* Global equities slip on renewed Greece debt jitters
* Euro hits more than one-week low
* Oil slips from 18-month high as dollar strengthens
* Long-dated Treasuries slip before auction (Updates with open of U.S. markets; adds byline, NEW YORK dateline)
By Herbert Lash and Emelia Sithole-Matarise
NEW YORK/LONDON, April 7 (Reuters) - Global stocks slipped and the euro weakened on Wednesday as festering worries about Greece's debt problems led investors to pull back their risk appetite after a recent run-up in prices.
Crude oil slipped from 18-month highs around $87 a barrel after two weeks of gains as the dollar strengthened broadly and copper retreated from Tuesday's 20-month high. For details see: [
] [ ]Wall Street traded choppily around break-even shortly after opening but European shares fell on data that showed the euro-zone economy stalled in the last quarter of 2009.
Zero growth in quarter-over-quarter gross domestic product in the 16-member euro zone highlighted the fragility of the recovery, the European statistics office said. An earlier estimate put GDP growth in the euro zone at 0.1 percent.
MSCI's all-country world index of global equities <.MIWD00000PUS> was off just 0.03 percent, helped by a rise in emerging market shares <.MSCIEF>.
The Dow and the S&P 500 indexes traded slightly lower, and the technology-rich Nasdaq edged higher.
The Dow Jones industrial average <
> was down 25.92 points, or 0.24 percent, at 10,944.07. The Standard & Poor's 500 Index <.SPX> was down 1.65 points, or 0.14 percent, at 1,187.79. The Nasdaq Composite Index < > was up 3.09 points, or 0.13 percent, at 2,439.90.The latest round of jitters about Greece came after the Greek finance minister said the country's banks, hit by a series of credit rating downgrades linked to its debt crisis, had asked the government for more financial support. [
]The Central Bank of Greece said non-performing loans in the Greek banking system rose further in the fourth quarter of 2009, bringing the full-year ratio to 7.7 percent. [
]"One of the key dynamics is a renewal of a tired and familiar ... (negative) story out of Greece," said Craig Peckham, equity trading strategist at Jefferies & Co in New York.
The euro dropped to a more than one-week low against the dollar over concerns about Greece's ability to tackle its debt crisis. [
]The euro has been under pressure following reports that Greece wanted to renegotiate a deal reached last month over joint European Union-International Monetary Fund aid. [
]The euro <EUR=> was down 0.26 percent at $1.3363 and the dollar was up against a basket of major currencies, with the U.S. Dollar Index <.DXY> up 0.20 percent at 81.547.
Greece denied the report, but the spread on the yield between Greek and German government bonds exceeded 4 percentage points on Tuesday, the widest since the euro's launch.
"The euro is underperforming. As long as these issues of confidence remain in the market, the euro will have no ability to rally," said Sacha Tihanyi, currency strategist at Scotia Capital in Toronto. "Definitely the risk is to the downside still."
Long-dated U.S. Treasuries prices fell ahead of a $21 billion debt auction, but short-term and medium-term Treasuries made modest gains as weaker stocks and concern about Greece's fiscal plans enhanced the appeal of the safe-haven debt. [
]The benchmark 10-year U.S. Treasury note <US10YT=RR> was down 1/32 in price to yield 3.96 percent.
U.S. light sweet crude oil <CLc1> fell 19 cents to $86.65 a barrel.
But gold rose to a five-week high, near record levels in euro terms, on strong physical demand and as investors, worried by the outlook for the euro-zone economy, flocked into hard assets. [
]Spot gold prices <XAU=> rose $9.30 to $1,143.00 an ounce. (Reporting by Edward Krudy, Wanfeng Zhou, Ellen Freilich in New York; Christopher Johnson, Rebekah Curtis in London; writing by Herbert Lash; Editing by Padraic Cassidy)