A one-word change in Yellen's remarks could have big implications for interest rates

Federal Reserve Chair Janet Yellen's increasing concern over low and falling inflation helped US stock markets hit record highs last week.
Yellen testified before Congress for two days, and Wall Street found enough concern that inflation might not in fact head back up toward the Fed's 2% target to justify renewed market bullishness.
Yellen, as she has in other statements recently, told lawmakers she expected low inflation to be transitory. "Temporary factors appear to be at work," she said. "It