Rules Of Thumb
November, 1983
A rule of thumb is a recipe that people use to make up for a lack of facts. A rule of thumb may not tell you the best way to do something, but it will help you guess and get away with it. For several years, Tom Parker has been collecting such rules from around the world. His book "Rules of Thumb" will be published this fall by Houghton Mifflin.Planning a Dinner: As many as 25 percent of the guests at a university dinner party can come from the economics department without spoiling the...