YELLEN: LABOR MARKET GAINS BOLSTER HER CONFIDENCE ON INFLATION
*YELLEN: DELAYING LIFTOFF TOO LONG RISKS ABRUPT TIGHTENING LATER
*YELLEN: DOWNSIDE RISKS FROM ABROAD HAVE LESSENED SINCE SUMMER
*YELLEN: DATA SINCE OCT. FOMC SHOW LABOR MARKET GAINS
*YELLEN: FISCAL POLICY TO BE POSITIVE FOR GROWTH IN COMING YRS
*YELLEN SEES RISKS TO OUTLOOK AS `VERY CLOSE TO BALANCED'
*YELLEN SAYS SLOWDOWN IN CHINA LIKELY TO BE MODEST AND GRADUAL
*YELLEN: CHINA HAS TAKEN ACTION AND COULD DO MORE IF NEEDED
*YELLEN SAYS HOUSEHOLD SPENDING PARTICULARLY SOLID IN 2015