In a recent Wall Street Journal survey, 30 private economists said they feared the Federal Reserve would wait too long before raising short-term interest rates, while only three said they feared the Fed would move too early. Will the Fed fall behind the curve and keep interest rates too low for too long as the economy strengthens? Fed Chairwoman Janet Yellen and academic papers presented at the meeting will focus on labor markets, which are improving rapidly even though U.S. economic growth has been sluggish and erratic.