Investors will track any movement of European leaders in anticipation of the EU summit on Friday, and financial markets will climb and descend according to these movements.

This was the case Monday, when the index stock U.S. Dow Jones has increased by 167 points, perzându her, but half of the gains after the agency financial rating, Standard & Poor's (S & P) has put countries under observation for a possible reduction in the rating of the country, due to increasing difficulty in obtaining

loans, the risk of recession, high public debt and inter-state disagreement on the resolution of sovereign debt crisis, CNBC shows.

"We have four days until we really know what has been achieved in Brussels on Friday. I am optimistic about this meeting, we can accomplish a lot on Friday. Markets will, however, extremely susceptible to any title of newspaper that you said this, but, after all, I think Europe has the possibility (of-ASI solution to the crisis), "said Paul Richards, an official at UBS.

Richards added the show "Closing Bell" (closing bell) television channel CNBC news agency that the main market news was meeting Monday between Angela Merkel, German chancellor, and Nicolas Sarkozy, President of France. They have announced a joint proposal to EU treaty change to allow a closer fiscal union. After the ad agency S & P, European leaders have made a declaration which reaffirmed the joint efforts to take measures necessary for the stability of the euro area. Richards said that a positive result at the summit on Friday would be good for shares and bonds on the periphery of the eurozone countries.

Some anaşişti S & P considers that the warnings are beneficial in that they will urge European countries to develop an action plan as soon as possible.

"I think the main news about Merkel and Sarkozy are. They must create a fiscal agreement. If they succeed and be able to convince the rest of the EU on Friday, that which created the European Central Bank (ECB) to bazooka out and buy bonds on the periphery of the eurozone countries in sufficient quantities. This is what we want markets, "said Richards. He added that this type of agreement will produce a rallying bond states on the periphery of the euro area and the ECB could start buying them even next week.

"We are, somehow, pending a meeting on December 9 to see what an exit," said Alan Ruskin, head of currency strategy for the G-10 for Deutsche Bank. "For what concerns Merkel and Sarkozy, it seems that there are many details to discuss. I had the impression that we are dealing with a complete project, ready to be implemented ". Ruskin said that more than financial rating agencies, European leaders must convince officials that the ECB will be responsible in terms of tax before the institution to implement measures that will expand its balance sheet.