Paul Krugman’s verdict on Slasher Osborne.

Both the new British budget announced on Wednesday and the rhetoric that accompanied the announcement might have come straight from the desk of Andrew Mellon, the Treasury secretary who told President Herbert Hoover to fight the Depression by liquidating the farmers, liquidating the workers, and driving down wages. Or if you prefer more British precedents, it echoes the Snowden budget of 1931, which tried to restore confidence but ended up deepening the economic crisis.

The British government’s plan is bold, say the pundits — and so it is. But it boldly goes in exactly the wrong direction. It would cut government employment by 490,000 workers — the equivalent of almost three million layoffs in the United States — at a time when the private sector is in no position to provide alternative employment. It would slash spending at a time when private demand isn’t at all ready to take up the slack.

Why is the British government doing this? The real reason has a lot to do with ideology: the Tories are using the deficit as an excuse to downsize the welfare state. But the official rationale is that there is no alternative.

Indeed, there has been a noticeable change in the rhetoric of the government of Prime Minister David Cameron over the past few weeks — a shift from hope to fear. In his speech announcing the budget plan, George Osborne, the chancellor of the Exchequer, seemed to have given up on the confidence fairy — that is, on claims that the plan would have positive effects on employment and growth.

Instead, it was all about the apocalypse looming if Britain failed to go down this route. Never mind that British debt as a percentage of national income is actually below its historical average; never mind that British interest rates stayed low even as the nation’s budget deficit soared, reflecting the belief of investors that the country can and will get its finances under control. Britain, declared Mr. Osborne, was on the “brink of bankruptcy.”

What happens now? Maybe Britain will get lucky, and something will come along to rescue the economy. But the best guess is that Britain in 2011 will look like Britain in 1931, or the United States in 1937, or Japan in 1997. That is, premature fiscal austerity will lead to a renewed economic slump. As always, those who refuse to learn from the past are doomed to repeat it.