Stocks, dollar steady; investors eye earnings, U.S. policy

By Sinead Carew NEW YORK (Reuters) - The U.S. dollar edged higher and stocks gained ground on Wednesday after the top U.S. monetary policy official spoke, but investors voiced caution over how U.S. policy will develop under Donald Trump's presidency two days before his inauguration. Oil futures tumbled, dragging down the energy sector index, which was one of the biggest weights on the S&P 500. U.S. Treasury yields rose after remarks by U.S. Federal Reserve chair Janet Yellen were released an