What the world needs right now is a rescue operation. The global credit system is in a state of paralysis, and a global slump is building momentum as I write this. Reform of the weaknesses that made this crisis possible is essential, but it can wait a little while. First, we need to deal with the clear and present danger. To do this, policymakers around the world need to do two things: get credit flowing again and prop up spending.

The first task is the harder of the two, but it must be done, and soon. Hardly a day goes by without news of some further disaster wreaked by the freezing up of credit. As I was writing this, for example, reports were coming in of the collapse of letters of credit, the key financing method for world trade. Suddenly, buyers of imports, especially in developing countries, can’t carry through on their deals, and ships are standing idle: the Baltic Dry Index, a widely used measure of shipping costs, has fallen 89 percent this year.

What lies behind the credit squeeze is the combination of reduced trust in and decimated capital at financial institutions. People and institutions, including the financial institutions, don’t want to deal with anyone unless they have substantial capital to back up their promises, yet the crisis has depleted capital across the board.

The obvious solution is to put in more capital. In fact, that’s a standard response in financial crises. In 1933 the Roosevelt administration used the Reconstruction Finance Corporation to recapitalize banks by buying preferred stock—stock that had priority over common stock in terms of its claims on profits. When Sweden experienced a financial crisis in the early 1990s, the government stepped in and provided the banks with additional capital equal to 4 percent of the country’s GDP—the equivalent of about $600 billion for the United States today—in return for a partial ownership. When Japan moved to rescue its banks in 1998, it purchased more than $500 billion in preferred stock, the equivalent relative to GDP of around a $2 trillion capital injection in the United States. In each case, the provision of capital helped restore the ability of banks to lend, and unfroze the credit markets.

A financial rescue along similar lines is now underway in the United States and other advanced economies, although it was late in coming, thanks in part to the ideological tilt of the Bush administration. At first, after the fall of Lehman Brothers, the Treasury Department proposed buying up $700 billion in troubled assets from banks and other financial institutions. Yet it was never clear how this was supposed to help the situation. (If the Treasury paid market value, it would do little to help the banks’ capital position, while if it paid above-market value it would stand accused of throwing taxpayers’ money away.) Never mind: after dithering for three weeks, the United States followed the lead already set, first by Britain and then by continental European countries,…

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Copyright © 2009, 1999 by Paul Krugman