El discurso de Janet Yellen, el cierre de Jackson Hole y el sector eléctrico

U.S. Federal Reserve Chair Janet Yellen speaks at the University of Massachusetts in Amherst, Massachusetts September 24, 2015. Yellen said on Thursday she expects the U.S. central bank to begin raising interest rates later this year as long as inflation remains stable and the U.S. economy is strong enough to boost employment. REUTERS/Mary Schwalm