Examlex
The density of Douglas firs in an old-growth forest is estimated by counting the Douglas firs in four sample plots of 1 hectare each. The number of fir trees in the plots is 10, 12, 7, and 11, respectively. What is the estimated density of firs in the forest?
Mean-Variance Efficient Portfolio
A portfolio constructed to have the highest possible return for a given level of risk, or equivalently, the lowest risk for a given level of expected return, according to Harry Markowitz's theory.
Firm-Specific Variances
Variability in a firm's stock price or returns that is attributable to factors unique to that firm, as opposed to general market factors.
Macroeconomic Factor
A wide-scale economic condition or variable that influences a broad economy and consequently affects individual businesses and financial markets.
Evolution of Beta
The evolution of beta refers to changes in the beta coefficient of an asset or portfolio over time, indicating variations in its volatility in relation to the broader market.
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