Xinhua world economic news summary at 0930 GMT, Aug. 2

TOKYO -- Tokyo stocks plunged Wednesday, with the Nikkei suffering its largest drop this year, amid concerns over the downgrading of U.S. debt and gain-locking moves.

Japan's benchmark Nikkei stock index, the 225-issue Nikkei Stock Average dropped 768.89 points, or 2.30 percent, from Tuesday at 32,707.69, after losing over 800 points at one point. (Japan-Market-Stocks)

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KUALA LUMPUR -- Analy