CBO warns on helicopter

CBO: 

Greater Chance of a Fiscal Crisis. A large and continuously growing federal debt would increase the chance of a fiscal crisis in the United States. Specifically, investors might become less willing to finance federal borrowing unless they were compensated with high returns. If so, interest rates on federal debt would rise abruptly, dramatically increasing the cost of government borrowing. That increase would reduce the market value of outstanding government securities, and investors could lose money. The resulting losses for mutual funds, pension funds, insurance companies, banks, and other holders of government debt might be large enough to cause some financial institutions to fail, creating a fiscal crisis. An additional result would be a higher cost for private-sector borrowing because uncertainty about the government’s responses could reduce confidence in the viability of private-sector enterprises.

 There is a limit to the risk that Goldman-Sachs is willing to bear.