Growth can be more output, or just higher prices.
Every growth number comes in two versions: one counts higher prices as growth, one refuses to. The difference between them is the difference between a bigger economy and a costlier one, and between your raise on paper and your raise in fact.
The charts on this page draw the national accounts at 2011-12 prices, the series that ran to July to September 2025. The NSO now publishes GDP at 2022-23 prices. The idea on this page works the same on either ruler; the latest figures are in the GDP guide.
Two versions of every growth number
First principlesSay India's GDP grows 9 per cent in a year. That sentence hides a question: 9 per cent more what? One answer is real output: 9 per cent more wheat, steel, software and haircuts. The other is prices. Or it could mean the economy produced the same amounts, only costlier. Usually it is some of both, and the two readings describe very different countries.
So the statisticians publish growth twice.
In an economy with rising prices, the nominal figure always outruns the real one. The gap between them is not an error. It is itself a number, and a revealing one.
The arithmetic, with toy numbers
A worked example, illustration, not dataImagine a toy economy whose whole output is ₹100 of rice. The next year the bill is ₹110: nominal growth is 10 per cent. But suppose the price of rice rose 4 per cent over the same year. Then only part of the extra ₹10 is more rice. Divide the money growth by the price growth, 1.10 by 1.04, and the answer is 1.058: real growth of 5.8 per cent, which rounds to about 6. The rest of the headline was price, not output.
The quick rule is the one to keep: real growth is roughly nominal growth minus inflation. Roughly, because the honest version divides rather than subtracts. At Indian magnitudes the two differ by a fraction of a point, so subtraction is the mental arithmetic and division is the official one.
The same arithmetic runs your payslip. Suppose your salary rises 8 per cent in a year when inflation is 5 per cent. Your nominal gain is 8 per cent; your real gain is 1.08 divided by 1.05, or about 3 per cent. You are 3 per cent richer, not 8. The other 5 per cent was the price level climbing to meet your raise.
The deflator: the second inflation rate
Nominal ÷ realStrip prices out of GDP often enough and a pattern emerges: the ratio of the nominal figure to the real one behaves like a price index for the whole economy. It has a name, and it is published with every GDP release.
Two inflation rates, two jobs. The CPI asks what it costs a household to live. The deflator asks what happened to the price of everything made in the country: machines, exports, roads, government services. When commodity prices swing, the two part company for quarters at a time, and the gap between nominal and real growth tells you so.
| The question | Quote | Why |
|---|---|---|
| Did the economy actually produce more?output over time | Real | Prices are held still, so only output can move the number |
| How big is the tax base?revenue, turnover | Nominal | Taxes are collected in the rupees of the day |
| Is my pay keeping up?raises vs prices | Real | Divide the raise by inflation before spending it |
| How fast are company revenues growing?top lines | Nominal | Turnover arrives in the prices of the day |
| What is inflation doing inside GDP?the second rate | Deflator | It is the gap between the two, read as a price index |
How to misread this concept
- i.
“Growth is growth.”
No. Ten per cent nominal growth with 9 per cent inflation is a near-stationary economy; with 2 per cent inflation it is a boom. The same headline, two different countries. Always ask which yardstick is in use before repeating the number.
- ii.
“Real growth is the government's trick to make numbers small.”
The correction runs both ways and cuts everyone equally. Strip out price rises and GDP shrinks to its honest size; strip them out of your raise and an 8 per cent increase becomes about 3. Nobody calls that manipulation when it applies to a payslip. The same division, applied to the whole economy, is not a trick either.
- iii.
“My 10 per cent raise made me 10 per cent richer.”
Only if prices stood still. If inflation was 6 per cent, you gained about 4. The payslip is nominal; your life is real. Run the division first, then decide what the raise can actually buy.