Time Is Money
The time value of money is the principle that the purchasing power of money can vary over time; money today might have a different purchasing power than money a decade later. The value of money at a future point in time might be calculated by accounting for interest earned or inflation accrued. The time value of money is the central concept in finance theory. However, the explanation of the concept typically looks at the impact of interest, and for simplicity, assumes that inflation is neutral.