Roll's Critique

Definition:

That the CAPM holds by construction when performance is measured against a mean-variance efficient index; otherwise, it holds not at all. Attributable to Richard Roll in 1977.

Investing Essentials


Copyright © 2011 Campbell R. Harvey, Professor of Finance, Fuqua School of Business at Duke University

Term of the Day

Pro forma Earnings

Often used in two ways. First, pro forma earnings refers to projections of earnings. This is often used internally or on a road show for an IPO. Second, it refers to a way of reporting earnings that... Read More

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