But the single factor that can show dramatic shifts in ranking in a single year is selectivity.
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The single factor that gives indexing an advantage over active management is the size of the operating expense headwind.
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The war was the single biggest factor in finally helping the U.S. dig out of the Great Depression, largely because it generated jobs and exports.
"Hot and muggy weather and continuous heavy use of air conditioning remain the single largest factor affecting peak electricity demand in the summer, " Edward Schwerdt, president of the power coordinating council, told reporters on a conference call.
The single is the fastest selling single in the Irish Republic this year and the fastest selling non-X Factor single of the last six years.
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Gelb pointed to the shift in Congress as the single biggest factor at work.
As President Obama has said, strengthening our education system is probably the single biggest factor affecting the future success of our nation.
The recent depression in the stock price has been the single largest factor in making these multiples move to such attractive levels.
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Clearly, the recent Hamdan decision from the Supreme Court forced the administration's hand, and I would guess that was probably the single biggest factor here.
"The single biggest factor is ticket revenue, and a new venue is going to drive high-end ticket sales, " says Bernie Mullin, who runs the Atlanta-based Aspire Group, an industry consultant.
Ms Teather added that there was overwhelming evidence that a child's development in the first five years' of their life is the single biggest factor influencing their future life chances, health and education attainment.
What happens to Picower's treasure is the single most important factor in the success or failure of Picard's effort to recover funds for some of Bernie Madoff's victims.
Perceptions of firm American support for Israel may be the single most decisive factor in the calculations of her regional enemies concerning the consequences of attacks against the Jewish state.
Beyond starting with a quality product, it may be the single most important factor and often the most abused lever on the mixing machine.
Unusually, both the Hillsborough single and the X Factor song were available on CD - increasingly a rarity in an era when downloads account for 99% of all single sales.
Despite all these promising results, the main single limited factor for achieving economic rentability remain high transport costs from the origin of garbage to the transformation site.
But my dim recollection is that the single most important factor in selecting a stroller, besides price (particularly when you're rushing for the crosstown bus with your kid under your arm, or chasing it down the Spanish Steps), is weight.
Perhaps the single most important factor in choosing a cloud storage provider is location.
Early on the government had determined that technology was the single most important factor in rising health care costs.
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If there were such change, it would be possibly the single most important factor in stimulating optimism about change elsewhere.
The firm said the single most important factor cutting like-for-like sales had been a decision not to chase unprofitable sales in sectors such as computing, which are highly competitive.
That is a change that helps boost the Indonesian economy, and, as decades of history have shown, the single most important factor in an improved environment is a robust economy.
If you had to pinpoint the single most important factor to decision-makers in American higher education, it would not be truth, it would not be justice, and it certainly would not be effective teaching and learning.
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This would be a good thing from the standpoint of federal finances, since runaway entitlement spending is the most important single factor that drives federal spending, deficits and debt, making it harder to fund other governmental functions.
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Only 5 percent of those polled said race will be the single most important factor in their choice for president, with 11 percent saying it's one of several important factors, and 13 percent indicating race will be a minor factor in their vote.
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And because a great teacher is the single most important factor in a great education, we're asking states to focus on teacher effectiveness and to make it possible for professionals -- like many of the people in this room -- to bring their experience and enthusiasm into the classroom.
"Although a catalyst may appear to be obvious, suicide is never the result of a single factor or event and is likely to have several interrelated causes, " Johnstone said on the group's website soon after news emerged of Saldanha's death.
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Violent crime is undoubtedly the biggest single driver of emigration, the one factor cited by all races and across all professions when people are asked why they want to go.
Malnutrition is associated with over a third of children's deaths and is the single most important risk factor in many diseases (see chart).
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