Learning path
Money over time
How money grows, what it is worth today, what inflation takes, and what costs take.
5 lessons, about 20 minutes in all. Take them in order.
- Compound interest 5 min
Interest that earns interest, and why the years matter more than the rate looks.
- Present value 5 min
How to compare money paid at different times.
- Measuring inflation with a price index 4 min
How a basket of shopping turns into one inflation number.
- Real and nominal interest rates 3 min
What your savings really earn once rising prices are counted.
- Costs and the market return 3 min
Why investors as a group must earn the market return minus their costs.