Why does the value of money decrease over time?
It's not your imagination, money loses buying power over time. That's inflation, and it's actually by design.
The simple reason
Prices tend to rise over time. So the same amount of money buys less than it used to. This steady rise is called inflation, and a little of it is actually considered healthy.
Why does this happen?
- More money in the system: As economies grow, more money circulates. If money grows faster than the stuff to buy, prices rise.
- Demand grows: As people earn more and buy more, businesses can charge more.
- Costs rise: When materials, wages, or energy cost more, businesses pass those costs to you.
Why a little inflation is "good"
Central banks usually aim for about 2% inflation a year. Why?
- It encourages people to spend or invest rather than hoard cash.
- It gives the economy room to adjust wages without forcing pay cuts.
- Deflation (falling prices) can be worse, people delay spending, businesses earn less, jobs are cut.
The danger for your savings
If inflation is 3% and your bank pays 1% interest, you're losing 2% of buying power every year. That's why just saving cash long-term isn't enough, investing helps your money grow faster than prices rise.
How to fight back
- Invest in things that tend to grow in value (stocks, index funds).
- Use CPF, which pays interest above typical bank savings.
- Spend less than you earn and put the gap to work.
Investing Time Machine
It's 2015. You have $1,000. Split it across 5 companies and fast-forward 10 years.
In 2025 your $1,000 became
$10,490
+949% gain
Best pick: Nvidia $200 → $6,429
AI & graphics chips. The decade's wildest ride.
iPhones, services, loyal fans.
Windows, cloud, a steady climber.
Parks & streaming. Flat decade overall.
Korean electronics giant. Modest gains.
Interactives
Hover any term to see its definition: