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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.

Latihan ini adalah bagian dari kursus

Equity Valuation in R

Lihat Kursus

Petunjuk latihan

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

Latihan interaktif praktis

Cobalah latihan ini dengan menyelesaikan kode contoh berikut.

# 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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