Idea that certain businesses are so important to the nation, that it would be disastrous if they were allowed to fail. This term is often applied to some of the nation's largest banks, because if these banks were to fail, it could cause serious problems for the economy. By declaring a company too big to fail, however, it means that the government might be tempted to step in if this company gets into a bad situation, either due to problems within the company or problems from outside the company. While government bailouts or intervention might help the company survive, some opponents think that this is counterproductive, and simply helping a company that maybe should be allowed to fail. This concept was integral to the financial crisis of the late 2000s.