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The Capital Asset Pricing Model (CAPM) is based on several key assumptions:
1. Risk-Averse Investors: CAPM assumes that investors are risk-averse, meaning they prefer less risk to more
risk for a given level of expected return.
2. Investment Decisions Based on Risk and Return: Investors make investment decisions based on the
expected risk and return of their portfolios.
3. Diversification: Investors are assumed to hold diversified portfolios to minimize their exposure to
unsystematic risk.
4. Homogeneous Expectations: All investors have the same expectations of risk and return for any given
investment.
5. Free Access to Information: All investors have free access to all necessary and available information.
6. Risk-Free Rate: There is a risk-free asset, and there is no restriction on borrowing and lending at the risk-
free rate.
7. Linear Relationship between Risk and Reward: The model assumes a linear relationship between the
level of risk and the expected return of an asset.
8. Investors are Price Takers: This means they cannot influence prices.
9. Unlimited Borrowing and Lending: The model assumes that investors can lend and borrow unlimited
amounts under the risk-free rate of interest.