Federal Reserve Chair Janet Yellen, speaking at a news conference in Washington on Thursday, said the U.S. economy has been performing well but the global outlook is more uncertain.
Federal Reserve Chair Janet Yellen testifies before the Senate Banking Committee in July. This week, Yellen and other policymakers are weighing the Fed's first rate increase in nine years.
A Chinese worker is seen at a construction site in Beijing. Economic changes in China and in other places have reduced demand and prices for commodities like the metal in the building's structure.