Lesson

Inflation-adjusted returns are an important concept in portfolio performance measurement, as they provide a more accurate representation of an investment's real return by accounting for the effects of inflation.

Practice Question #1

Which of the following best describes the real return on an investment?

Options

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Terms

Real return:
The rate of return on an investment after adjusting for inflation.

Practice Question #2

What is the primary purpose of calculating inflation-adjusted returns?

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Do Not Confuse With

Nominal return:
The rate of return on an investment without adjusting for inflation.

Practice Question #3

If an investment has a nominal return of 8% and the inflation rate is 3%, what is the real return on the investment?

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Historical Example

In the 1970s, the United States experienced a period of high inflation, with the annual inflation rate reaching double digits. During this time, investors who did not account for inflation in their investment decisions may have believed they were earning positive returns. In reality, their real returns were negative due to the eroding effects of inflation on their purchasing power.

Practice Question #4

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Real-World Example

An investor purchases a bond with a 5% annual yield. If the inflation rate is 2%, the investor's real return on the bond is 3% (5% nominal return - 2% inflation rate).

Practice Question #5

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Formulas to Remember

Inflation-adjusted return = ((1 + Nominal return) / (1 + Inflation rate)) - 1

Formula Examples

Suppose an investor has a nominal return of 8% on an investment, and the inflation rate for the same period is 3%. To calculate the inflation-adjusted return, follow these steps: 1. Add 1 to the nominal return: 1 + 0.08 = 1.08 2. Add 1 to the inflation rate: 1 + 0.03 = 1.03 3. Divide the result from step 1 by the result from step 2: 1.08 / 1.03 = 1.0485 4. Subtract 1 from the result in step 3: 1.0485 - 1 = 0.0485 = 4.85%

Pitfalls to Remember

- *Negative nominal return*:
If the nominal return is negative, the formula may result in an inflation-adjusted return that is more negative than the nominal return, which may not accurately reflect the investor's experience.

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