Paul Krugman explains:
"Fannie Mae — the Federal National Mortgage Association — was created in the 1930s to facilitate homeownership by buying mortgages from banks, freeing up cash that could be used to make new loans. Fannie and Freddie Mac, which does pretty much the same thing, now finance most of the home loans being made in America.
The case against propping up Fannie and Freddie begins with their peculiar status: although they’re private companies with stockholders and profits, they’re “government-sponsored enterprises” established by federal law, which means that they receive special privileges.
The most important of these privileges is implicit: it’s the belief of investors that if Fannie and Freddie are threatened with failure, the federal government will come to their rescue.
This implicit guarantee means that profits are privatized but losses are socialized. If Fannie and Freddie do well, their stockholders reap the benefits, but if things go badly, Washington picks up the tab. Heads they win, tails we lose.
But here’s the thing: Fannie and Freddie had nothing to do with the explosion of high-risk lending a few years ago.
In that case, however, how did they end up in trouble?
Part of the answer is the sheer scale of the housing bubble, and the size of the price declines taking place now that the bubble has burst. In Los Angeles, Miami and other places, anyone who borrowed to buy a house at the peak of the market probably has negative equity at this point, even if he or she originally put 20 percent down. The result is a rising rate of delinquency even on loans that meet Fannie-Freddie guidelines.
Still, isn’t it shocking that taxpayers may end up having to rescue these institutions? Not really. We’re going through a major financial crisis — and such crises almost always end with some kind of taxpayer bailout for the banking system.
And let’s be clear: Fannie and Freddie can’t be allowed to fail. With the collapse of subprime lending, they’re now more central than ever to the housing market, and the economy as a whole."