Billionaire private equity pro and philanthropist David Rubenstein on Monday said stock prices "are not cheap" right now, creating a tough environment for dealmakers looking for bargains.
The co-founder and co-CEO of The Carlyle Group (NASDAQ:CG - News) also told CNBC's " Squawk Box " the U.S. economy is doing "reasonably well," probably growing in the 2 percent to 2.5 percent range this year.
The global investment firm, with $193 billion of assets under management, is opening an office in Silicon Valley. Rubenstein said Carlyle wants to be closer to the center of the technology universe.
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