The U.S. economy is ready to take off, says BlackRock's Larry Fink, and a push by U.S. banks to make new loans should help lead the way. "Aggressively” stepping up lending, he said, would spur hiring by businesses which would bolster economic growth. Capitalization is not the issue here. "Our banks are the best capitalized institutions in the world," Fink says. "The problem for banks going forward is making sure they originate enough loans." Which, in turn, is also the solution for sparking economic growth. (Video).