The impact of austerity in the UK

When they do their forecast evaluation report, the OBR also look at the impact of fiscal policy on GDP. Here is the relevant chart from their report published yesterday.

There is a useful innovation compared to previous years, which comes close to an something I suggested a few months ago. The orange bar shows the impact of fiscal measures implemented in that year. The total effect of fiscal policy is this plus the impact of previous fiscal policy actions unwinding.

Suppose for example that fiscal policy reduced GDP by 1% in year 1, but its impact on the level of GDP was expected to decay by half in year 2. If no fiscal policy was enacted in year 2, then fiscal policy in year 1 would increase growth in year 2 by 0.5%. Why might the impact of fiscal policy on the level of GDP decay over time? The obvious explanation is that monetary policy ensures that it does by stabilising the level of GDP. This assumption is problematic when interest rates are stuck at their lower bound, which is why it is useful to publish the within year estimates as well as the total estimates,

You can see when this matters from 2012 onwards. We have a run of years where the total impact of austerity on growth is zero or positive, but only because of the unwinding of previous austerity. If monetary policy, or anything else, had not been able to offset earlier fiscal tightening, then instead the impact of austerity would be to reduce growth in all those years. In that (extreme) case the level of GDP in 2016/17 would be over 4% below what it would otherwise have been without any fiscal tightening from 2010/11.

As the OBR’s assessment of fiscal impact is in their publication on forecast errors, they naturally talk about whether there is any relationship between the two. This year they included this chart.

It is important to understand what we are looking at here. It is not whether there is a correlation between fiscal consolidation and GDP. As we have seen the OBR assumes there is, and indeed their calculations were the source of my estimate that the average household had by 2013 lost a total of £4,000 worth of resources as a result of austerity. The foolishness of austerity in 2010 was not that the OBR underestimated its impact, but that it left us vulnerable to negative shocks because interest rates were at their lower bound. The shock that hit in 2012 was the Euro crisis and the impact of austerity there.

What the chart above might tell us is whether the OBR have in fact underestimated the impact of austerity i.e the numbers in Chart E are too small. Each year there are hundreds of potential reasons for forecast errors, of which underestimating the impact of austerity is just one. So the best we can expect, if the OBR are underestimating the impact of fiscal policy, is a negative relationship going through zero between the two variables in Chart D but with lots of random variation on top. That is what we see in Chart D.

Austerity will only end when our leaders start being honest

Austerity was the underlying motivation for starting this blog. Sometimes I think everything that I, Paul Krugman and many others have written over the last six or more years has fallen on deaf ears. Take two recent pieces of evidence: this FT article by Nicholas Macpherson, ex permanent secretary at the Treasury, and this interview of the Chancellor by Andrew Marr.

In talking about Osborne’s fiscal consolidation that began in 2010, Macpherson says: “With hindsight, there was a case for going further faster.” His rationale is that the public like a dose of austerity, but tire after a time. At no point does he mention the economy (a recovery that stalled from 2010 to 2013, and then only started growing at trend thereafter), or monetary policy (interest rates were stuck at their lower bound). His desire for a shorter, sharper fiscal shock would have almost certainly produced a second recession.

I calculated that the fiscal consolidation that did take place cost the average household at least £4,000 in lost resources. This is based on OBR numbers, and assumes (as the OBR does) that the economy recovers quickly from any fiscal consolidation. This latter assumption looks very shaky indeed. Once you stop making it, the costs of austerity become horribly large. Not a word about this from Macpherson, which allows him to make the ridiculous argument that we should have had a shorter sharper consolidation.

One of the other ridiculous things Macpherson says is that, from 2010 to 2016, the UK did not even experience austerity. He justifies this because the debt to GDP ratio over this period rose. I’ve heard similar things in comments on my blog, presumably because of what Conservative politicians or their apologists say in the press. The statement confuses levels with rates of change, whether you are talking about the impact on the economy or on individuals. This is first year undergraduate stuff.

Philip Hammond said in his interview that a deficit of 2.5% is not sustainable. The normal definition of sustainability is a deficit that keeps the debt to GDP ratio constant. The current debt to GDP ratio is 86.5%. To work out roughly what the sustainable deficit is, divide the debt level by 100 and multiply that by the expected growth rate of nominal GDP. That means that today a deficit of 2.5% of GDP would be sustainable as long as nominal GDP grew at about 3%. So his statement that a deficit of 2.5% is not sustainable simply looks wrong.

You could rationalise this by saying that he believes our current debt to GDP level is not sustainable, and that therefore he wants to reduce it, but if that is what he means he should say so. Instead it seems that he wants to pretend that the government is like a household, and so therefore there is some reason why a deficit of zero is desirable. Of course Hammond does not mention interest rates either. And he knows that, in an interview like this, he can get away with anything involving economics or numbers.

Austerity has been supposedly dying since after the Brexit vote, but that just reflects misleading or dishonest reporting. As Torsten Bell says, for most people austerity means cuts to public spending, and for public sector workers and those on low incomes there is more austerity to come. Hammond also said Labour’s proposed fiscal policy would be “catastrophic for the country”. I suspect this kind of nonsense hyperbole, frequently invoked by the right wing press, has now become counter-productive. In reality at the heart of Labour’s fiscal policy is a fiscal rule which takes the government’s role in the economy seriously, rather than reduce it to the budget of a Swabian housewife. I cannot wait for the day that becomes the UK government’s fiscal rule, and we can move discussion of UK fiscal policy away from numbers 'not adding up' and back into the 21st century.

When is an economic recovery not a recovery?

This post may seem to be unusually pedantic, but please be patient

What do we mean when we say the economy is recovering from a recession? Do we mean it has started growing again, or do we mean it is returning to its pre-recession trend? Brief research suggests there is no standard definition, but Wikipedia is clear it is the latter:

“An economic recovery is the phase of the business cycle following a recession, during which an economy regains and exceeds peak employment and output levels achieved prior to downturn. A recovery period is typically characterized by abnormally high levels of growth in real gross domestic product, employment, corporate profits, and other indicators.”

The second sentence is crucial here. All economies grow on average: they have a positive trend growth rate. An economic downturn (or worse still a recession) involves the economy dipping below trend (or in a recession not growing at all). Typically whenever that has happened in the past, most economies make up for the growth they lost in the downturn, by growing more rapidly than trend once the downturn is over. This had certainly been true for the UK. We expect economies to grow over time because of technical progress, so it seems almost obvious that a recovery must involve above average growth until we return to something like an underlying trend.

Imagine a 5,000 metres race. Suppose an athlete trips and stumbles, leaving the main pack behind. If 5 minutes later I said the athlete was recovering, would you think this meant that they were getting back to their previous pace but still well behind the main group, or that they were getting back in touch with the main pack? I suspect you would think it meant the latter, and you would call a complete recovery when they were back within the main group. If you think about the main group as the underlying trend path of the economy, then a recovery in growth means getting back towards this trend path.

For this reason I would define a recovery from recession as above trend growth, and I think most macroeconomists would do the same. Here is recent quarterly growth in UK GDP per head.

The red line is the pre-crisis trend growth rate. You can see from this that only 2014 could possibly be called a recovery, and even that is a bit of a stretch. The UK is far from unique in this respect, but unlike other countries the UK economy has a pretty clear and unchanged trend growth rate since the 1950s. Until now that is. This global lack of recovery begs many important questions, which those who read economics blogs will be very familiar with: has the financial crisis had a permanent negative effect on productive potential, was the pre-crisis period really a disguised boom, are we suffering from secular stagnation, what role did austerity play?

Yet all of these important issues are sidelined in popular discussion if we misuse the term recovery, and instead describe any positive growth after a recession as a recovery. This is not a problem for economists, who tend to talk numbers, but it does matter for the public debate. I cannot help feeling that calling any positive growth after a recession a recovery also adds to a sense of disconnect people have, particularly when (as in the UK) there has really been a recovery in employment, such that productivity has been virtually flat. People ask how come there has been a recovery and yet my wages are still so much lower in real terms than they used to be?.

When the underlying trend may have slowed or shifted, then it becomes difficult to know what is or is not a recovery, but that is no reason to misuse the term. When we are talking about the past, then things should be clear. Here is the same data for 1981.

It is obvious from this data that the recovery from the 1980 recession only really began in 1983. The two previous years saw as many periods of below trend growth as above trend growth: given normal growth, the economy was effectively standing still. Unless, of course, you have a political point to prove. In 1981 the Conservative government of Margaret Thatcher raised taxes substantially in the Spring Budget, despite just seeing 5 quarters of falling output per head. They increased taxes after falling output because they wanted to reduce the budget deficit. 364 academic economists quickly wrote a letter denouncing the policy - a Brexit like majority at the time.

In 2006 Philip Booth of the Institute of Economic Affairs wrote this:

“The economic recovery that the 364 said would not happen began more or less as soon as the letter appeared.”

This sentence has been repeated time after time by right wing economists and politicians: so often that it is now repeated as fact by BBC journalists. It has become what I call a politicised truth: something that is false but is perceived to be true by journalists who talk to politicians but not academics. And the statement that the recovery began as soon as the letter appeared is simply false if you use the term recovery properly: the recovery began a year and a half later. Had fiscal policy not been tightened in the 1981 budget, the recovery might have begun earlier than the end of 1982. In that sense, the economists were vindicated by subsequent events.

In 2010, George Osborne was warned by many academic economists - almost certainly a majority at the time - that embarking on austerity so soon after the recession was folly. But, just as in 1981, he wanted to reduce the deficit. It is not difficult to imagine that as he pondered these warnings from academics, he thought to himself that Margaret Thatcher got the same advice in 1981 and everything he had read said the advice was wrong because the recovery started immediately after taxes were increased. He would have been emboldened to do the same, with what we now know were disastrous consequences. Just two years later, GDP per head had lost another 3% or more relative to trend.

This is partly a story about the dangers of propaganda that you begin to believe yourself. But it is also about the potential ambiguity of one single word: recovery.