* Global stocks stumble on weak U.S. manufacturing data
* Dollar slides across board, hits 2-month low vs euro
* Government debt rises as data sparks deflation fears
* Oil drops on economic worries despite looming OPEC cuts (Adds close of U.S. markets)
By Herbert Lash
NEW YORK, Dec 15 (Reuters) - The dollar weakened and government debt prices rose on either side of the Atlantic on Monday after New York state manufacturing data pointed to tumbling demand, helping to push equity markets lower.
Oil slid almost 4 percent as the deepening economic fears overcame expectations the Organization of Petroleum Exporting Countries would agree to its biggest supply cut ever when the cartel meets in Algeria this week to prop up slumping prices.
The euro rose more than 2 percent to a two-month high above $1.37 against the dollar on speculation the Federal Reserve will cut interest rates to a record low near zero on Tuesday, a move that would further erode the greenback's yield appeal.
The urgency for the Fed to take more bold steps intensified after manufacturing data for December provided evidence of deflation. The prices paid index in the New York Fed's "Empire State" manufacturing report posted a record decline.
"We are still getting poor economic data," said Bernard McAlinden, market strategist at NCB Stockbrokers in Dublin.
"The New York manufacturing index was weaker again in December and some earning figures are coming out negative. There are worries the market has not yet priced in all of the concerns about the economies and earnings."
The worsening economy led investors to pile into cash and other safe-haven assets, pushing the yield on the 30-year U.S. Treasury bond below 3 percent for the first time in 50 years.
The one-month Treasury bill rate <US1MT=RR> briefly traded below zero percent, suggesting investors were willing to suffer small losses as long as they believed most of their principal is shielded from the steep losses in many investor portfolios.
Buyers "are pretty much telling the market that they don't think we are near a bottom and the current recession will be with us for a while," said Kevin Giddis, head of fixed-income sales, trading and research at Morgan Keegan in Memphis.
"It doesn't seem to matter how much the Treasury brings to market because investors are so worried about the stability of the financial system that they are willing to accept zero return on their investment," he said.
Renewed worries about a deep recession weighed on U.S. and European equities, with banks the big losers. A 7.5 percent slide in JPMorgan <JPM.N> led the Dow lower while BNP Paribas <BNPP.PA> lost 10 percent and led shares lower in Europe.
Investors worried about potential heavy losses ahead of results from Goldman Sachs <GS.N> and Morgan Stanley <MS.N> after Merrill Lynch downgraded JPMorgan and forecast a fourth-quarter loss for the bank.
With the holiday shopping season in full swing, fears about weak consumer spending dragged on shares of Apple <AAPL.O>. Goldman Sachs cut its rating on the maker of the iPod and iPhone and its shares fell 3.6 percent.
The Dow Jones industrial average <
> slid 65.15 points, or 0.75 percent, to 8,564.53. The Standard & Poor's 500 Index <.SPX> fell 11.16 points, or 1.27 percent, to 868.57. The Nasdaq Composite Index < > shed 32.38 points, or 2.10 percent, to 1,508.34.Banks took the most points off leading indices as a growing list of financial groups acknowledged exposure to the alleged $50 billion fraud involving Wall Street trader and investment manager Bernard Madoff.
The pan-European FTSEurofirst 300 <
> index of top European shares ended down 0.3 percent at 827.25.The benchmark 10-year U.S. Treasury note <US10YT=RR> rose 17/32 in price to yield 2.51 percent, while the 2-year U.S. Treasury note <US2YT=RR> was flat to yield 0.75 percent.
The 30-year bond <US30YT=RR> jumped 63/32, or 1-31/32 in price, while its yield slid 2.96 percent.
The dollar started to respond negatively to concerns about further weakness in the U.S. economy, analysts said, after the weak manufacturing data caused an exodus from risky positions.
Investors shunned the greenback amid fears a failure of one or more of the Big Three U.S. automakers could exacerbate a year-long recession and drag down other companies.
"The dollar is selling off aggressively going into the rate decision as traders realize that after tomorrow, the dollar will either be the lowest- or second-lowest yielding G10 currency," said Kathy Lien, director of currency research at GFT Forex in New York.
The euro <EUR=> jumped 2.39 percent to $1.3691.
The dollar fell against a basket of major currencies, with the U.S. Dollar Index <.DXY> down 2.03 percent at 82.011.
Against the yen, the dollar <JPY=> fell 0.30 percent to 90.83.
Oil briefly topped $50 a barrel before tumbling to settle under $45 a barrel as dealers eyed stock market losses even as OPEC members agreed on the need to cut output, according to the cartel's president, Chakib Khelil, who spoke to reporters in Oran, Algeria.
Saudi Arabia, the world's biggest exporter, cut its supply by 8 percent and this had affected the market, he said.
U.S. crude <CLc1> fell $1.77 to settle at $44.51 a barrel, off a session high of $50.05. London Brent crude <LCOc1> settled down $1.81 at $44.60 a barrel.
Gold futures rallied to a two-month high above $840 an ounce as the dollar slumped and an expected Fed rate cut prompted investors to pour funds into the bullion market.
The February gold contract <GCG9> jumped $16 to settle at $836.50 an ounce in New York.
Asian stocks climbed 3.4 percent, according to MSCI's index of Asia-Pacific stocks outside Japan <.MIAPJ0000PUS>, on renewed hopes the U.S. automaker industry would be rescued. Japan's Nikkei share average <
> rallied 5.2 percent. (Reporting by Leah Schnurr, Richard Leong, Wanfeng Zhou and Matthew Robinson in New York, and Joanne Frearson, Ian Chua, Jane Merriman and Jan Harvey in London; writing by Herbert Lash; Editing by Jan Paschal)