What is inflation, in simple terms
Inflation is the general, sustained rise in prices over time. When there's inflation, the same amount of money buys fewer things than before: the purchasing power of currency decreases. It's measured by comparing a "basket" of typical goods and services from one year to the next.
What it really means
Imagine a grocery basket that cost €100 last year now costs €105: that's 5% inflation. It's not that one product got more expensive — it's the average price level of many goods and services.
Low, stable inflation (around 2%) is considered healthy: it signals a growing economy. It becomes a problem when it's too high and fast, because wages and savings can't keep up.
Why prices rise
Two main causes. First: demand exceeds supply — too many people want to buy the same things (maybe because they have more money to spend) and sellers raise prices. Second: production costs rise — more expensive energy, raw materials or transport — and companies pass the increase on to the final price.
The amount of money in circulation matters too: if there's much more money available but the same quantity of goods, each euro is "worth" a little less.
What it does to your money
Inflation is an invisible tax on idle savings. Example: €10,000 in the bank, with 5% inflation, buys after a year what €9,500 used to buy before. The number on the account is identical, but it's worth less.
That's why central banks raise interest rates when inflation is high: they make money more expensive to cool demand and bring prices back under control.
In short
- Inflation = a general, ongoing rise in prices over time.
- It reduces purchasing power: the same money buys less.
- It arises from demand exceeding supply or from higher production costs.
- It erodes idle savings and is why central banks raise rates.
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