Jump-starting economic growth has relied too much on the Federal Reserve and not enough on fiscal policy, said French economist Thomas Piketty, author of the book on wealth inequality "Capital in the Twenty-First Century."
"Those who are gaining from all this printing of money are not the people that you'd like to gain," Piketty said Monday on CNBC. "You certainly need to ask more of these top income groups who got between two-thirds and three-quarters of aggregate income growth over the past 30 years in this country."
In the interview on CNBC's "Squawk Box," he did acknowledge the important role the Fed, and central banks around the world, played in preventing a complete collapse of the financial system following the 2008 crisis. "[But] we've been asking too much of creative monetary policy."