BlackRock chief Larry Fink negative and low interest rates around the world are crushing savers, and those policies are "going to become the biggest crisis globally."

Fink called on political leaders to step in and provide fiscal reform to complement monetary policy.

"We have become too dependent on central bankers" to boost the global economies, he said, stressing easy money policies were supposed to be a temporary healing. 

"I don't call seven, eight years temporary. ... I don't see how that [still] has a positive impact."

"Over 70 percent of our clients are retirement plans and insurance plans. 

 "Our clients are very worried how they're going to be meet their liabilities" because the yields are so low in the bond market.

CNBC 14 April 2016