Optimists, however, argue there may be benefits from today's fad for currency fiddling.
Asia's sushi fad bodes ill for the bluefin tuna even on the far side of the world.
When a communications medium is both riding the Moore's Law cost-capability curve and tapping into a deep need, it's no fad.
It was the world's first beer fad, and porter breweries, bolstered by steam-age technology, grew to unprecedented size.
They're a fad in the U.S., but their real mission is to serve as an affordable first computer for the masses in the developing world.
As a fad--and it is a fad--the catastrophist's view of global warming has peaked.
He argued that the Merc's currency had been proved while Sprecher's looked like an investor fad.
The company has also branched out into air-conditioners, which it hopes will become China's next consumer-appliance fad.
That's true of the latest fad to catch fire: learning style.
The stock's climb "symbolizes the broader market's and institutional investors' appreciation" of organic food as more than a fad, Ms. Ashby said in her office last week after Solera and Annie's employees, along with their children, rang the opening bell at the New York Stock Exchange.
Keep in mind, however, that in children it's sometimes hard to tell what's an eating disorder and what's simply a whim, a new fad, or experimentation with a vegetarian diet or other eating styles.
The Hakuhodo Institute of Life and Living in Tokyo reckons there are 3m young women living within an hour of Shibuya's shops, poised to pounce on the latest fad.
Since the mid-1990s the strategic rollup has been a corporate fad: Large acquirers buy smaller players in fragmented industries, reaching for critical mass, McDonald's-like uniformity and that beloved state of bliss called synergy.
Since the mid-1990s the strategic roll-up has been a corporate fad: Large acquirers buy smaller players in fragmented industries, reaching for critical mass, McDonald's-like uniformity and that beloved state of bliss called synergy.
Indeed, today's loans to telecoms firms may turn out to be much like property lending a decade ago, a fad that caused economic downturn and, for a while, stopped the bull market in its tracks.
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