KEY POINTS
  • "There's a lot of enthusiasm in markets, but the thing that worries me the most is that people don't seem to be worried," says professor Randy Kroszner.
  • Some economists think the economy is at or near full employment and worry about a possibility of overheating growth.
  • Dallas Fed President Robert Kaplan says, "We're going to overshoot full employment."

Perhaps people should be more concerned about the strong economy — at least that's what former Federal Reserve governor Randy Kroszner says.

"There's a lot of enthusiasm in markets, but the thing that worries me the most is that people don't seem to be worried," Kroszner told CNBC's "Squawk on the Street" on Friday.