* MSCI world equity index ticks down to 310.17
* Asian stocks down, Europe mixed as bailout eyed
* Money markets still stressed; dollar falls broadly
By Natsuko Waki
LONDON, Sept 25 (Reuters) - World stocks steadied, the dollar fell across the board and the cost of borrowing dollars in the money market remained high on Thursday as anxiety over a $700 billion bailout for the U.S. financial system persisted.
Stocks fell in Asia, while European bourses were mixed with investors on tenterhooks as negotiation on the U.S. government plan dragged on.
Congress looked close to reaching a deal on the rescue package to tackle the worst financial crisis since the Great Depression and President George W. Bush has called an emergency meeting to hammer out details.
But even if the bailout is passed, investors were unsure how that would prevent the U.S. economy from slowing further after this month's turmoil led to the collapse of Lehman Brothers collapse and the bailout of Fannie Mae, Freddie Mac and AIG.
"There is still uncertainty about U.S. Treasury's bail out phase. There needs to be quick action, it is important that investors know what is going to be done about it as the alternatives are too dire," said Bernard McAlinden, market strategist at NCB Stockbrokers.
The pan-European FTSEurofirst 300 index <
> rose 0.4 percent, while shares in London < > and Asia <.MIAP0000PUS> fell.MSCI main world equity index <.MIWD00000PUS> was slightly lower on the day. U.S. stock futures <SPc1> fell around a quarter percent.
TENSIONS
As negotiation dragged on, tensions persisted in the money market even as central banks injected billions of dollars of liquidity to keep the interbank system afloat.
In early European trading, three-month interbank dollar deposit rates were indicated at a 4.29-5.29 percent range <USD3MD=>, at least 225 basis points above the Federal Reserve's benchmark interest rate of 2 percent.
The closely-watched TED spread -- or the difference between market-based dollar rates and three-month U.S. government borrowing rates -- fluctuated in a range of 300 and 420 bps.
The spread ballooned last week to almost 500 bps, the widest in over a quarter of a century.
"It is quite remarkable that even though the money markets have been seized up for nearly a fortnight, there has been no further major failure of a financial institution -- despite immense and practically unprecedented stresses," Morgan Stanley said in a note to clients.
"This in itself might be seen as evidence of the system's improved ability to withstand shocks, or at least of the central banks' improved response, and may therefore eventually become a source of renewed confidence."
The dollar <.DXY> fell 0.6 percent against a basket of major currencies while the euro rose 0.7 percent to $1.4713 <EUR=> as doubts emerged as to how to finance the rescue package and concerns grew over the economy.
In their testimonies this week, Federal Reserve Chairman Ben Bernanke and Treasury Secretary Henry Paulson warned of major damage to the economy and the financial system if Congress did not move quickly on the bailout.
"They had to talk (down the economy) in a way they haven't done in the last couple of months to explain why they want to spend all this money and that has put some pressure on the dollar," said Lutz Karpowitz, FX strategist at Commerzbank.
The December Bund future <FGBLc1> fell 24 ticks.
Emerging sovereign spreads <11EMJ> tightened 2 basis points while emerging stocks <.MSCIEF> fell 0.6 percent.
U.S. light crude <CLc1> rose 0.3 percent, helped by a weaker dollar. Gold <XAU=> rose to $891.65 an ounce. (Additional reporting by Simon Falush, editing by Mike Peacock)