Economics
Inflation Targeting
Quick fact
New Zealand was the first country to adopt formal inflation targeting in 1990, and now over 40 countries use some form of it, including the US, UK, Japan, and many emerging economies.
Why this is interesting
You've heard central banks talk about a 2% inflation target—but why pick a number at all, and what happens if they miss it?
Read the full explanation
Understanding Inflation Targeting
Inflation targeting is like a thermostat for an economy. Just as a thermostat sets a desired temperature and activates heating or cooling to maintain it, a central bank sets a target inflation rate (usually around 2%) and adjusts its policy interest rate to keep inflation on track. When inflation rises too high, the central bank raises interest rates, making borrowing more expensive and cooling spending. When inflation falls too low, it cuts rates to encourage borrowing and spending. By clearly announcing this target, the central bank helps businesses and households form stable expectations about future prices, which itself helps prevent runaway inflation or deflation. The framework doesn't micromanage inflation month by month; instead, it aims to average the target over the medium term, allowing flexibility for temporary shocks like oil spikes or recessions.
A deeper explanation
The mechanism behind inflation targeting relies on credibility and expectations. If the public believes the central bank will act to keep inflation near the target, then wage and price setters incorporate that belief into their decisions. This self-fulfilling prophecy makes the target easier to achieve. The central bank uses its policy rate as the primary tool, influencing short-term interest rates across the economy, which ripple into mortgage rates, business loans, and exchange rates. The deeper principle is that by anchoring expectations, the central bank can achieve price stability without sacrificing long-run employment—contradicting the old idea of a permanent trade-off between inflation and unemployment. Inflation targeting also fosters accountability: the central bank must explain deviations from the target, which builds democratic oversight. It matters because high or variable inflation distorts saving and investment decisions, erodes purchasing power, and hurts the poorest most; moderate, predictable inflation, on the other hand, allows economies to adjust real wages and prices smoothly.