GLOBAL MARKETS-Shares flat as policy optimism cools(Update)

NEW YORK: Global shares lost steam on Wednesday and traded little changed, while the euro fell as a lack of details prompted investors to tone down optimism for early central bank action to tackle the euro zone debt crisis.

Risky assets began rising on Friday after U.S. jobs data eased concerns about global growth but supported hopes of further policy easing by the Federal Reserve. Last week's signal by European Central Bank President Mario Draghi that it may ease borrowing costs for Spain and Italy provided further optimism.