CAPM

The Capital Asset Pricing Model (CAPM) is a financial model that describes the relationship between the return on an asset and the risk of that asset. It is used to determine the appropriate rate of return on an investment, given its level of risk.

Applications of CAPM

CAPM is used in a variety of financial applications, including:

• Pricing assets: CAPM can be used to determine the fair value of an asset, based on its risk and the expected return on the market.
• Portfolio management: CAPM can be used to construct portfolios that are efficient in terms of risk and return.
• Capital budgeting: CAPM can be used to evaluate the cost of capital for a project, which is the rate of return that investors require to invest in the project.
• Performance evaluation: CAPM can be used to evaluate the performance of a portfolio manager, by comparing the portfolio's return to the CAPM-predicted return.

The CAPM Formula

The CAPM formula is:

r_a = r_f + β_a * (r_m - r_f)

where:

• r_a is the expected return on the asset
• r_f is the risk-free rate
• β_a is the beta of the asset, which measures the volatility of the asset relative to the market
• r_m is the expected return on the market

Limitations of CAPM

CAPM is a useful tool for understanding the relationship between risk and return, but it has some limitations. These limitations include: