Central banks 'Kool-Aid pushers' of markets: Roth

The Federal Reserve and other central banks will serve as "key drivers" of stock market performance in 2015, CNBC contributor Carol Roth said on Monday.

"The Fed and central banks around the world are the Kool-Aid pushers, if you will, of the stock market," Roth said on CNBC's "Closing Bell." "And as long as they are bringing Kool-Aid or punch or whatever flavor of the month it is to the punch bowl, I think it would be silly to push back against these central banks."

NYSE New York Stock Exchange traders markets
Brendan McDermid | Reuters

The Fed has held off on raising interest rates as the U.S. economic recovery continues. Roth believes that there is "better than a 50 percent chance" the central bank will not raise rates next year.

Read MoreWhy Greece won't chill markets

CNBC contributor Larry Kudlow, while not ruling out rate hikes, agreed with Roth that the Fed will maintain soft monetary policy.

"I do think the Fed will be easy this year," Kudlow said.

Read MoreWall Street: U.S. government yields will go up in 2015

Earlier on Monday, Kudlow contended that the Fed's quantitative easing program, which ended earlier this year, failed to bring about its intended effect but "didn't do any harm."