* Global stocks fall, oil slides again
* US Treasuries mixed after grim housing, GDP data
* Euro zone government bond yields hit record lows (Updates to close)
By Daniel Bases
NEW YORK, Dec 23 (Reuters) - U.S. and European stock markets slipped on Tuesday after more dismal economic reports from the U.K. and U.S. in particular, and bond yields edged lower.
U.S. existing home sales and prices both fell at a record pace in November [
], while other data confirmed the U.S. economy shrank by 0.5 percent in the third quarter. In addition, U.S. consumer spending fell by 3.8 percent, the biggest drop since 1980. [ ]The reports emphasized the view that global economic conditions are worsening, leading to cuts in energy demand and reductions in holdings of risky assets.
As a result investors bought bonds as they sought the safety of sovereign debt for peace of mind rather than a return on their money.
"The only way out to get out of this mess is to see the housing market improve," said Joe Saluzzi, co-manager of trading at Themis Trading in Chatham, New Jersey.
U.S. existing home sales plunged a record 8.6 percent in November and prices fell a record amount as layoffs and a stock market crash worsened an already grim housing market, the National Association of Realtors reported.
"The bottom line: Bah humbug. Recession, recession," said Jennifer Lee, an economist with BMO Capital Markets in Toronto.
In U.S. stock trading, the Dow Jones industrial average <
> fell 100.28 points, or 1.18 percent, to 8,419.49. The Standard & Poor's 500 Index <.SPX> lost 8.47 points, or 0.97 percent, to 863.16. The Nasdaq Composite Index < > dropped 10.81 points, or 0.71 percent, to 1,521.54.Retailers were among the worst hit ahead of the holiday.
A survey released on Tuesday showed just 38.7 percent of Americans went shopping the final weekend before Christmas versus 41.6 percent last year, marking the lowest turnout in at least six years, according to America's Research Group and UBS.
The S&P Retail index <.RLX> fell 1.39 percent. The share price for Wal-Mart <WMT.N>, the No. 1 global retailer, fell $0.70 or 1.25 percent to $55.29. Clothing chain Gap Inc <GPS.N> dropped $0.35 or 2.66 percent to $12.80.
MSCI world equity index <.MIWD00000PUS> fell 1.41 points or 0.64 percent to 220.12.
Third-quarter data showed the UK economy posted the worst quarterly decline since 1990, shrinking 0.6 percent, while New Zealand's economy contracted by its biggest amount in eight years -- a seasonally adjusted drop of 0.4 percent.
Data on Tuesday showed Spain's GDP contracted 1.5 percent year-on-year between October and December, putting it into recession for the first time in 15 years.
The FTSEurofirst 300 index of leading European shares <
> closed down 1.43 points or 0.18 percent to 808.35.In Europe, oil-related share prices and pharmaceutical companies fell hardest. Total <TOTF.PA>, Royal Dutch Shell <RDSa.L>, Repsol <REP.MC>, and Statoil <STL.OL> fell between 1.3 and 2 percent.
Drug maker Sanofi-Aventis <SASY.PA> closed 4.3 percent lower, after a study comparing the French drugmaker's experimental treatment for abnormal heart rhythms with a standard treatment showed mixed results.
Japanese markets were closed for a holiday.
BOND YIELDS EDGE LOWER
Two- and 10-year euro zone government bond yields briefly touched record lows on the back of the weak global economic data. Light trading volumes exaggerated the price movements.
The two-year euro zone government bond yield fell to fresh record lows of 1.754 percent <EU2YT=RR>. The 10-year yield also hit a record low of 2.916 percent <EU10YT=RR>.
There was weak demand for a record $28 billion auction in five-year U.S. Treasury notes.
"People are balking and demanding higher yields," said George Goncalves, chief Treasury/TIPS and agency strategist with Morgan Stanley in New York.
On the longer-end of the yield curve, the 10-year benchmark U.S. Treasury was unchanged in price, yielding 2.178 percent. Last week the 10-year yield hit 2.04 percent, the lowest since the early 1950's <US10YT=RR>.
Year-end demand for the U.S. dollar helped blunt some of the damage from the weak economic reports. The greenback rose versus a basket of major trading-partner currencies, with the U.S. Dollar Index <.DXY> up 0.09 percent at 81.264 from a previous session close of 81.188.
The euro <EUR=> managed a marginal gain of 0.15 percent at $1.3963 from a previous session close of 1.3942 while the dollar traded up 0.82 percent to 90.89 against the yen from a previous session close of 90.150 <JPY=>.
MSCI's emerging markets stock index <.MSCIEF> fell 11.76 points or 2.07 percent to 555.58.
U.S. crude oil <CLc1> dropped $0.93 or 2.33 percent to settle at $38.98 a barrel. Spot gold prices fell $9.15 or 1.08 percent to $837.95. Copper hit a four-year low of $1.2810 a lb on the New York Mercantile Exchange's COMEX division. (Additional reporting by Natsuko Waki and Rebekah Curtis in London; John Parry and Steven C. Johnson in New York; and Doug Palmer and Alister Bull in Washington)