Jobs data have been an especially powerful indicator of the economy's strength.
The world's richest man was, himself, the most powerful economic indicator on the planet.
The fear and suspicion of religious indoctrination is a most powerful indicator of the opposite trend being uppermost.
International accreditation has become a powerful indicator of a health care organization's commitment to high-quality care and patient safety.
More than a dozen studies since the late 1990's have suggested that elevated levels of the protein may be a powerful indicator of heart disease.
Mr. Axelrod feels it is a powerful indicator.
But examining that spending in conjunction with a stock's price-to-book multiple can yield a powerful indicator of future performance.
Intel's expected decision to enter the television market is another powerful indicator of the computer industry's assault on the consumer electronics industry.
The study is a powerful indicator of the importance of planning for retirement, no matter how much money you make.
The most powerful indicator is the share of turnover in the total market.