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Calculate Historical Equity Risk Premium

One way to calculate the Equity Risk Premium (ERP) is to use historical data. First, we calculate the annual difference between the stock market return and the US Treasury return. Second, we take the average of these annual differences. In this exercise, you will calculate the historical ERP using data from 1928 to 2016. For this exercise, we use the stock market return (sp_500) and US Treasury return (tbond_10yr) from Professor Damodaran's website. Both these variables are stored in the object damodaran.

Diese Übung ist Teil des Kurses

Equity Valuation in R

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Anleitung zur Übung

  • Calculate the difference between the stock return and the bond return each year.
  • Take the average or mean of the annual differences.

Interaktive Übung

Vervollständige den Beispielcode, um diese Übung erfolgreich abzuschließen.

# Review the first six rows of damodaran
head(damodaran)

# Calculate annual difference between stocks and bonds
diff <- ___

# Calculate ERP
erp <- ___
erp
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