World stocks edged higher and the euro ended flat on Wednesday as investors focused on whether the latest meeting of Greek political leaders will finally result in reforms to help the country avoid a messy default.

The euro rose early in the session to $1.3290, its highest level since December 12, before paring gains. It was last unchanged against the dollar.

The reforms, subject of marathon negotiations between Greece and its creditors, aim at securing a 130-billion-euro ($172 billion) rescue from the International Monetary Fund and European Union to avoid an unruly default. It would be a second bailout package for Greece.

Prospects of a deal increased when euro zone finance ministers were summoned to talks in Brussels, even as leaders of the three Greek coalition parties were still discussing with Prime Minister Lucas Papademos the terms of a rescue package.

Repeated delays in talks over a plan for Greece have prompted warnings that the euro can live without Athens, while a messy Greek default could put further strain on the region as well as the global economy.

The question is whether the Greek government can reach agreement on the conditions required to get the second bailout, said James Keegan, chief investment officer of Seix Investment Advisors and portfolio manager of the RidgeWorth Total Return Bond Fund . Greece has too much debt, but it can't grow because the austerity measures are killing them.

MSCI's all-country world index <.MIWD00000PUS>, a leading indicator for global equity portfolios, was last up 0.3 percent, having cut most of the day's earlier gains.

U.S. stocks ended flat to higher, with the Dow hovering at its highest level in nearly four years.

The Dow Jones industrial average <.DJI> gained 5.75 points, or 0.04 percent, at 12,883.95. The Standard & Poor's 500 Index <.SPX> was up 2.91 points, or 0.22 percent, at 1,349.96. The Nasdaq Composite Index <.IXIC> was up 11.78 points, or 0.41 percent, at 2,915.86.

Randy Frederick, director of trading for Charles Schwab in Austin, Texas, said he would use any pullback on Greece as a buying opportunity for stocks. And if the situation there gets resolved, we'll move higher even faster.

Euro zone officials say the full bailout package must be agreed to by Greece and approved by the euro zone, the European Central Bank and IMF before February 15.

BEYOND GREECE

Investors are keen to move past Greece and focus on signs from the world's major central banks they will retain easier monetary policy stances, which should support riskier assets.

The ECB's provision of nearly half a trillion euros in low-rate, long-term funds to banks in December helped prop up risk appetite with a second tender, expected to be similar in size, due at the end of the month.

The ECB and the Bank of England both hold policy meetings on Thursday, with the UK central bank expected to add an extra 50 billion pounds ($79.4 billion) of stimulus via bond purchases.

European shares ended lower. The FTSEurofirst 300 index of top European shares <.FTEU3> was down 0.2 percent.

An Italian government source told Reuters Italy's gross domestic product may have fallen in the fourth quarter of last year, likely more steeply than the 0.2 percent decline posted in the third. That also put pressure on the euro.

Also discouraging on the economic front, Germany reported the steepest drop in exports in nearly three years for December, and the Bank of France said its economy would not grow at all in the first quarter of 2012.

The German data suggested Europe's dominant economy may have contracted more than thought in the fourth quarter of last year, but recent sentiment surveys pointed to only a brief dip.

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German trade balance and export growth:

http://link.reuters.com/wut34s

Asset performance in 2012: http://link.reuters.com/muc46s

Euro zone in graphics http://r.reuters.com/hyb65p

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BRENT CRUDE ENDS HIGHER, U.S. BONDS EASE SLIGHTLY

Brent crude ended higher as hopes for a deal on Greece's debt and tensions between Iran and the West offset data showing rising U.S. stockpiles.

Brent March crude rose 97 cents to settle at $117.20 a barrel, a seventh straight gain. U.S. March crude settled at $98.71, edging up 30 cents.

U.S. Treasuries prices fell slightly after a $24 billion sale of 10-year U.S. government debt - offering a yield above 2 percent - attracted good demand.

The U.S. Treasury Department said it sold the 10-year notes at a high yield of 2.02 percent, with nearly a third of the bids awarded at the high. The benchmark 10-year U.S. Treasury note slipped 1/32, the yield at 1.9804 percent.

Gold fell as investors took profits after the previous session's rally. Spot gold was down 0.7 percent at $1,732.49 an ounce. Gold remained up 11 percent for the year, boosted by the Federal Reserve's commitment to near-zero interest rates.