Stocks, bond yields fall on Greece worries, US data

By Herbert Lash NEW YORK (Reuters) - Global equity markets and bond yields both fell on Friday, as data showed the U.S. economy contracted in the first quarter and as investors were unnerved by mixed signals from Greece's debt talks. Conflicting reports that Athens was close to clinching a reforms-for-cash deal with its creditors pushed German 10-year bond yields down 4 basis points to just under 0.50 percent.