Inflation — The Dollar Dictionary

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Economics

Inflation

The general rise in prices across an economy over time, which gradually erodes the purchasing power of money.

Inflation is measured by tracking the price of a basket of goods — food, housing, clothing, energy, transport — that a typical household buys. The Consumer Price Index (CPI) is the most common measure. When CPI rises 5% year-on-year, prices on average rose 5% compared to the previous year.

Inflation has winners and losers. Debtors win: if you owe £100,000 on a mortgage, inflation erodes the real value of that debt over time — you're repaying in cheaper pounds. Savers lose: cash sitting in a low-interest account loses real value if inflation exceeds the interest rate. Assets like real estate, stocks, and commodities often outpace inflation — which is why investing beats hoarding cash over long periods.

Inflation is like a slow leak in your wallet. The money is still there — but it buys less every year. A cinema ticket that cost £5 in 2000 might cost £15 today. Your £5 note didn't change, but its buying power shrank. The goal isn't to eliminate inflation entirely (deflation is worse) but to keep it at a gentle, predictable 2% annually — just enough to encourage spending without punishing savers.

Real world: In 2022, UK inflation hit 11% — the highest in 40 years, driven by energy price spikes after Russia's invasion of Ukraine and post-COVID supply chain disruptions. A family spending £2,000/month on essentials suddenly needed £2,220 to buy the same things. The Bank of England raised interest rates aggressively to bring inflation back down — squeezing mortgages and business costs in the process. Inflation touches everyone, everywhere, simultaneously.

💡 Inflation is money's aging process — everything costs more eventually, which is the single strongest argument for investing rather than saving.

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