Examlex
Define and explain the difference between fashion and fad.
Risk Aversion
The inclination to avoid taking risks, preferring safety over potential higher returns.
Optimal Risky Portfolio
A portfolio that offers the highest expected return for a given level of risk.
Systematic Variance
The portion of a security's return variance that is attributable to macroeconomic factors and cannot be diversified away.
Total Variance
The sum of squared deviations from the mean, indicating the overall level of variability within a dataset.
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