Martin Wolf: Spare Britain the policy hair shirt (FT.com, May 27 2010)

The UK should tighten fiscal and monetary policy now, in the depths of a slump. That, in essence, is what the Organisation for Economic Co-operation and Development calls for in its latest Economic Outlook. I wonder what John Maynard Keynes would have written in response. It would have been savage, I imagine.

...

Let us translate this proposal into ordinary language: "If you are unwilling to starve yourself when desperately ill, nobody will believe you would adopt a sensible diet when well." But might it not make sense to get better first?

Here are some facts, to keep the hysteria in check: the UK economy is operating at least 10 per cent below its pre-crisis trend; the OECD estimates the "output gap" - or excess capacity - at slightly over half of this lost output; the UK government is able to borrow at a real interest rate of below 1 per cent, as shown by yields on index-linked gilts; the yield on conventional 10-year gilts is 3.6 per cent; the ratio of gross debt to gross domestic product was 68 per cent at the end of last year, against 73 per cent in Germany and 77 per cent in France and an average of 87 per cent since 1855; the average maturity of UK debt is 13 years, according to the International Monetary Fund's Fiscal Monitor; and, yes, core inflation has risen to 3.2 per cent, but that is hardly a surprise, given the large - and essential - sterling depreciation.

Above all, the private sector is forecast by the OECD to run a surplus - an excess of income over spending - of 10 per cent of GDP this year. On a consolidated basis, the UK's private surplus funds nearly 90 per cent of the fiscal deficit. Thus, fiscal tightening would only work if it coincided with a robust private recovery. Otherwise, it would drive the economy into deeper recession. Yes, that is a Keynesian argument. But this is a Keynesian situation.