Some of the rising prevalence of A.D.H.D. is doubtless driven by the pharmaceutical industry, whose profitable drugs are the mainstay of treatment.
While some of the game's sales are doubtless driven by the unending river of add-on titles, the numbers point to unprecedented success.
They've sold nearly a million units this quarter, doubtless driven by the tiny, cheap, but feature-rich and popular Centro.
Realistically, though, her only political choice is a "grand coalition" with the opposition left-leaning Social Democrats, who will doubtless drive a hard bargain over economic and social justice issues, like a minimum wage, help for the unemployed, gay marriage or child and health care before agreeing to any new pact.
This event has doubtless also driven Iran's leadership to think about its options, which have become limited after the regime, which had formed an important linking point for it, has begun to fall apart.
Doubtless they were also driven by selfish motives, such as ego or profit.
There are doubtless other earthquake cycles on the planet, driven by phenomena not considered in the paper.
Jack Straw, the home secretary, is doubtless relieved that his own tough stance on drugs has driven his opposite number to a policy so extreme that her own colleagues cannot countenance it.
"Compliance will doubtless suffer as fees drive people away from the probate courts and, more broadly, from Connecticut," Knierim wrote.
It's up in Vancouver, BC, so although I can just drive up, doubtless many international men of hackery will be hopping a plane to take their shot in this lucrative contest.
Their purchases, goes the argument, have driven yields down.Doubtless there is something, perhaps a lot, to be said for both arguments.
