Why in news
- Ministry of Statistics and Programme Implementation defended GDP growth estimates and explained the divergence between the GDP deflator and retail or wholesale inflation indices.
What is the GDP Deflator?
- Ratio of nominal GDP to real GDP, reflecting price changes across all goods and services produced in an economy.
- Unlike Consumer Price Index or Wholesale Price Index, the GDP deflator is not based on a fixed basket of goods and automatically adjusts for changing consumption patterns.
Methodological Rationale and Revisions
- Periodic base-year revisions update source data and methodologies to accurately reflect structural shifts in economic activity.
- Divergence between retail CPI and GDP deflator arises because the deflator includes capital goods, exports, and government expenditure while excluding imported goods.
Why it matters
- Understanding the implicit price deflator is essential for evaluating real economic growth versus nominal expansion in national income accounting.
Key terms
GDP Deflator
Measure of price inflation calculated as nominal GDP divided by real GDP multiplied by 100.
Nominal GDP
Gross domestic product evaluated at current market prices without adjusting for inflation.
Prelims facts
- GDP deflator includes all domestically produced goods and services, unlike WPI or CPI.
Mains discussion
- Role of accurate statistical accounting in macro-fiscal planning and policy formulations.
Source: Economic Times
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