Individual-specific correlation circles indicated that relationships among some indices were consistent among most red knot individuals (Figure S2a).
Some indices fell to their lowest levels for many years.
Some indices focus on the prices of firms' inputs rather than the cost of consumer goods.
Tim Bond, author of the study, the Equity Gilt Study 2006, told The Times of London, "If you take some indices at face value, you are getting a flattering picture of the industry".
Momentum is an obvious explanation for bubbles like dotcom mania.AQR has put together some indices (and financial products) to try to take advantage of the effect.
One might be highly leveraged, taking big positions in "growth" stocks, while the other might be taking smaller positions in "value" stocks.More fundamentally, some indices include hedge funds that are closed to new business.
Worse, some indices are pointless or downright misleading.In this section Welcome back to Washington Temple madness Marijuana milestone Big bazookas How to lie with indices ReprintsAs easy as 1, 2, 3Which to trust, and which to ignore?
Some indices incorporate arithmetical problems.
However, some indices seem to provide similar information.
Some indices that were found to be linearly related and redundant were removed from the study.
Mathematical models for calibration and prediction of some indices of maturity are proposed.
