The credit crisis has taken financial regulation into a new era.
The Federal Reserve lent $30 billion to help guarantee the debts of failing investment bank Bear Stearns over the weekend, but it also took a larger, riskier step: deciding to allow other big brokerage firms to borrow directly from the central bank if necessary.
The change marks one of the largest expansions of the Fed's role in its 95-year history, making the government -- ultimately the taxpayers -- the final backstop not just for the nation's banks but for its major investment houses as well.
The emergency action underscores the seriousness of the financial panic affecting Wall Street, which some observers believe holds the threat to collapse the ability of banks and brokerages to borrow and lend. The Fed is expected to follow up today with another large cut in a key short-term interest rate -- perhaps a full percentage point -- intended to make it easier for consumers to borrow.
But quieting the financial panic may require further cuts, and even larger infusions of cash.
"We are talking very, very big numbers," said Nariman Behravesh, chief economist at the economic consulting firm Global Insight.
The tradeoff for the financial services firms may be much stricter federal oversight of their operations than they have experienced.
"It is abundantly clear now, if it was not before, that the idea that markets always regulate themselves is not up to the mark," said Bill Melton, president of Melton Research in Edina and a former Federal Reserve Bank economist.