Krugman points out the risks for the U.S. economy as the U.S. loses export competitiveness with the euro reaching parity with the dollar. The huge shift from $1.50 to the dollar at one point to parity gives Europe a sudden strong boost. Europe needs the boost to escape a deflationary trap, and there is little that can be done for capital flows and exchange rates, says Krugman. He points out that many Federal Reserve governors were clueless of the impact this could have on U.S. growth, sanguinely assuming the U.S. would boost growth in 2015. Better says Krugman for the Fed to be very careful about raising rates at a time when wage growth is sluggish, and inflation low.