James Galbraith has written a very good analysis of the crisis and why the policies being followed in the USA (and, by implication, here) will not work.

I reproduce some extracts here to give you a flavour of the article, but I recommend a read of the full paper in the Washington Monthly–thanks to blog member Warren Raftshol for bringing it to my attention. The emphasis added to some points is mine.

No Return to Normal. Why the economic crisis, and its solution, are bigger than you think.

The deepest belief of the modern economist is that the economy is a self-stabilizing system. This means that, even if nothing is done, normal rates of employment and production will someday return. Practically all modern economists believe this, often without thinking much about it. (Federal Reserve Chairman Ben Bernanke said it reflexively in a major speech in London in January: “The global economy will recover.” He did not say how he knew.) The difference between conservatives and liberals is over whether policy can usefully speed things up. Conservatives say no, liberals say yes, and on this point Obama’s economists lean left. Hence the priority they gave, in their first days, to the stimulus package.

But did they get the scale right? Was the plan big enough? Policies are based on models; in a slump, plans for spending depend on a forecast of how deep and long the slump would otherwise be. The program will only be correctly sized if the forecast is accurate. And the forecast depends on the underlying belief. If recovery is not built into the genes of the system, then the forecast will be too optimistic, and the stimulus based on it will be too small…

Why did the CBO reach this conclusion? On depth, CBO’s model is based on the postwar experience, and such models cannot predict outcomes more serious than anything already seen. If we are facing a downturn worse than 1982, our computers won’t tell us; we will be surprised. And if the slump is destined to drag on, the computers won’t tell us that either. Baked into the CBO model we find a “natural rate of unemployment” of 4.8 percent; the model moves the economy back toward that value no matter what. In the real world, however, there is no reason to believe this will happen. Some alternative forecasts, freed of the mystical return to “normal,” now project a GDP gap twice as large as the CBO model predicts, and with no near-term recovery at all…

Three further considerations limited the plan. There was, to begin with, the desire for political consensus; President Obama chose to start his administration with a bill that might win bipartisan support and pass in Congress by wide margins. (He was, of course, spurned by the Republicans.) Second, the new team also sought consensus of another type. Christina Romer polled a bipartisan group of professional economists, and Larry Summers told Meet the Press that the final package reflected a “balance” of their views. This procedure guarantees a result near the middle of the professional mind-set. The method would be useful if the errors of economists were unsystematic. But they are not. Economists are a cautious group, and in any extreme situation the midpoint of professional opinion is bound to be wrong.

The most likely scenario, should the Geithner plan go through, is a combination of looting, fraud, and a renewed speculation in volatile commodity markets such as oil. Ultimately the losses fall on the public anyway, since deposits are largely insured. There is no chance that the banks will simply resume normal long-term lending. To whom would they lend? For what? Against what collateral? And if banks are recapitalized without changing their management, why should we expect them to change the behavior that caused the insolvency in the first place?…

In other words, Roosevelt employed Americans on a vast scale, bringing the unemployment rates down to levels that were tolerable, even before the war—from 25 percent in 1933 to below 10 percent in 1936, if you count those employed by the government as employed, which they surely were. In 1937, Roosevelt tried to balance the budget, the economy relapsed again, and in 1938 the New Deal was relaunched. This again brought unemployment down to about 10 percent, still before the war…

The New Deal rebuilt America physically, providing a foundation (the TVA’s power plants, for example) from which the mobilization of World War II could be launched. But it also saved the country politically and morally, providing jobs, hope, and confidence that in the end democracy was worth preserving. There were many, in the 1930s, who did not think so.

What did not recover, under Roosevelt, was the private banking system. Borrowing and lending—mortgages and home construction—contributed far less to the growth of output in the 1930s and ’40s than they had in the 1920s or would come to do after the war. If they had savings at all, people stayed in Treasuries, and despite huge deficits interest rates for federal debt remained near zero. The liquidity trap wasn’t overcome until the war ended.

It was the war, and only the war, that restored (or, more accurately, created for the first time) the financial wealth of the American middle class. During the 1930s public spending was large, but the incomes earned were spent. And while that spending increased consumption, it did not jumpstart a cycle of investment and growth, because the idle factories left over from the 1920s were quite sufficient to meet the demand for new output. Only after 1940 did total demand outstrip the economy’s capacity to produce civilian private goods—in part because private incomes soared, in part because the government ordered the production of some products, like cars, to halt…

Third, in the debt deflation, liquidity trap, and global crisis we are in, there is no risk of even a massive program generating inflation or higher long-term interest rates. That much is obvious from current financial conditions: interest rates on long-maturity Treasury bonds are amazingly low. Those rates also tell you that the markets are not worried about financing Social Security or Medicare. They are more worried, as I am, that the larger economic outlook will remain very bleak for a long time…

A paradox of the long view is that the time to embrace it is right now. We need to start down that path before disastrous policy errors, including fatal banker bailouts and cuts in Social Security and Medicare, are put into effect. It is therefore especially important that thought and learning move quickly. Does the Geithner team, forged and trained in normal times, have the range and the flexibility required? If not, everything finally will depend, as it did with Roosevelt, on the imagination and character of President Obama.