What is meant by the market return in the Capital Asset Pricing Model (CAPM)? Why is the

Question:

What is meant by the “market return” in the (CAPM)? Why is the market return greater than the risk-free interest rate? What does an asset’s “beta” measure in the CAPM? Why should high-beta assets have a higher than low-beta assets?
Capital Asset Pricing Model
The Capital Asset Pricing Model (CAPM) describes the relationship between systematic risk and expected return for assets, particularly stocks. The CAPM is a model for pricing an individual security or portfolio. For individual securities, we make use of the security market line (SML) and its... Expected Return
The expected return is the profit or loss an investor anticipates on an investment that has known or anticipated rates of return (RoR). It is calculated by multiplying potential outcomes by the chances of them occurring and then totaling these...