Both the efficient frontier and beta are important aspects of MPT.

Question

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The efficient frontier represents the set of optimal portfolios that offer the highest expected return for a defined level of risk or the lowest risk for a given level of expected return, while beta measures the volatility or systematic risk of a security or a portfolio in comparison to the market as a whole. Both concepts are integral to Modern Portfolio Theory (MPT), which aims to maximize portfolio expected return for a given amount of portfolio risk.

Both the Efficient Frontier and Beta Are Important Aspects of MPT