Why in news
- Ministry of Statistics and Programme Implementation (MoSPI) issued technical clarifications regarding manufacturing Gross Value Added (GVA) deflator methodology.
- The clarification addressed concerns over a negative implicit manufacturing deflator during periods of volatile input costs.
What is Double Deflation?
- A national accounting method where output values are deflated using output price indices and intermediate input costs are deflated using specific input price indices separately.
- It computes real Gross Value Added by subtracting real intermediate inputs from real gross output.
Mechanism Behind Negative GVA Deflator
- A negative implicit GVA deflator occurs when raw material input inflation rises faster than final factory-gate output price inflation.
- It does not signify falling nominal factory-gate prices, but reflects margin compression caused by input price divergence.
Why it matters
- Crucial for accurate estimation of real GDP growth without distortion from single-deflator assumptions.
- Helps economic policy analysts separate physical production growth from price movement artifacts in manufacturing GVA.
Key terms
GVA Deflator
Ratio of nominal Gross Value Added to real Gross Value Added, reflecting overall price changes in production.
Single Deflation
An alternative estimation method where a single output price index is used to deflate both gross output and intermediate inputs.
Prelims facts
- Double deflation deflates intermediate inputs and gross outputs using distinct price indices.
- Negative implicit GVA deflator can result when input inflation exceeds output price inflation.
Mains discussion
- Challenges in accurate GDP measurement and the need for structural statistical reforms in national accounting.
Source: Hindu Business Line Economy
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