-23, leading to changes in economic structure estimates and overall GDP size.
Key Highlights:
- Government Initiative / Policy Details
- National Statistical Office (NSO) revised National Accounts Statistics (NAS).
- Base year updated from 2011-12 to 2022-23.
- Data / Structural Changes
- GDP size reduced by ~3–4% in new series.
- Agriculture and industry shares increased.
- Services sector share declined.
- Private corporate sector share fell by ~1.5%.
- Economic Trends Observed
- Rise in household/informal sector contribution.
- Decline in manufacturing sector size (~1.5–1.6%).
- Concerns / Issues
- IMF previously rated India’s data quality as ‘C’ grade.
- Need for clarity on methodology of revision.
Relevant Prelims Points:
- Gross Domestic Product (GDP):
- Total value of goods and services produced in an economy.
- Base Year:
- Reference year used to measure real growth (adjusted for inflation).
- National Accounts Statistics (NAS):
- Comprehensive macroeconomic data system.
- Revision Frequency:
- Typically every 5–10 years.
- Sectors of Economy:
- Primary (Agriculture), Secondary (Industry), Tertiary (Services).
Relevant Mains Points:
- Importance of Base Year Revision:
- Reflects structural changes in the economy.
- Improves accuracy of economic measurement.
- Implications for Policy Making:
- Alters perception of sectoral performance.
- Impacts fiscal planning and economic targets (e.g., $5 trillion goal).
- Structural Insights:
- Increase in informal sector share indicates persistent informality.
- Decline in manufacturing share raises concerns for industrialisation goals.
- Data Reliability Issues:
- Concerns about methodology transparency and credibility.
- Need for robust statistical systems.
- Challenges:
- Difficulty in capturing informal sector data accurately.
- Frequent revisions may affect policy consistency.
- Way Forward:
- Enhance data collection and statistical capacity.
- Increase transparency in methodology.
- Align GDP metrics with ground economic realities.
UPSC Relevance:
- Prelims: GDP, base year, NAS.
- Mains GS Paper 3: Economic measurement, structural changes, data reliability.