Central banks won't be able to prevent an economic downturn, expert says

Central banks around the world have been responding to suggestions of an economic downturn, with some countries turning to negative rates. Jean Boivin, head of the BlackRock Investment Institute, Peter Boockvar, chief investment officer at Bleakley Advisory Group, and CNBC's Steve Liesman join "Squawk Box" to discuss.
Thu, Aug 15 20198:48 AM EDT