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Hubble's law for distant galaxies, with H0 being Hubble's constant, states that
Market Risk Premium
The additional return an investor expects to receive from holding a risky market portfolio instead of risk-free securities.
Beta Coefficient
A measure of a stock's volatility in relation to the overall market, used in the Capital Asset Pricing Model to determine the expected return of the asset.
Systematic Risk
The danger that affects the whole market or a specific segment of the market, commonly referred to as market risk.
Unsystematic Risk
The risk specific to an individual asset or company, such as management decisions or product recalls, which can be mitigated through diversification.
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