Double Deflation Technique in Modern GDP Estimation
Recently, the release of quarterly GDP numbers for 2026-27 has sparked intense debate regarding the gap between official macroeconomic data and ground realities.
- At the heart of these technical updates lies the adoption of the double deflation method-a significant revision introduced in India's latest GDP series (with 2022–23 as the base year).
What is Double Deflation?
- Double deflation is an advanced statistical approach used to calculate Gross Value Added (GVA) at constant prices by independently adjusting outputs and intermediate inputs for price changes.
Under the double deflation technique:
- Output Deflation: The total nominal value of what an industry produces is adjusted ....
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