Conversely, if there was no satisfactory explanation the estimate might remain
a useful yardstick with which to measure reasonableness.
The estimate is
a useful yardstick by which the reasonableness of the costs may be measured.
But it's
a useful yardstick.
Commodities can be measured in this fashion to other commodities, but they lack the uniformity, consistency and familiarity and fungibility of gold which make
it a useful yardstick.
While manufacturers» official figures are often hard to match in the real world, they serve as
a useful yardstick when comparing cars.
Not exact matches
On that same note, as you read this introductory article and discover how
useful the P / E ratio can be, keep in mind you can't always rely on price - to - earnings ratios as the be-all-end-all
yardstick in determining whether a company's stock is expensive.
Astronomers thought that all Type Ia supernovas shine with the same brightness, making them incredibly
useful cosmic
yardsticks.
Benchmarking, as it's called, is only
useful if you compare your performance with an appropriate
yardstick.
If there is a satisfactory explanation for the difference then the estimate may cease to be
useful as a
yardstick with which to measure reasonableness.