Historical data for the S & P 500 Index show an average excess return over Treasury bills of about 8.5 % with standard deviation of about 20 %. To the extent that these averages approximate investor expectations for the sample period, what must have been the co-efficient of risk aversion of the average investor? If the co-efficient of risk aversion were 3.5, what risk premium would have been consistent with the market’s historical standard deviation?
Risk and return
Before understanding the concept of Risk and Return in Financial Management, understanding the two-concept Risk and return individually is necessary.
Capital Asset Pricing Model
Capital asset pricing model, also known as CAPM, shows the relationship between the expected return of the investment and the market at risk. This concept is basically used particularly in the case of stocks or shares. It is also used across finance for pricing assets that have higher risk identity and for evaluating the expected returns for the assets given the risk of those assets and also the cost of capital.
Historical data for the S & P 500 Index show an average excess return over Treasury bills of about 8.5 % with standard deviation of about 20 %. To the extent that these averages approximate investor expectations for the sample period, what must have been the co-efficient of risk aversion of the average investor? If the co-efficient of risk aversion were 3.5, what risk premium would have been consistent with the market’s historical standard deviation?
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