What explains poor growth in the UK? The IMF thinks it's fiscal policy

For the UK, and indeed other advanced economies, the most important point in today's IMF World Economic Outlook is not that it further explodes the myth - repeated again yesterday by the Chancellor - that low interest rates reflect policy "credibility" rather than economic weakness, or that it again emphasises that the UK and others could and should loosen fiscal policy in the face of that weakness. The IMF said all this about the UK back in July, as I explained then. Rather, it is that the Fund has radically revised its opinion about just how damaging the impacts of premature fiscal consolidation have been in the UK and elsewhere.

[Update, November 2012: following on from the IMF analysis, we at NIESR have now published the first rigorous quantitative estimates of the impact of coordinated fiscal consolidation in the eurozone. They show that austerity has, indeed, been self-defeating, in the sense that debt-GDP ratios are higher, rather than lower, as a consequence of the premature move to contractionary fiscal policy.]

Back in July, the Fund said that fiscal consolidation had knocked about 2.5% off UK economic growth. This estimate was based on an assumption that the "fiscal multiplier" - the reduction in GDP growth resulting from a reduction in the government's structural budget deficit - was about 0.5.   This estimate was quite similar to that coming out of macroeconomic models like ours at NIESR.  It was somewhat larger than the impact estimated by the Office of Budget Responsibility.  But it was much smaller that the impacts that many of the most credible macroeconomists - Brad Delong and Paul Krugman in the United States, Martin Wolf and Simon Wren-Lewis here - thought likely. [See Krugman here, for example]. It was also significantly smaller than Dawn Holland here at NIESR and colleagues at LSE suggest in the analysis here

Now, in a commendable display of self-criticism, the Fund has gone back and reanalysed the forecasts that it made (as well as those made by the OECD and EU). Its conclusion: 

"In line with these assumptions, earlier analysis by the IMF staff suggests that, on average, fiscal multipliers were near 0.5 in advanced economies during the three decades leading up to 2009. If the multipliers underlying the growth forecasts were about 0.5, as this informal evidence suggests, our results indicate that multipliers have actually been in the 0.9 to 1.7 range since the Great Recession. This finding is consistent with research suggesting that in today’s environment of substantial economic slack, monetary policy constrained by the zero lower bound, and synchronized fiscal adjustment across numerous economies, multipliers may be well above 1"

That is, the Fund is saying: "Delong et. al. were right; we were wrong". They even have a helpful chart, showing that the bigger the fiscal consolidation, the worse growth has been relative to IMF forecasts - implying that the Fund was drastically underestimating the negative impact of fiscal consolidation.  
Why does this matter? Everyone agrees growth since 2010 in the UK has been very disappointing. But there has been much debate about why - was it cutting the deficit too quickly, was it the spike in inflation resulting from commodity price rises, was it the impact on confidence from the eurozone?  Here at NIESR, we have taken the view that it was a combination of all of these - fiscal policy mistakes made a large contribution, but the other factors mattered too. However, others - notably the OBR, as well as Chris Giles in the FT - have argued that fiscal policy didn't explain much of the weakness in growth.   The IMF have now definitively sided with those who think that tightening fiscal policy quickly and sharply had a very large and negative impact. 

Once again, the Fund deserve praise for going back, looking at their forecasts, analysing what went wrong, and saying very clearly "We thought the impact of fiscal consolidation on growth would be relatively small. We got it wrong. "  Will our government, and those of the eurozone, do the same?


cityspiders's picture

"Will our government, and those of the eurozone, do the same?"

This is what we like to call "a rhetorical question", correct?

Mark Allan's picture

I'm not an esteemed economist,I drive trains for a living but one doesn't need to be to work it out that you don't create growth by putting people out of work. You don't go around putting the fear of God into people by telling them we're bankrupt,the card is maxed out etc. Then wonder why no one will spend any money on the high street.
They've created this climate of fear that has killed "the animal spirits" according to Keynes.
Their answer? More of the same,and even more cuts to the least who can afford it.This is madness and its oft quoted but the lunatics really have taken over the asylum!

Steve M's picture

oh the irony

avraam jack's picture

A large part of the problem is that credible economists do not seem interested in running for Public Office.

If every economist good enough to be working at a university ran for office, enough would win that we would see a great improvement in economic policy.

Why do economists fear and lawyers love politics?

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Unknown's picture

Like Bishop Wilburforce, they fear that reality will collide with their brains.

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I was wondering if you could provide any information about when and where this is taking place? As a final-year undergrad student in Econ at Bristol I'd be very excited about the opportunity to attend.



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If every economist good enough to be working at a university ran for office, enough would win that we would see a great improvement in economic policy.

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