Updated from 10:48 a.m. EST with closing European stock market levels.By Carlo Piovano, Associated Press LONDON -- Hopes that U.S. politicians will be able to reach a deal on raising the government's debt limit, avoiding the risk of a disastrous default, supported global markets on Monday, when Wall Street will remain closed for a holiday. Congress must agree by the end of February to increase the limit on how much the U.S. can borrow so the government can service its debt. If it doesn't, the country could default, which would deal a heavy blow to global financial markets and undermine confidence in the world's largest economy. The Republicans appear ready to raise the debt ceiling temporarily and have also backed away from their insistence on deep spending concessions in exchange for a deal. The signs of compromise encouraged investors to buy into stock indices, many of which are near multiyear highs. "Although this again could be seen as another round of political battle, any progress to avoid immediate dangers will likely be seen as positive by the market," said Gary Yau, analyst at Credit Agricole CIB, in a report to investors. Britain's FTSE 100 closed Monday up 0.43% to 6,180.98 while Germany's DAX had advanced 0.36% to 7,729.80. France's CAC-40 ended the day up 0.2% to 3,749.79. U.S. stock and bond markets are closed for Martin Luther King, Jr. Day. Dickie Wong, executive director of research at Kingston Securities in Hong Kong, said he was optimistic that an agreement on the U.S. debt ceiling would be reached because of the high price tag attached to failing to do so. "Both parties will find some kind of solution because they all know that the debt ceiling will have to be increased," Wong said. "At the very last minute, they will sort it out." Earlier in Asia, markets were more cautious, with Japanese shares hit hard by a rise in the yen. The Nikkei 225 fell 1.5% to close at 10,747.74. The Bank of Japan began a two-day policy meeting and has been under pressure from the new government to take more aggressive steps to fight the long deflationary slump in the world's third largest economy. Some analysts expect the bank to expand its asset-purchasing program and set an inflation target.