NEW YORK, Dec 2 (Reuters) - Wall Street opened little changed on Thursday as bets on a stronger U.S. economy were offset by disappointment over unmet expectations of bond purchases from the European Central Bank.
* The Dow Jones industrial average gained 18.99 points, or 0.17 percent, to 11,274.77. The Standard & Poor's 500 Index added 2.04 points, or 0.17 percent, to 1,208.11. The Nasdaq Composite Index rose 3.95 points, or 0.15 percent, to 2,553.38.