Lower commodity prices in the U.S. will help export market sales, but the catalyst will be the way monetary policy unfolds.In the last two policy meetings of the Federal Reserve Board, the Fed cut bond purchases back to a pace of about $65 billion per month. This is a reduction of about $10 billion in monthly purchases for two straight months from the $85 billion pace that was in place. It has also started a long-awaited taper of the easy monetary policy that the Fed has been pursuing for the past few years. The question is, how long and how steep will this taper be? The bond purchases were intended to drive down loan rates to stimulate consumer spending and growth and have been paired with the near zero federal fund interest rates since 20...