Nominal versus real
Also known as: Nominal vs real, Real versus nominal values
The face-value number versus what it can actually buy after inflation.
What it means
The nominal-versus-real distinction separates the face value of an economic quantity, expressed in current currency units, from its real value, which adjusts for changes in the price level so that it reflects actual purchasing power. A nominal wage, interest rate, or GDP figure can rise even as the corresponding real figure falls, because inflation erodes what each unit of money buys; the real value is obtained by deflating the nominal figure with a price index. The distinction is foundational in economics because rational decisions about saving, borrowing, wages, and investment should turn on real magnitudes, not nominal labels. Yet people routinely reason in nominal terms, a systematic departure that gives rise to the money illusion and to sticky nominal wages and prices. It matters because confusing the two leads individuals and even policymakers to misjudge raises, returns, debts, and growth.
Examples
A bank account paying 3% interest looks like a gain, but if prices rise 5% the real return is negative two percent — your money buys less than before despite the larger balance.
A worker celebrates a two-percent pay rise while the prices in the shops climb four percent — the pay packet is bigger and the weekly shop is harder to afford.
Grandparents recall a cinema ticket costing pennies and conclude everything is a rip-off now, comparing face-value prices across decades rather than how long anyone worked to buy the ticket.
First described in Distinction crystallized by Irving Fisher.