A) What do you mean by portfolio? b) Why is it important for an investor? c) Describe Capital Asset Pricing Model (CAPM).

Here is the answer for question 15:

a) What do you mean by portfolio?

A portfolio is a collection of financial assets owned by an individual or institution. These assets can include stocks, bonds, mutual funds, real estate, and cash equivalents. The purpose of a portfolio is to achieve specific financial goals, often by balancing risk and return.

b) Why is it important for an investor?

A portfolio is crucial for investors primarily due to diversification. By combining various assets, investors can reduce unsystematic risk (company-specific risk) because the poor performance of one asset may be offset by the strong performance of another. This allows investors to achieve a desired level of return for a given level of risk, or minimize risk for a target return.

c) Describe Capital Asset Pricing Model (CAPM).

The Capital Asset Pricing Model (CAPM) is a financial model that describes the relationship between the expected return and systematic risk of an asset. It is used to determine the theoretically appropriate required rate of return of an asset, given its risk. The CAPM formula is:

$$E(R_i) = R_f + \beta_i (E(R_m) - R_f)$$

Where:

• $E(R_i)$ is the expected return on the asset.
• $R_f$ is the risk-free rate of return (e.g., return on government bonds).
• $\beta_i$ (beta) is the systematic risk of the asset, measuring its volatility relative to the overall market.
• $E(R_m)$ is the expected return of the market.
• $(E(R_m) - R_f)$ is the market risk premium, which is the additional return investors expect for taking on market risk. CAPM helps investors understand the compensation they should expect for taking on additional risk.