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

Double-dip lease

A cross-border lease in which the different rules of the lessor's and lessee's countries let both parties be treated as the owner of the leased equipment for tax purposes.

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