The journalist as amateur scientist

Paul Romer has talked about two types of discourse, one political and one scientific. He uses that distinction to critique aspects of current practice among economists. I want to do the same for journalism.

Political discourse involves taking sides, and promoting things that your side favours. It is like a school debate: you consider only evidence that favours the point of view you want to promote. Scientific discourse involves considering each piece of evidence on its merits. You do not aim to promote, but assess and come to a conclusion based on the evidence. That does not prevent the scientist arguing a case, but their argument is based on considering all the relevant evidence. There are no sides that are always right or invariably wrong.

Of course, any scientist makes choices about what evidence is relevant, and this will be influenced by existing theories. Ideally the theory you prefer can be changed by new evidence, but scientists being only humans can sometimes be reluctant to accept evidence that contradicts long held theories. But there are always younger scientists looking for new ideas to make their name. The scientific method works in time, which is why we are where we are today.

My argument is that journalists should be like amateur scientists. Amateur because part of their work will involve seeking out expertise rather than starting from scratch, and they do not have the time or resources to investigate each story as a scientist might. A term frequently used is ‘investigative journalist’, but that normally means someone who has weeks to work on one story. Instead I’m talking about journalists who only have a day. The key point is that they should not search for evidence that fits the story they wanted to write before doing any research, but allow the evidence to shape the story.

For example, suppose the story is about EU immigrants and benefits. What a journalist should note is that unemployment among EU immigrants is lower than natives. What a journalist who wants to write a story that makes immigrants look bad might do is say that the number of EU immigrants without a job make up a city the size of Bristol. This combines selection of evidence (where is the equivalent figure for natives is not reported) with simple deception: most people conflate ‘without a job’ with ‘unemployed’, rather than being people happy looking after children, for example.

If this all strikes you as obvious, at least to journalists working in broadsheet newspapers, the example above is taken from the Telegraph, and the post in which I discuss it contains a tweet from a Times economics editor saying that all journalists (and yours truly) take a stance and select facts that supports this stance.

There is actually a third type of journalism, which you could call acrobatic discourse, because it is always looking for balance. It is sometimes called ‘shape of the earth: sides differ’ journalism. Its merit is that it appears not to take sides, but as this extended name is meant to demonstrate, it is certainly not scientific. It is the kind of journalism that says the claim that £350 million a week goes to Brussels and could be spent on the NHS is ‘contested’, rather than simply untrue. In that sense, it can be uninformative and misleading, whereas scientific reporting is informative and is not misleading. Here is a twitter thread from Eric Umansky on a particularly bad example from the New York Times. Of course acrobatic journalism is easier and keeps the journalist out of trouble.

One of the side effects of acrobatic journalism is that it typically defines the two sides it wishes to balance. It therefore tends to be consensus journalism, where the consensus is defined by the politicians on either side. To see why this is problematic you just need to look at how Brexit is discussed and reported by the BBC since the referendum.

I began writing this post during the debate surrounding Nick Robinson’s Steve Hewlett Memorial Lecture. It is certainly strange for that debate to focus on outfits like The Canary, rather than the elephants in the room that produce political journalism to millions every day, who also tend to criticise the BBC whenever they get the opportunity. Yet the copy from these newspapers, and not The Canary, is regularly discussed by the broadcast media. The emergence of left social media journalism is a result of the consensus defining by-product of acrobatic journalism, which for a year or more defined the other side as the PLP rather than the Labour leadership.

I suspect many journalists would say that my idea of them being an amateur scientist is just impractical in this day and age, when they have so little time and resources. But what I have in mind (journalism as amateur scientists) is not very different from what journalists on the Financial Times do day in and day out. Chris Cook is an example of a journalist working in the broadcast media who does the same. But it is wrong to blame individual journalists for being more acrobatic than scientific, because the institutions they work for often demand it.

Nick Robinson’s lecture is much more nuanced and interesting that the subsequent media discussion would suggest. For example he identifies the problem with the way Facebook selects news that is discussed in more detail by Zeynep Tufekci in this TED talk. But there are two elephants in the room that he fails to discuss: the role of the increasingly politicised right wing press I have already mentioned, and the conflict between scientific and acrobatic journalism, both of which he praises without addressing the conflicts between them. [1]

[1] There is a clear example of this in the comments he recalls making on the Brexit debate just before the vote. He proudly says he called the £350 million claim untrue, but he then adds

“I did, incidentally, also say that the Remain claim that every household in Britain would be £4,300 a year better off was misleading and impossible to verify.”

This is acrobatic journalism at its worse. Yes, the BBC did think the £4,300 figure was ‘misleading’, but only because they did not talk to an economist who would have told you it was not. It shows a failure to be a good amateur scientist. But worse that that, this clumsy attempt at balance puts the central claim of the Remain campaign in the same bracket as £350 million a week lie, which it certainly is not.

Links between austerity and immigration, and the power of information

This discussion by Roger Scully about why people in the Welsh Valleys voted Leave is depressing although not surprising. In essence it is immigration, bolstered by local stories of Polish people coming into communities and reducing wages. I doubt if quoting econometric studies about how little immigration influences wages would make much difference to these attitudes (although that is no excuse for people in authority who should know better ignoring these studies). I think it is attitudes like this, in places unused to immigration partly because work is not plentiful, that makes some politicians say that arguing in favour of immigration is ‘politically impossible’.

This is the first link between immigration and austerity I want to draw. The Labour party before 2015 had also decided that attacking austerity was politically impossible: ‘the argument had been lost’. Focus groups told them that people had become convinced that the government should tighten its belt because governments were just like households. The mistake here, as I wrote many times, was to assume attitudes were fixed rather than contextual. I was right: austerity is no longer a vote winner. [1]

Why might attitudes to immigration change? I strongly suspect that anti-immigration attitudes, along with suspicion about benefit claimants, become stronger in bad times. When real wages are rising it is difficult to fire people up with arguments that they would have risen even faster in the absence of immigration. But when real wages are falling, as they have been in the UK in an unprecedented way over the last decade, it is much easier to blame outsiders. Equally when public services deteriorate it is easy to blame newcomers.

It is wrong to think that this only happens among working class, left behind communities. Catalonia is a relatively rich part of Spain, and there has always been resentment about this area ‘subsidising’ the rest of the country. But it is very noticeable how support for pro-independence parties increased sharply as Spain turned to austerity, although that could also be a reaction to corruption scandals.

Here is the second link between immigration attitudes and austerity. Austerity has contributed to the slow growth in real wages and is the main cause of deteriorating public services, but often outsiders are easier to blame.

This is particularly true when it is in the interests of the governing political party and its supporters in the press to deflect criticism of austerity by pretending immigration is the real cause of people's woes. This is the third link between austerity and immigration, and it is one deliberately created and encouraged by right wing political parties. In this way Brexit has its own self-reinforcing dynamic. People vote for it because of immigration, its prospect leads to falling real wages as sterling falls and the economy falters, which adds to bad times and anti-immigrant attitudes.

If all this seems very pessimistic, it shouldn’t be. While the right will almost certainly continue to play the anti-immigration card in the short term, because they have few other cards to play, they can be opposed by a left that makes the case for immigration. As just as views on austerity have clearly changed, so can views on immigration. particularly once hard times come to an end.

However it is a mistake to imagine it is all about economics, or even ‘culture’. One of the unfortunate consequences of the culture vs economics debate over populism is the implication that one way or another views are deterministic, and the only issue is what kind of determinism. The reason I go on about the media so much is that information matters a lot too. Although people may be anti-immigration because they have xenophobic tendencies which are reinforced when times are bad, they can also be anti-immigration because they have poor information, or worse still have been fed deliberately misleading facts.

In my intray of studies to write about for some time has been this paper by Alexis Grigorieff, Christopher Roth and Diego Ubfal. (Sam Bowman reminded me it was there from this piece.) It is well known that people tend to overestimate the number of immigrants in their country. This international experiment showed that when people were given the correct information, a significant number changed their views. What is more, this change of view was permanent rather than temporary. Here is a VoxEU post about an experiment from Japan pointing in the same direction.

As well as emphasising simple information like this, politicians should expose the kind of tricks people promoting tougher controls on immigration play. The public tends to be receptive to the idea that it is beneficial for the economy to have immigrants with important skills, so they switch to calling for controls on low paid, low skilled workers. As Jonathan Portes demonstrates, that in practice can involve plenty of pretty skilled workers. The trick for pro-immigration politicians is to ask which occupations do we want to exclude: nurses, care workers, construction workers, primary school teachers, chefs? With UK unemployment relatively low, there are not many jobs where employers are not complaining of shortages.

Of course most people want to stop immigrants coming here and claiming unemployment benefit. This is why newspapers keep playing the trick of talking about the large number of migrants ‘who are not employed’, conveniently forgetting to mention that this includes people like mothers looking after children. In reality unemployment among EU immigrants is below that among the native population. In addition, we can already deport EU immigrants that remain unemployed under EU law if the government could be bothered to do so.

For politicians who do want to start making the case for immigration, the place I would start is public services. Few economists would dispute that immigrants pay more in tax than they take out in using public services. Yet most of the public believe the opposite. In this post entitled ‘Is Austerity to blame for Brexit’ I show a poll where the biggest reason people give for EU immigration being bad is its impact on the NHS. Getting the true information out there will have a big effect. Just as public attitudes to austerity can change, so can they over immigration, but only if politicians on the left start getting the facts out there.

[1] To be fair, whether I would have been right in 2014/15 if Labour had taken a clear anti-austerity line we do not know.   

A short guide to why we should not raise UK interest rates

Everyone expects the MPC to raise rates on Thursday. This would be a mistake. Discussion about interest rate changes in the press normally involve large amounts of data and charts about the state of the economy. Here I want to do the opposite: to present the minimum you need to know to understand that raising UK rates right now is the wrong thing to do.

Everyone should know that UK inflation is currently around 3% because of the Brexit depreciation. But because the impact of a deprecation on price inflation is temporary if wage inflation remains flat, the Bank said they would ignore this temporary rise. The key is to look at whether average earnings inflation is responding to higher consumer price inflation. The answer is they are not: average earnings growth has been slightly above 2% all this year, which is a little lower than the average for 2016.

But what about unemployment being at a 42 year low? Surely that means earnings growth is just waiting to kick off. The first point is that unemployment is not currently a good measure of labour market slack. A better measure is the Resolution Foundation’s underemployment index, which is still above levels before the global financial crisis. And before you say but that was a boom period, it wasn’t. UK core inflation was below 2% throughout, and earnings growth was consistent with this.

The other thing to say is that it is quite wrong to assume that we know what the level of labour market slack is that would lead to increases in earnings growth (what economists call the NAIRU). The NAIRU moves over time. As just one example of why it might move, a labour force that rents is likely to be more mobile than one that owns a house, and so the trend towards renting should reduce the NAIRU.

So looking at the labour market, there is no sign that we are close to a level where earnings inflation might pick up. And that is pretty well a precondition for inflation to exceed its target of 2% over the medium term. That is all you really need to know. If you want to know why the MPC probably will raise rates, read on.

What I suspect the Bank are worrying about is that Brexit has created what economists call a negative supply shock. In particular, both investment and productivity growth are much lower than the Bank were expecting before Brexit. They will point to various survey measures which show firms do not have any spare capacity. But this reasoning I think indicates a conceptual weakness.

Firms have two responses to lack of capacity: raising prices or investment. By choking off demand and raising rates when firms run out of capacity the Bank will discourage investment, and right now what the economy desperately needs is more investment and the productivity improvements that brings with it. The Bank shouldn’t worry about a bit of inflation that might come with higher investment, because 2% earnings growth is an anchor that will prevent inflation deviating from target for any length of time.

That should be enough, but there are two other reasons why the Bank should not raise rates. First, right now the downside risk on the demand side from Brexit surely exceeds the upside risk. Second, as the OBR chart here shows (look at orange bars), after a pause in 2017 austerity is planned to return in 2018 and 2019. Combining fiscal and monetary tightening in a boom would make sense, but we are currently in an economic downturn, with GDP per head growing this year at a third of its average pace since the recession of 2009. [1]

Finally, it is always important to consider risks. Suppose earnings growth does pick up sharply just after the MPC’s monthly meeting. The Bank always says it wants to be ‘ahead of the curve’, to avoid too rapid an increase in rates. This is the mentality that has led inflation to undershoot in the US and Eurozone since the recession, and if you take out the impact of depreciations by looking at the GDP deflator the same is true for the UK. The problem for the UK economy since the recession has not been too much inflation, but far too little demand.

[1] Specifically, average growth in 2017 is 0.1% per quarter, and averaging quarterly growth rates from 2010 Q1 to 2016 Q4 gives 0.3% per quarter          

Why is the UK making such a mess of A50 negotiations?

The obvious answer to this question is that the negotiator, the UK government, is completely split on what it wants. But that is only part of an explanation for this shambles. In the first year I think actions were dictated by a completely unreal perception about power, and perhaps more recently by a need to avoid a coup by the hardline Brexiteers.

The people who might have thought about the negotiations before the vote itself, the Leave side, didn’t do so partly because they didn’t expect to win. But they also had completely unrealistic expectations of the relative power of each side. This was an advantage during the campaign, because they could say ridiculous things about the economic consequences of Brexit without knowing it was a lie. But once they had won, there were only two ways to go, and either of them led to an early implementation of Article 50.

The first possibility is that after the campaign they continued to believe that German car makers would pressure the German government and the EU to give us what we want, so why not bring that on by triggering A50. The second was that they began to doubt this, but that in turn led to a fear that once the people found out they had been told falsehoods about leaving they would change their minds. That too lead to an urgent need to trigger A50 before this happened.

But Leavers did not have a majority in parliament. Remain MPs must surely have realised that the EU had much more power than the UK (the proportionate cost of no deal is much greater for the UK), and that once A50 was triggered the clock was ticking for the UK, not the EU. David Allen Green has justifiably said I told you so, and I knew when I wrote a post entitled “The Folly of triggering Article 50” in November 2016 that I was just repeating expert opinion, and to be honest common sense. As I said there

“this has absolutely nothing to do with whether you voted to Remain or Leave. Anyone who actually wants a good deal from the EU when we leave should realise that the UK’s negotiating position becomes instantly weaker once Article 50 is triggered.”

The worst explanation for why the majority of MPs ignored this advice was that they didn’t hear it. (We know the Prime Minister did hear that advice from Sir Ivan Rogers.) Almost as bad was that they heard it but thought it was just a desperate ploy by experts to delay leaving. Those who want to say it is all because of mixed motives from the Labour leadership will do so. But I suspect there is a simpler explanation: MPs felt voting to delay was ‘politically impossible’.

Part of the reason it was ‘politically impossible’ is that the standard of reporting and debate among broadcasters on these issues is so poor that the argument that triggering A50 was bad tactics would simply not have got a proper hearing. In addition the tabloids would have screamed “enemies of the people” just as they did when three judges allowed MPs a vote. In this sense our media not only gave us a Leave vote, they forced an early triggering of A50 which was not in the country’s interests.

As I wrote in that earlier post, it “would only be a slight exaggeration to say [triggering A50] allows the EU to dictate terms” which is exactly what they are doing. In these circumstances, the best approach to the negotiations is to treat them as a cooperative exercise rather than a zero sum game. Yet we were led by Theresa May and David Davis, who were instead determined to treat this as a classical zero sum negotiation where, because you had more power, your best hope was to make the other side believe you will walk away. Yet that walking away threat was never credible, partly because of reasons already given, but more importantly because a deal on the EU's terms was better than no deal.

But despite this, in our negotiators minds the delusion that we have power in these negotiations as long as we threaten to walk away seems to persist. The lack of flexibility by the EU can be dismissed as them playing hardball. As firms move abroad because they need to plan and they cannot be certain of any transition arrangements, the cost of delusion will be paid for in lost UK output and lower incomes.

It is just possible that both May and Davis have begun to realise this, but the delusion of power has been replaced by something else, which is the fear of a coup by Brexiteers. The pro-Brexit views of Tory party members makes such a threat credible, but any coup would have to happen well before the negotiations ended. Perhaps the reason May is now being so slow to move is to make the possibility of a coup less likely. But perhaps that involves a level of strategic thinking the Prime Minister is not capable of and Davis has simply given up.

Whatever the motivation, the end result has one certain consequence: the economy is damaged. As one final example, take the length of the transition period. The logical thing to do is to have a transition period until a new trade agreement is agreed. Anything else involves significant economic and administrative costs. But the UK government does not seek this because it pretends a trade agreement can be done quickly, and it pretends this nonsense to avoid a confrontation with the hardliners.

Even if this turns out to be pretend and extend, because the transition period will keep on being rolled forward at the last minute, this arrangement suits the EU and damages the UK. It is good for the EU because their exports to the UK do not suffer. It damages the UK because the uncertainty continues to make moving production to the EU rather than exporting to the EU attractive. Just one more way that the fantasies of Brexit hardliners are costing us all.

A European Monetary Fund

Sapir and Schoenmaker at Bruegel have a discussion of what a European version of the IMF might look like and do. Here are my thoughts on the sovereign debt (not banking) side, which I am sure will be regarded once again as radical and will therefore be ignored.

I think some new Eurozone institution is necessary, but not for the reason that most people might think. The idea that the Eurozone might have a common fund that lends to Eurozone countries in fiscal difficulties with associated conditionality, as the IMF does, is a terrible idea. We know it is a terrible idea because of Greece.

Think of the following scenario. A country getting into difficulties is lent some money by the EMF. That sum increases as existing private investors take fright. For whatever reason the ‘recovery plan’ imposed by the EMF goes wrong, and it becomes clear to all neutral observers that the country needs to default on its debts, including those to the EMF. As the EMF loan is regarded as ‘our money’ by a good part of the EZ electorate, this default is resisted and punitive austerity is imposed on the country so that the EMF can get its money back. This does not happen to the IMF because the electorate in any individual country do not think of their loans as ‘their money’, but it is naive to believe that wouldn’t happen with an EMF. It is exactly what happened in Greece, and it is also why moves to a political union are far too premature..

This raises an obvious question: why have an EMF, when we have an IMF? The wrong way of thinking about that question is that the Eurozone needed to supplement the IMF during the last crisis. The last crisis is not a good example because the ECB did not operate OMT until September 2012. The right way to think about the past is what would have happened if OMT had been operating from the start.

The ECB is (rightly) only prepared to operate OMT for a country that is returning its financing to some sustainable level. For some countries that may not be possible, or desirable, without default. That was the case for Greece. For others that will be possible without default, as Ireland and Portugal have shown. You need somebody, or some institution, to decide which category a country finds itself in. But whether default is needed or not, a recovery plan (austerity) has to be put in place to return the public finances to sustainability and once that plan is in place OMT then operates.

Once that happens, I think any lending should be done by the IMF for the reason I have already given [1]. However it may well be that as long as the austerity is sensibly mild and drawn out [2], private sector lending will resume because of OMT.

I think a new institution to do both the job of initially deciding about default and to create the recovery plan would be a good idea. But both decisions have to be kept as far away from politicians as possible. The reason again comes from history: the loans to the government that may require default are likely to be from banks or institutions in other EZ countries. That creates a serious bias towards ‘lend and pretend’, as we saw with Greece. 

How can you achieve such independence in the EMF? In addition, how do you justify giving an institution staff and resources when it hopefully will be hardly ever needed? One answer could be to use the IMF, although at the moment the IMF is not sufficiently independent of EZ politicians. Another is to utilise the network of independent fiscal institutions or fiscal councils that every EZ country now has. If those institutions live up to their name, they should be independent of politicians. In addition, they have exactly the expertise to decide on any default and to put together a recovery plan.

Now the great thing about this set-up is that it allows fiscal autonomy in countries that have not got into fiscal difficulties. Fiscal discipline through the market is restored, because there is a clear default risk (but not the self-fulfilling default risk that operated before OMT). There would be less of a feeling in countries like Germany that they had to worry about fiscal policy in other EZ countries because they will pick up the tab because there will not be any tab to pick up. In that sense the no bail out rule is restored. 

What would the Brussels machinery that currently monitors each EZ country do? Am I proposing to put some Brussels bureaucrats out of a job? Not necessarily. A potential problem with the system I suggest is that fiscal councils will be captured by their governments. Brussels could ensure that the fiscal councils are independent, which would involve checking their assessments and forecasts (or even supplying them with forecasts).

I can predict with almost certainty that some comments will be that I am taking crucial decisions away from democratically elected politicians and giving them to technocrats. We have enough of that in the Eurozone as it is they will say. There are two simple responses. First, in the absence of the Eurozone, governments that were no longer able to borrow would face the technocrats at the IMF. Second, we have tried the democratic route and it has failed spectacularly for reasons that will not go away in a hurry. 

There you have it. A feasible plan to increase sovereignty in the Eurozone and mitigate another Eurozone crisis and avoid another Greece. Now tell me why we have to move to fiscal and political union.

[1] Obviously in that case the IMF would also have to approve the recovery plan.

[2] A short sharp shock will almost inevitably lead to damaging negative feedback on output, perhaps creating another Greece.

Dani Rodrik talks straight on trade

Dani Rodrik’s new book is a challenging read (in the good sense) for any liberal in the UK living through Brexit, or in the US contemplating whether Trump will destroy NAFTA. For example Chapter 2 starts with Theresa May’s statement about a citizen of the world is a citizen of nowhere, and the rest of the chapter is about how that statement contains an essential truth. Although Rodrik admits he himself looks like the perfect specimen of a global citizen, he argues convincingly that for most people the nation state represents their feelings of identity, of economic inequality, and provides their security (or not) after global shocks. Furthermore, he argues, that is how it should be.

His enemy in this Chapter is what he calls hyperglobalisation. To quote:

“We push markets beyond what their governance can support. We set global rules that defy the underlying diversity in needs and preferences. We downgrade the nation-state without compensating improvements in governance elsewhere. The failure lies at the heart of globalisation’s unaddressed ills as well as the decline in our democracies’ health”

The next chapter considers the Eurozone as a case study of failing to appreciate these points. He argues, as many economists do, that this means either a much fuller political union or abandoning the monetary union. My own view is that the latter will not happen, and the former should not happen for all the reasons he gives in the previous chapter. What I think needs to be explored is combining a monetary union with national autonomy over fiscal policy in such a way that both prevents bailouts, by allowing default when inevitable, and otherwise allows the ECB to act as a sovereign lender of last resort. Only if that fails can we conclude that that the Eurozone has to go to political union or different currencies.

Returning to this reader being challenged, in a chapter entitled ‘The Perils of Economic Consensus’ he writes:

“Even in the case of Brexit, where the weight of both evidence and theory predicts adverse economic results, economists would have been well advised to emphasize their uncertainty over their confidence.”

If we mean ‘well advised’ in the sense of being more convincing, I doubt very much if this is true. Here I am always reminded of debates I have often seen on TV between a climate change scientist and a climate change skeptic. The scientist typically expresses exactly the uncertainties in the way Rodrik suggests they should, while the skeptic on the other hand, who is normally not a scientist, seem totally confident in the views they express. Unfortunately most viewers of this debate are not scientists, and we know people are attracted to those who are confident and self assured. The contrast is between scientific and political discourse: here is another example. But given this, doesn’t the ‘be modest’ imperative need to be modified by context?

Of course one of the things Rodrik is best known for is in challenging the economists' consensus that trade agreements are always good, which I mentioned here and which he discusses in the book. As more and more economists are now realising, he was right to make that challenge. Perhaps the two perspectives can be reconciled as follows. The problem with the free trade advocates is that they were keeping quiet about known issues with their analysis because they thought it would give ammunition to ‘the other side’. As far as academic analysis of Brexit is concerned, and confining ourselves to the economic impact alone, I do not think the same applies.

There are plenty more challenges in the book to what often goes as established economic wisdom. For example he argues against the idea that development would be hindered by worrying about workers rights in developing countries. He argues that state or crony capitalism has in many cases been a successful route to economic development. But mainly there is a wealth of intelligent, informed and often enlightening discussion about routes to economic development, the power of ideas over interests, why current unrest has generally not benefited the left and so on and so on.

In that sense the title of the book is rather misleading. Although it is discussed a lot, this is hardly just a book about trade. Indeed the subtitle “Ideas for a sane world economy” conveys a better picture of what it is about. The book is based on a collection of articles written for Project Syndicate and elsewhere, and occasionally the joins show. But that feeling quickly gets lost in a wealth of stimulating arguments and ideas that I defy anyone to find dull. This is a fascinating book to read, and I cannot think of anyone who would not learn a great deal from reading it.

Forecast errors compared

And a coda defends experts against Aditya Chakrabortty

A recent conversation got me thinking about different types of macroeconomic forecast error, and what implications they might have for macroeconomics. I’ll take three, from a UK perspective although the implications go well beyond. The errors are the financial crisis, the lack of a downturn immediately after Brexit, and flat UK productivity.

The immediate cause of the Global Financial Crisis (GFC) was the US housing market crash, but that alone should have caused some kind of downturn in the US, with limited implications for the rest of the world. What caused the GFC was the lack of resilience of banks around the world to a shock of this kind.

Were there any indications of this lack of resilience? Here is an OECD series for banking sector leverage in the UK: the ratio of bank assets to capital. The higher the number, the more fragile banks are becoming.

UK Banking sector leverage: Source OECD

The first and perhaps most important problem with forecasting the financial crisis was that macro forecasters were not looking at data like this. For most it was not on their radar, because banks, let alone bank leverage, played no role in their models. It was a sin of omission, a big gap in our macro understanding. (Whether, if forecasters had been having to forecast this data, they would have predicted a crisis is improbable, but some would have at least noted it as an issue.)

Moving on to the second mistake, it is often said (correctly) that forecasters are very bad at predicting turning points or dramatic changes. But many did predict such a change immediately following the Brexit vote: a sharp and immediate slowdown in demand caused by the uncertainty of Brexit. It didn’t happen. The main reason was consumption, which held up by more than people were expecting, given the fall in real incomes that was likely to come from the Brexit depreciation. There are two and a half obvious explanations for this. First, because of Leave propaganda half the population thought Brexit would make them at least no worse off. Second, those who did anticipate the rise in import prices may have taken the opportunity to buy consumer durables made overseas to beat the prospective price increase. The half is that the Bank cut interest rates a bit.

None of these effects are very new. They may not have been incorporated into the forecasters’ models, but they could in principle have been incorporated using the forecaster’s judgement, although getting the quantification right would have been very difficult. In the end we got the slowdown, but delayed until the first half of this year, as Leavers began to face reality and the higher import prices came through, so it was an error of timing more than anything else (although it was apparently enough to make MP Liz Truss change her mind and support Brexit!). You could describe it as an unchallenging error, because it could easily be explained using existing ideas. It is the kind of error that forecasters make all the time, and which makes forecasting so inaccurate.

The third error was UK productivity, which I talked about at length here. Until the GFC, macro forecasters in the UK had not had to think about technical progress and how it became embodied in improvements in labour productivity, because the trend seemed remarkably stable. So when UK productivity growth appeared to come to a halt after the GFC, forecasters were largely in the dark. What many like the OBR did, which is to assume that previous trend growth would quickly resume, was not the extreme that some people suggest. It was instead a compromise between continuing no growth and reverting to the previous trend line, the second being what had happened in previous recessions.

My point of writing about this again is that I think this third error is much more like the GFC mistake than the post-Brexit vote mistake. In both cases something important that forecasters were used to taking for granted started behaving in a way that had not happened since WWII. Standard models were used to treating technical progress as an unpredictable random process. Now it is just possible that this is still the case, and the absence of technical progress in the UK and to a lesser extent elsewhere is just one of those things that will never be explained. But for the UK at least the coincidence with the GFC, austerity and now Brexit seems too great. As as I showed in the earlier post growth has not been exactly zero but has oscillated in a way that could be related to macro events.

If there is some connection, both in the UK and elsewhere, between the decline in economic productivity growth and macroeconomic developments, then this suggests an important missing element in macromodels. And like the financial sector, there is an existing body of research that economists can draw on, which is endogenous growth theory. There are examples of that happening already.

But I want to end with a plea. After the financial crisis too many people who should have know better said that failing to predict the financial crisis meant that all existing mainstream macroeconomics was flawed. It was rubbish, but such attitudes did not help when some of us were arguing against austerity on the basis of standard macroeconomic ideas and evidence. Now with UK productivity, we have Aditya Chakrabortty saying that experts at the OBR “are guilty of a similar un-realism and they have proven just as impervious to criticism” as people like Boris Johnson or Liam Fox. Not content with this nonsense, he says “This age of impossibilism is partly their creation”.

This is just wrong. Look at the elements of neoliberal overreach. Economists didn’t start calling for tight immigration controls and using immigrants as a scapegoat for almost everything. Most academic economists did not call for austerity. Almost all economists did not want to get rid of our trade agreements with the EU. Even if economists had warned about the financial crisis they would have been ignored because of the political power of finance. If all economists had thought productivity would continue flat we would have just had more austerity. [1] And in making this basic mistake, it is ironically Aditya Chakrabortty who has joined Michael Gove and other Brexiteers in having had enough of experts.

[1] Less expected productivity growth means lower future output which means lower future tax receipts which means, given the government’s austerity policy, more cuts in public spending.

The lesson monetary policy needs to learn

It seemed obvious to write a post about the Peterson Institute’s recent conference on ‘Rethinking Macroeconomic Policy’, but nowadays I find it more efficient to let Martin Sandbu do the job. We agree most of the time, and he does these things better than I do. It allows me to write something only in the unlikely event that I disagree, or if I want to take the discussion further.

I only have one quibble with Martin’s column yesterday. I think Bernanke’s suggestion that following a large recession (where interest rates hit their lower bound) central banks revert to a temporary price level target is rather more than the tweak he suggests. In addition, as Tony Yates pointed out, level of NGDP targets do not resolve the asymmetry problem that Bernanke’s suggestion is designed to address.

I also thought I could illustrate Martin’s final point that “admitting one has got things badly wrong is a prerequisite for doing better” by looking at some numbers. If we look at consumer prices, average inflation between 2009 and 2016 was 1.1% in the Euro area, 1.4% in the US and 2.2% in the UK. The UK was a failure too: average consumer price inflation should have been higher than 2.2%, because we had a large VAT hike and depreciation that monetary policy rightly saw through. If we look at GDP deflators we get a clearer picture, with 1.0%, 1.5% and 1.6% for the EZ, US and UK respectively.

You might think errors of that size are not too bad, and anyway what is wrong with inflation being too low. You would be wrong because in a recovery period these errors represent lost resources that, as the Phillips curve appears to be currently so flat, could be considerable. Or in other words the recovery could have been a lot faster, and interest rates could now be well off the lower bound everywhere, if policy had been more expansionary.

What I really wanted to add to Martin’s discussion was to suggest the main problem with monetary policy over this period, particularly in the UK and the Eurozone. It is not, in my view, the failure to adopt a levels target, or even the ECB raising rates in 2011 (although that was a serious and costly mistake). In 2009, when central banks would have liked to stimulate further but felt that interest rates were at their lower bound, they should have issued a statement that went something like this:

“We have lost our main instrument for controlling the economy. There are other instruments we could use, but their impact is largely unknown, so they are completely unreliable. There is a much superior way of stimulating the economy in this situation, and that is fiscal policy, but of course it remains the government’s prerogative whether it wishes to use that instrument. Until we think the economy has recovered sufficiently to raise interest rates, the economy is no longer under our control.”

I am not suggesting QE did not have a significant positive impact on the economy. But its use allowed governments to imagine that ending the recession was not their responsibility, and that what I call the Consensus Assignment was still working. It was not: QE was one of the most unreliable policy instruments imaginable.

The criticism that this would involve the central bank exceeding its remit and telling politicians what to do is misplaced. Members of the ECB spent much of the time telling politicians the opposite, Mervyn King did the same in a more discreet way, while Ben Bernanke eventually said in essence something milder than the above. Under the Consensus Assignment we have invested central banks with the task of managing the economy because we think interest rates are a better tool than fiscal policy. As such it is beholden on them to tell us when they can no longer do the job better than government.

A better criticism is that a statement of that kind would not have made any difference, and we could spend hours discussing that. But this is about the future, and who knows what the political circumstances will be then. It is important that governments acknowledge that the Consensus Assignment no longer works if central banks believe there is a lower bound for interest rates, and this has to start by central banks admitting this. Economists like Paul Krugman, Brad DeLong and myself have been saying these things for so long and so often, but I think central banks still have problems fully accepting what this means for them.       

How Neoliberals weaponise the concept of an ideal market

This new book by Colin Crouch will perplex many on the left who simply believe neoliberalism has to be overthrown. Indeed the author starts his book by talking about the Grenfell Tower disaster, which he along with many others believe epitomises the failings of neoliberalism. Yet he writes that the book

“is not a contribution to the demonology of neoliberalism, but an attempt at a nuanced account. Only in that way can we assess its capacity for reform.”

Such an account can of course also be justified on the basis of intellectual curiosity, but in addition the author sees some positive aspects of the ideology: He summarises these as

“the discipline of price and calculation [recognising efficiency and opportunity cost}; helping us appreciate the limitations of democratic government; facilitating trade and reducing barriers to it; and facilitating links among people [reducing national divisions].”

So what exactly is neoliberalism? He defines it as

“a political strategy that seeks to make as much of our lives as possible conform to the economist’s ideal of a free market”

The problems and deficiencies of this strategy come when the conditions required for the free market to be ideal do not hold, and the author’s long discussion of these problems would be useful for any economics undergraduate.

One of these conditions for an ideal market is competition: a free market is an ideal from a social point of view if (alongside many other conditions) each good is produced by a very large number of producers. The author recognises, for obvious reasons, that most neoliberals (as opposed, perhaps, to ordoliberals) tend not to go around wanting to break up monopolies and reduce monopoly power. As a result, he distinguishes between market-neoliberals who might, and corporate-neoliberals who would not. He talks about past competition (that may have resulted in monopoly) and current competition. As Luigi Zingales describes it rather well here, business tends to be in favour of a competitive market before it enters it, but once it has a dominant position in that market it is happy to put up barriers to further competition.

The author goes on to discuss conflicts between corporate and market neoliberalism, and much else besides. I think it is a great book, free from unnecessary jargon that you often find elsewhere. It got me thinking about the concept of neoliberalism again as you can see below. Whether that is a good thing or not, I would encourage you to read the book. The author also of course discusses whether he thinks neoliberalism can save itself. For his answer to that question you will have to read the book.

Now, for what it is worth, are some of the thoughts the book inspired. They go back to the distinction between market-neoliberals and corporate-neoliberals. It seems a little odd to define an ideology as the evangelisation of the free market, and then go on to say most neoliberals happen to exclude a crucial component of that free market (competition) when it suits them. I am quite prepared to believe that some of the people who first wrote about neoliberalism many years ago (and perhaps one or two today) could be described as what the author calls market-neoliberals, but as I have suggested in the past I think neoliberalism has evolved (or if you like been distorted) by ‘big money’ or capital to become a tool for self justification.

As a result, I would tend to suggest a slightly different definition that seems to work quite well today. The definition would be: 

neoliberalism is a political strategy promoting the interests of big money that utilises the economist’s ideal of a free market to promote and extend market activity and remove all ‘interference’ in the market that conflicts with these interests.

This replaces a definition based on following an idea (the author’s market neoliberalism), by one of interests promoting an idea so long as it suits those interests.

This alternative definition seems to fit two cases I have used in the past to question more conventional ideas. Large banks benefit hugely from an implicit subsidy provided by the state (being bailed out when things go wrong), but neoliberals do not worry too much about this form of state interference in the market (whereas economists do). Regulations on the other hand they do complain about. It is a very selective focus on market interference.

The second is executive pay. This is always justified by neoliberals as being something determined by the free market, when obviously it is not. Yet if you pretend that there is a market in executives and salaries etc are set by that market and not the remuneration committees of firms, then you are being a good neoliberal by defending these salaries. This example is interesting because it involves defending one part of ‘big money’ (CEOs or some workers in finance) at the expense of another (shareholders). It is why I do not talk about the interests of capital in my definition. 

Is this alternative definition simply negating the power of ideas and going back to good old interests? Only in part. Interests utilise an idea because the idea is a powerful persuasive tool. There is an obvious lesson for the left here. Because neoliberals promote the concept of an ideal market only when it suits them, so opposing neoliberalism does not necessarily mean opposing the concept of an ideal market. The left should utiliise the same concept to oppose monopoly power, for example. The idea of a free market is too powerful an idea to cede to the other side. 

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.