G20 heads to Pittsburgh with flat tire on trade

World leaders meeting this week are expected to renew pledges to resist protectionism and finish long-running world trade talks but they have already damaged their credibility on both fronts. President Barack Obama

World stocks climb again, Kiwi surges

World stocks climbed and the dollar fell on Tuesday ahead of the Federal Reserve's two-day policy meeting, with investors' search for higher returns reflected in the New Zealand dollar's surge to 13-month