Rescaled Range (R/S) Analysis

Definition:

The analysis developed by H.E. Hurst to determine long-memory effects and fractional Brownian motion. Rescaled range analysis measures how the distance covered by a particle increases as we look at longer and longer time scales. For Brownian motion, the distance covered increases with the square root of time. A series which increases at a different rate is not random. See: Anti-persistence, Fractional Brownian Motion, Hurst Exponent, Persistence, Joseph Effect, Noah Effect.

Investing Essentials


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

Term of the Day

Variable cost

A cost that is directly proportional to the volume of output produced. When production is zero, the variable cost is equal to zero.

Subscribe to the Term of the Day via email Get the Term of the Day in your inbox!


Create your free portfolio