But for employers, having their staff continually improving their skills is a double-edged sword.
Metaphors, to use an overused metaphor, are a double-edged sword: sometimes they clarify, sometimes they confuse.
Still, many Chinese and Western economists and demographers say that urbanization can be a double-edged sword.
Most importantly, leverage is a double-edged sword and could have dire financial consequences for a retiree.
But this could be a double-edged sword, as drug companies are swamped with difficult-to-prioritize targets.
However, success could be a double-edged sword, as early-season form could see several players getting England calls.
"The findings are highly promising but nevertheless a double-edged sword due to the limited supply, " said P.
In such an environment, the information that an EITI can gather and disseminate is a double-edged sword.
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The electronic trading that allows Knight to provide such services has proven to be a double-edged sword.
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"In certain cases, (a federal criminal case can be) a double-edged sword, " says USADA chief executive Travis Tygart.
Nevertheless, its record-breaking, headline grabbing sales of the late have been a double-edged sword for the auction house.
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Hence we think the push toward original programming could be a double-edged sword.
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Despite its theoretical appeal, preemption as an IW strategy represents a double-edged sword.
Inane and attention-grabbing advertising, while often effective in terms of customer acquisition, can also be a double-edged sword.
However, on the most obvious indicator of all - the oil price - it's very much a double-edged sword.
" She said raising her own child in the shadow of that loss makes every day "a double-edged sword.
While the fall of the greenback has aided manufacturing, a free fall of the American currency is a double-edged sword.
It turns out that this kind of mix-'em-up creativity is a double-edged sword for a man of Powell's clout in the industry.
"Choice is a double-edged sword, " says QuantumShift Chief Executive Scott Schaefer .
"It's a double-edged sword - from a team point of view it's a fantastic achievement but we are driven to win, " said McNish.
Despite being an advocate and practitioner of using parody when appropriate, I also recognize the perils as it can be a double-edged sword.
"It's a double-edged sword - the staff who should be on their holidays are here but the children are not on site, " he said.
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Down the road, this Medicare boost could be a double-edged sword.
Extremely low interest rates are a double-edged sword for Wells Fargo.
Of course, investing in high-yielding stocks can be a double-edged sword.
Managing our expectations is a double-edged sword: we need one side for opening ourselves to expansion, and the other, for warding off the expectations of others.
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In reality, nationalism remains a double-edged sword, which does at times buttress the regime but can also develop in ways that threaten the political status quo.
In terms of London, Hunt said the enormous enthusiasm the population of Vancouver, and Canada in general, have shown for these Olympics, could be a double-edged sword.
But the very purity of the Dell model, which helped to make it America's fourth-most-admired company in a recent poll in Fortune, could be a double-edged sword.
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