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Explain a key advantage and a key disadvantage of Jensen's alpha.
Portfolio Variances
Measures the dispersion of average returns of a portfolio from its mean, indicating the level of risk involved.
Expected Return
The estimated average return on an investment, accounting for the probabilities of each possible outcome.
Undiversifiable Risk
A type of risk inherent to the entire market or market segment that cannot be mitigated through diversification.
Beta Coefficient
The beta coefficient measures the volatility of an investment in relation to the market as a whole, indicating its relative risk.
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