Enough about John Maynard Keynes. We can be sure the 20th century British economic giant would advise more government spending to spur U.S. economic growth with consumers and businesses so hesitant and short-term interest rates at zero.

What would Milton Friedman, the University of Chicago champion of monetary discipline, do now? What would he say—reversing the charges when he returned a reporter's call, as he always did—if asked about Federal Reserve Chairman Ben Bernanke's imminent move to print hundreds of billions of dollars to buy more U.S. Treasury bonds to put more money into the economy?