Now comes the hard part.
With congressional passage of the bailout bill Friday, the financial industry's focus will shift to the mechanics of the deal: How exactly does the government plan to spend up to $700 billion to buy troubled loans from banks?
The measure gives the Treasury Department up to 45 days to set up the acquisition system, and so far Treasury Secretary Henry M. Paulson has said little about how he planned to implement his new authority. In a statement Friday, Paulson said Treasury would move rapidly but "methodically" to use its "broad set of tools."
Securities experts say the system needs to minimize the possibility that certain firms would be favored at the expense of others -- especially given Paulson's ties to Wall Street as the former chairman of Goldman Sachs Group Inc.
"Someone who controls $350 [to] $700 billion can determine who survives and who doesn't," said Lawrence E. Harris, a finance professor at USC and the former chief economist of the Securities and Exchange Commission. "That's a massive amount of power that has the potential for, if not fraud, then favoritism and blind mistakes."
So far, the most detailed indications of Paulson's intentions came in his testimony last month before the Senate Banking Committee.
At that time, he said Treasury would hire five to 10 outside asset managers, presumably from Wall Street, and suggested that one possible approach would entail financial institutions bidding against one another to offer their troubled assets to the government. In one scenario, known as a reverse auction, the companies would reduce their bid prices until they hit a mark the government would accept.
The agency would do "a certain amount of experimentation," Paulson said.
Pricing the assets
Still unknown is how Treasury might compensate its outside asset managers. One investment firm, Newport Beach-based Pacific Investment Management Co., known as Pimco, offered to conduct the auctions for free -- if its competitors agreed to do the same. Treasury has not publicly responded.
Harvard Law School professor Lucian A. Bebchuk suggested in a recent paper that the government divide its fund into, say, 20 equal portions and promise the manager of each a set percentage of the profit generated by his or her purchases over time.
"The competition among these 20 funds would prevent the price paid for these mortgage assets from falling below fair value," he wrote, "and the fund managers' profit incentives would prevent the price from exceeding fair value."
It isn't known whether Treasury will try to give the asset managers specific guidelines on pricing, although both Paulson and Federal Reserve Chairman Ben S. Bernanke have argued that the troubled mortgage loans owned by banks would be worth more if they could be held to maturity than if they were forced onto the market now in a fire sale.
That gives the Treasury a rationale for paying banks more than current valuations, on the assumption that it will make a profit down the line. But such prices might expose the Treasury to charges that it is unfairly subsidizing the banking industry with overpayments.
Economists, bond traders and securities brokers say the process is certain to be vastly more complicated than a simple auction. The reason is that the assets to be purchased are a far cry from the objects customarily sold on EBay or, for that matter, the complex financial instruments traded on futures exchanges.
As a result, USC's Harris points out, questionable deals could easily slip under the radar. "If a security's worth $10 million and you pay $30 million for it, who'd ever find out?"
On the selling block will be at least 100,000 individual mortgage-backed bonds and other troubled securities along with a larger number of individual mortgage loans, according to a recent report by NERA Economic Consulting.
Before making their purchases, trading experts say, Treasury officials or their agents will have to develop a working model of the exotic mortgage securities' true value -- what they're worth given their probable cash flow to maturity.
"They're extremely complex," said Campbell R. Harvey, a finance professor at Duke University. "To get this operational is not going to be quick, and there are many layers of execution risk."
The so-called mortgage-backed securities that have pushed some of the nation's biggest financial institutions to collapse consists of home loans that were bundled together and sold to investors. Each security is a unique package of loans from different parts of the country, with different borrower characteristics. The potential for unpleasant surprises is ever-present.
"You're always worried that the person selling it knows more than you do, that they've seen something in the cash flows and they know a problem's brewing," said Brad W. Setser, a former Treasury official who is now a fellow at the Council on Foreign Relations.