Inflation
Inflation is a general rise in prices over time.
About this topic
Inflation is a sustained rise in the general price level, reducing the purchasing power of money. It is measured by the Consumer Price Index (CPI), the cost of a basket of typical goods, with a typical target of about 2 percent. Causes include demand-pull (too much demand chasing too few goods), cost-push (rising costs of inputs such as oil or wages) and excessive growth in the money supply.
Inflation matters because it erodes savings and fixed incomes, makes planning harder and can hurt the poor most. Mild inflation is considered normal, but high inflation or hyperinflation can wreck an economy. Deflation, falling prices, is also harmful because people delay spending.
Example: if a basket costs 100 dollars last year and 103 now, inflation is 3 percent. Money in a savings account paying 1 percent loses buying power, since the real interest rate is about minus 2 percent. Someone earning 50,000 dollars with no raise in a 5 percent inflation year is effectively poorer. In Zimbabwe in 2008 prices doubled in days. Central banks fight inflation by raising interest rates.
Misconceptions: inflation does not mean every price rises equally, and a falling inflation rate does not mean prices are falling, only that they rise more slowly. Tip: always compare nominal and real values.
Key ideas
- CPI measures it
- Erodes purchasing power
- Central banks aim for about 2%
Quick check
Use cases: where Inflation helps
- Homework: review the key idea behind Inflation before you start a problem set.
- Exam revision: use the quick check to test whether you can recall Inflation without notes.
- Visual learning: play with the interactive lab to see how Inflation changes when you adjust its inputs.
- Teaching a friend: explain Inflation in your own words, then compare your version with the key ideas.
Economics explains prices, jobs, budgets and government policy in daily life.
Frequently asked questions
What is Inflation?
Inflation is a general rise in prices over time.
What will I learn in Inflation?
CPI measures it. Erodes purchasing power. Central banks aim for about 2%.
Is Inflation part of Economics & Money?
Yes. It is one of 30 Economics & Money topics on LearnViz HighSchoolEdu, with 3 key ideas, a live animation and a quick check.
Does the Inflation lab work on a phone or tablet?
Yes. The animation resizes to fit your screen and supports touch, so you can drag, tap and slide with your finger.
How should I study Inflation?
Read the summary and key ideas first, play with the interactive lab to see the idea in motion, then answer the quick check. If you get a question wrong, go back to the key idea it tests.
Do I need an account, and is my progress saved?
No account is needed. Marking a topic as learned is saved in your own browser, so it stays on that device and is not sent to a server.