Comparisons
Concepts people often mix up, explained side by side.
APR vs Interest Rate
The interest rate is the cost of borrowing the money itself. APR is the interest rate plus required fees, expressed as a yearly rate — so APR is usually equal to or higher than the interest rate.
Simple vs Compound Interest
Simple interest is paid only on the original amount. Compound interest is paid on the original amount plus interest already earned, so it grows faster over time.
Saving vs Investing
Saving keeps money safe and available for short-term needs. Investing accepts ups and downs in exchange for higher expected long-term growth.
Index Funds vs ETFs
An index fund is a strategy — tracking a market index. An ETF is a structure — a fund that trades on an exchange like a stock. Many ETFs are index funds, so the choice is mostly about how you buy and hold them.
Inflation vs Deflation
Inflation is a general rise in prices; deflation is a general fall in prices. Central banks usually target mild inflation (about 2%) because deflation can trap an economy in falling spending.
Debt Snowball vs Debt Avalanche
Both pay minimums on every debt and throw extra money at one target. Snowball targets the smallest balance first; avalanche targets the highest interest rate first.