sentences:  Some economists such as Paul Krugman hold that economies of scale in banks and in other businesses are worth preserving, so long as they are well regulated in proportion to their economic clout, and therefore that "too big to fail" status can be acceptable.The global economic system must also deal with sovereign states being too big to fail.Krugman wrote in January 2010 that it was more important to reduce bank risk taking (leverage) than to break them up.