It is hard to place a rigorous definition on the poles of the continuum, but GSS administrators, using several criteria, provide a useful sorting of denominations into a three-category variable here called religiosity.
The most useful sort of disclosure will emerge from the market itself: Morningstar and Lipper are among those interested in rating individual hedge funds, though the difficulties are considerable.
The other kind of criticism seeks to be internal: if Rorty's view of science were to prevail, scientists would no longer be motivated to carry on as they are; science would cease to be the useful sort of thing that Rorty also thinks it is (see, eg., Bernard Williams, Auto da Fee" in Malachowski).
If our remedies do not target the true underlying sources of the crisis, our newfound regulatory zeal might end up killing useful sorts of financial innovation, along with the toxic kind.
But, as Patrick Rooney of Indiana University asks: "Who has the wisdom to decide what is a good charity?"Mr Reich, however, argues that the tax breaks would have greater credibility if they were designed to incentivise only the more useful sorts of charity, especially those focused on reducing poverty.
In this regard it proves useful a sort of perturbative approach.
The more data you have, the harder it is to distinguish the useful sort ("the signal" of the book's title) from the misleading or confusing ("the noise").
Mediation may also be a useful way of sorting out financial issues and living arrangements if initial attempts to reach agreement have failed.
And indeed, salient arguments have been made against genre categories, which are said to be more of a marketing tool than a useful means of sorting and suggesting books.
Useful, but sort of a one-shot device if you're not a serious collector.
