It will raise doubts about the system's ability to capitalise on its successes when it wants to innovate rather than just catch up, and to correct itself if it takes a wrong turn.

ECONOMIST: The visible hand

It's something I'll correct, but it just takes time.

WSJ: Jets' Sanchez, Smith not sharp early in QB battle

PaulDeba, You are absolutely correct in the lead time it takes to develop a business internationally.

FORBES: Netflix: Bull Case Trumps Bear Case For This Stock

Patients are scored on how long it takes to answer and on how many answers are correct.

BBC: Memory test spots early Alzheimer's

But if correct, the theory would explain why antidepressants take so long to work: It takes time to grow new brain cells.

FORBES: Think Happy