Global stocks edge up on trade hopes; Euro dips after ECB

NEW YORK (Reuters) - A gauge of world equities climbed for a third straight session on U.S. trade hopes on Thursday and the pound and the euro eased after the latest bout of Brexit drama and ECB announcement.In the United States, the Dow and S&P 500 were modestly higher while the Nasdaq showed slight losses. Investors have been cautiously optimistic about U.S.-China trade progress, but nervousness has bred volatility. Over the past two sessions, stock indexes gave up most early gains. In..