Third Avenue Management CEO David Barse said on Thursday that the IMF's most recent comments about the U.S. rate hike are just "market noise."
"I think this is just market noise, but it probably doesn't really mean anything for the real market which we participate in," he told CNBC's "Squawk on the Street."
Barse said the Federal Reserve should lift off "and get that over with so that people like us, who are value investors, can just let that noise go away."
Earlier on Thursday the International Monetary Fund said in its annual report that the Fed should hold off on an interest rate hike until the first half of 2016, when wages and inflation pick up.
John Silvia, Wells Fargo chief economist, also said he supports the Fed's raising rates in September since he sees the economy growing and modest inflationary pressure.
"I simply disagree with the IMF," he said in the same interview on CNBC. "I think the economy has enough momentum going forward. I think it's time to normalize interest rates."
A strong jobs report on Friday would probably be taken positively by the market, Silvia said, since it would point to good economic growth. "If you are a long-term investor looking out six months, two years or five years, you still have to be positive on the U.S. economy."
—Reuters contributed to this report.