Explainer: What the U.S. Federal Reserve is watching this year

The U.S. Federal Reserve is expected to keep interest rates unchanged when it wraps up its first policy meeting of the year on Wednesday.The U.S. central bank is currently in a holding pattern after cutting interest rates three times last year to boost the economy in the face of threats posed by slowing global growth and the U.S.-China trade war.The U.S. economy has added more than 20 million jobs since emerging from recession in 2009, and the unemployment rate is currently near a 50-year low at