China, U.S. sign initial trade pact but doubts and tariffs linger

BEIJING/WASHINGTON (Reuters) - China will boost purchases of U.S. goods and services by $200 billion (153.35 billion pounds) over two years in exchange for the rolling back of some tariffs under an initial trade deal signed by the world's two largest economies, defusing an 18-month row that has hit global growth.Key world stock market indexes climbed to record highs after the deal was signed on Wednesday in Washington, but later stalled on concerns it may not ease trade tensions for long, with..