Examlex
The sales data for a company measured in the week following an increased ad campaign would be considered cross-sectional data.
Portfolio Beta
A measure of the volatility of a portfolio relative to the overall market; the aggregate beta of all the investments in the portfolio.
Systematic Risk
The inherent risk associated with the entire market or market segment, undiversifiable through portfolio diversification.
Unsystematic Risk
The risk associated with a specific company or industry, which can be mitigated through diversification of an investment portfolio.
Security Market Line
A representation in the capital asset pricing model (CAPM) showing the relationship between expected return and systematic risk.
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