Examlex
In cluster sampling,a population is divided into subgroups called clusters,and a sample is randomly selected from each cluster.
Well-Diversified Portfolio
An investment portfolio that includes a mix of assets (e.g., stocks, bonds, real estate) to reduce risk through diversification.
Nonsystematic Variance
Refers to the variability in a security or portfolio returns that is not due to market-wide influences but rather specific to an individual security or firm.
Factor Beta
Sensitivity of security returns to the realization of a systematic factor. Also called factor loading and factor sensitivity.
Economic Growth
The increase in the amount of goods and services produced by an economy over time, often measured by the annual percentage growth of a country's gross domestic product (GDP).
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