Have you ever noticed that a cart of groceries costs significantly more today than it did five years ago? That steady increase in prices over time is called inflation, and it represents a decrease in the purchasing power of your money.
What Causes Inflation?
Inflation generally occurs due to three main factors:
- Demand-Pull Inflation: Demand for goods and services outpaces economic supply.
- Cost-Push Inflation: Production costs increase (e.g. raw materials or wages), forcing businesses to raise retail prices.
- Monetary Expansion: Central banks increase the money supply faster than real economic growth.
The Secret Rule of 72 for Inflation
The Rule of 72 is a quick mental math shortcut to estimate how long it will take for your money's purchasing power to cut in half due to inflation.
Years to Halve Value = 72 / Inflation Rate
At a 3.6% annual inflation rate: 72 / 3.6 = 20 years. In 20 years, your cash will buy only half of what it buys today!
How to Protect Your Purchasing Power
Keeping all your savings in a traditional zero-interest checking account guarantees a loss of purchasing power over time. To combat inflation, financial advisors recommend:
- Investing in diversified stock index funds (historical average returns ~7-10%)
- High-yield savings accounts and Treasury Inflation-Protected Securities (TIPS)
- Real estate and income-generating assets
Estimate how inflation impacts your cash over time using our Inflation Calculator and plan long-term growth with our Investment Calculator.