* Global share prices down on bank industry concerns
* Bleak U.S. retail sales data lifts government debt
* Dollar benefits from safe-haven flow
By Daniel Bases
NEW YORK, Jan 14 (Reuters) - Grim U.S. retail sales data and concerns that banks need even more money to save them from collapse pulled U.S. and European share prices down on Wednesday and led to buying of safe-haven government debt.
The U.S. dollar was supported by investors buying Treasuries, which also undermined gold prices. Crude oil prices dropped 5 percent due to a surprising rise in U.S. energy inventories, the result of slowing economic demand.
European government bond yields hit their highest levels since the introduction of the euro currency, which was undermined by an expected half-percentage point interest rate cut on Thursday by the European Central Bank, to 2.0 percent.
Bank stocks were hit particularly hard by news that Citigroup Inc <C.N>, the one-stop financial behemoth catering to institutional and retail investors that ushered in a decade-long era of mega-banks, agreed to merge its Smith Barney brokerage unit with Morgan Stanley's wealth management arm.
"You'd think the news on banks is baked in, but there's still a lot of headwinds," said Rich Parker, head of trading at Stanford Group in New York.
Citigroup is expected to shed more assets in a rush to raise capital while isolating bad debts from the rest of the bank. Investors expect a big fourth-quarter loss will be announced on Jan. 22.
Citigroup's stock fell 18.81 percent to $4.79 while Morgan Stanley <MS.N> lost 6.42 percent to $17.64.
In European trade, British bank Barclays <BARC.L> said it was cutting more UK-based jobs in its retail and commercial banking business. Its shares fell 14.4 percent.
HSBC's <HSBA.L> stock fell 9.8 percent after Morgan Stanley analysts said the bank is likely to halve its dividend and may need to raise up to $30 billion in a rights issue.
"The write-downs are starting to really scare people outside of the banking area as well. Is there a balance sheet out there that you can really trust? By all indications it seems the recession is going to be a historically long one," said Parker."
The latest U.S. retail sales data supports that sentiment.
U.S. consumers kept a tighter grip on their dollars in December as the economy deteriorated, causing U.S. retail sales to fall a more-than-expected 2.7 percent.
The data was the latest in a series suggesting the year-long U.S. recession was deepening and could be the longest since the 1981 contraction that lasted 16 months.
Data showed Germany's economy grew at its slowest pace in three years in 2008, with the economy contracting between 1.5 to 2.0 percent in the final three months.
MARKETS
The plunge in banking and financial stocks pulled major stock indices lower, undermining the year-end rally that lifted them more than 20 percent from their November lows.
Relentless waves of bad economic news and uncertainty about the effectiveness of numerous government anti-recession proposals mean rallies are opportunities to take profits.
In midday New York trade, the Dow Jones industrial average <
> fell 253.68 points, or 3.00 percent, to 8,194.88. The Standard & Poor's 500 Index <.SPX> was down 28.96 points, or 3.32 percent, at 842.83. The Nasdaq Composite Index < > was down 48.15 points, or 3.11 percent, at 1,498.31.At the close of European trade, The FTSEurofirst 300 <
> index of top European shares fell 4.3 percent to close at 804.17 points, its lowest close since Dec. 29.However stocks in Japan bucked the downtrend and the benchmark Nikkei edged up 24.54 points to 8,438.45 <
> after falling 4.8 percent in the the previous session.But in a sign of long-term problems for the market, the Tokyo Stock Exchange said foreign investors, long a key source of market energy in Japan, were net sellers of shares in 2008 for the first time in eight years.
The U.S. retail sales data and bank woes helped lift government bonds and the U.S. dollar.
The benchmark 10-year U.S. Treasury note <US10YT=RR> was up 34/32, its yield at 2.1828 percent. In Europe, the two-year Schatz yield yield hit 1.455 percent, the first time since the introduction of the euro currency.
The U.S. dollar gained 0.22 percent to 84.445 against a basket of major trading-partner currencies <.DXY>.
"The retail sales number was not only negative for the U.S. economy, but also negative for risk sentiment. Consequently, it served to extend the dollar's gains as well as bolster demand for the yen," said Michael Woolfolk, senior currency strategist at The Bank of New York Mellon in New York.
Against the Japanese yen, the dollar <JPY=> was down 0.06 percent at 89.08 from a previous session close of 89.130. The euro fell 0.33 percent to $1.3152 from the previous session close of $1.3195.
Adding to bearish sentiment on the euro was a downgrading of Greece's credit rating by Standard & Poor's, as well as reports, later denied, that Irish Prime Minister Brian Cowen said IMF help may be needed if Ireland's economic downturn worsens.
In energy and commodities trading, U.S. light sweet crude oil <CLc1> fell 4.87 percent to $35.94 per barrel and spot gold prices <XAU=> fell 1.35 percent, to $810.05. (Additional reporting by Ellis Mnyandu, Wanfeng Zhou in New York; Lucia Mutikani in Washington; Natsuko Waki, George Matlock and Brian Gorman in London; Elaine Lies in Tokyo; Editing by Dan Grebler)