Fiscal policy remains in the stone age

Or maybe the middle ages, but certainly not anything more recent than the 1920s. Keynes advocated using fiscal expansion in what he called a liquidity trap in the 1930s. Nowadays we use a different terminology, and talk about the need for fiscal expansion when nominal interest rates are stuck at the Zero Lower Bound or Effective Lower Bound. (I slightly prefer the latter terminology because it is up to central banks to decide at what point reducing nominal interest rates further would be risky or counterproductive.) The logic is the same today as it was in the 1930s. When monetary policy loses its reliable and effective instrument to manage the economy, you need to bring in the next best reliable and effective instrument: fiscal policy.

The Eurozone as a whole is currently at the effective lower bound. Rates are just below zero and the ECB is creating money for large scale purchases of assets: a monetary policy instrument whose impact is much more uncertain than interest rate changes or fiscal policy changes (but certainly better than nothing). The reason monetary policy is at maximum stimulus setting is that Eurozone core inflation seems stuck at 1% or below. Time, clearly, for fiscal policy to start lending a hand with some fiscal stimulus.

Yet the goal of the new German Finance minister, from the supposedly left wing Social Democrats, is to achieve a budget surplus of 1%. To achieve that he is cutting public investment from 37.9 billion euros in the coming year to 33.5 billion euros by 2020. Yet German infrastructure, once world renowned, is falling apart. Its broadband connectivity could be greatly improved.

The macroeconomic case for a more expansionary German fiscal policy is overwhelming. Germany has a current account surplus of around 8% of GDP. There are some structural reasons why you might expect some current account surplus in Germany, but the IMF estimates that these structural factors account for less than half of the current surplus. It estimates that a third of the excess surplus is a result of an overly tight fiscal policy. As Guntram Wolff points out, the main counterpart to the surplus is saving by the corporate sector. Perhaps more public investment might encourage additional private investment.

But this is not another article about how Germany needs to expand to help the rest of the Eurozone. The problem, as Matthew Klein points out, is that the whole of the Eurozone is doing the same. In the area as a whole, the fiscal position is as tight as it was in the pre-crisis boom. Unemployment in the Eurozone is still too high. And the reason fiscal policy is too tight is that key Eurozone policymakers think that is the right thing to do. “The right deficit is zero” says the French finance minister. He goes on: “ Since France is not in an economic crisis, we need to have a balanced budget, so that we can afford a deficit in tougher times.” You hear the same in Germany: the economy is booming so we must have budget surpluses.

A booming economy is not one that is growing fast, but is one where the level of output and employment is above the level compatible with staying at target inflation. Measures of the output gap are only estimates of what that level is: underlying inflation is the ultimate guide. Core inflation is well below target right now, which is why interest rates are at their effective lower bound. This is why the actions and rhetoric of most European (and UK) finance ministers are simply wrong.

You would think that causing a second recession after the one following the GFC would have been a wake up call for European finance ministers to learn some macroeconomics. (Yes, I know that the ECB raising rates in 2011 did not help, but I expect most macro models will tell you the collective fiscal contraction did most of the harm.) Yet what little learning there has been is not to make huge mistakes but only large ones: we should balance the budget when there is no crisis.

This is not a dispute between left and right as it is now in the UK, but a problem with the policy consensus in Europe. What we are seeing I suspect is a potent combination of two forces: a German obsession with balancing the budget which has it roots in currently dominant ordoliberal/neoliberal ideology, and Keynes famous practical men: advisers who learnt what economics they have in an era of the great moderation where the worst economic problem we had was relatively benign deficit bias. Fighting the last war and all that.

NAIRU bashing

The NAIRU is the level of unemployment at which inflation is stable. Ever since economists invented the concept people have poked fun at how difficult to measure and elusive the NAIRU appears to be, and these articles often end with the proclamation that it is time we ditched the concept. Even good journalists can do it. But few of these attempts to trash the NAIRU answer a very simple and obvious question - how else do we link the real economy to inflation?

One exception are those that attempt to suggest that all we need to effectively control the economy is a nominal anchor, like the money supply or the exchange rate. But to cut a long story short, attempts to put this into practice have never worked out too well. The most recent attempt has been the Euro: just adopt a common currency, and inflation in individual countries will be forced to follow the average. This didn’t prove to be true for either Germany or the periphery, with disastrous results.

The NAIRU is one of those economic concepts which is essential to understand the economy but is extremely difficult to measure. Let’s start with the reasons for difficulty. First, unemployment is not perfectly measured (with people giving up looking for work who start looking again when the economy grows strongly), and may not capture the idea it is meant to represent, which is excess supply or demand in the labour market. Second, it looks at only the labour market, whereas inflation may also have something to do with excess demand in the goods market. Third, even if neither of these problems existed, the way unemployment interacts with inflation is still not clear.

The way economists have thought about the relationship between unemployment and inflation over the last 50 years is the Phillips curve. That says that inflation depends on expected inflation and unemployment. The importance of expected inflation means that simply drawing unemployment against inflation will always produce a mess. I remember from one of the earlier editions of Mankiw’s textbook he had a lovely plot of this for the US, that contradicted what I just said: it displayed clear ‘Phillips curve loops’. But it was always messier for other countries and it got messier for the US once we had inflation targeting (as it should with rational expectations). See this post for details.

The ubiquity of the New Keynesian Phillips Curve (NKPC) in current macroeconomics should not fool anyone that we finally have the true model of inflation. Its frequency of use reflects the obsession with microfoundations methodology and the consequent downgrading of empirical analysis. We know that workers and employers don’t like nominal wage cuts, but that aversion is not in the NKPC. If monetary policy is stuck at the Zero Lower Bound the NKPC says that inflation should become rather volatile, but that did not appear to happen, a point John Cochrane has stressed.

I could go on and on, and write my own NAIRU bashing piece. But here is the rub. If we really think there is no relationship between unemployment and inflation, why on earth are we not trying to get unemployment below 4%? We know that the government could, by spending more, raise demand and reduce unemployment. And why would we ever raise interest rates above their lower bound?

I’ve been there, done that. While we should not be obsessed by the 1970s, we should not wipe it from our minds either. Then policy makers did in effect ditch the NAIRU, and we got uncomfortably high inflation. In 1980 in the US and UK policy changed and increased unemployment, and inflation fell. There is a relationship between inflation and unemployment, but it is just very difficult to pin down. For most macroeconomists, the concept of the NAIRU really just stands for that basic macroeconomic truth.

A more subtle critique of the NAIRU would be to acknowledge that truth, but say that because the relationship is difficult to measure, we should stop using unemployment as a guide to setting monetary policy. Let’s just focus on the objective, inflation, and move rates according to what actually happens to inflation. In other words forget forecasting, and let monetary policy operate like a thermostat, raising rates when inflation is above target and vice versa.

That could lead to large oscillations in inflation, but there is a more serious problem. This tends to be forgotten, but inflation is not the only goal of monetary policy. Take what is currently happening in the UK. Inflation is rising, and is expected to soon exceed its target, but the central bank has cut interest rates because it is more concerned about the impact of Brexit on the real economy. That shows quite clearly that policy makers in reality target some measure of the output gap as well as inflation. And they are quite right to, because why create a recession just to smooth inflation.

OK, so just target some weighted average of inflation and unemployment like a thermostat. But what level of unemployment? There is a danger that would always mean we would tolerate high inflation if unemployment is low. We know that is not a good idea, because inflation would just go on rising. So why not target the difference between unemployment and some level which is consistent with stable inflation. We could call that level X, but we should try to be more descriptive. Any suggestions?

Keynes never left Canada, and intends to stay

Nick Rowe has a post where he points out that the outgoing Conservatives did not abandon Keynes during the Great Recession. He takes a graph of government spending from an article by Matthew Klein, but we can make the same point be looking at the underlying primary balance. (As I have noted many times, no measure of fiscal stance is ideal. If you want a more detailed analysis of the Canadian macro position than I will give here, read the Klein article.) According to the OECD, this moved from a surplus of 2% of GDP in 2006 to a deficit of 3.2% of GDP in 2010. We saw a similar countercyclical swing in fiscal policy in the US, but whereas that swing was sharply put into reverse in the US, in Canada the deficit was still 1.8% in 2013. (The UK was like the US except the peak deficit was in 2009, and the reverse was well under way by 2010.)

So we saw a classic Keynesian fiscal policy in Canada. Partly as a result, Canadian GDP only fell by 2.7% in 2009 and grew strongly in the next two years. That in turn meant that short interest rates only stayed on their floor for just over a year, and rose to 1% during 2010. So it all looks like a textbook New Keynesian policy, and close to the one recommended in Portes and Wren-Lewis: fiscal expansion helped get interest rates above their lower bound.

That was then. More recently GDP has been falling, and interest rates have been cut to 0.5%. So is it time for a tight fiscal policy, or instead some additional deficit financed public investment? Ask the man on the escalator, the new Canadian Prime Minister. In the election Trudeau played a classic Keynesian card (Labour leadership please note). Both his two opponents criticised this deviation from a balanced budget policy. Trudeau won, so Keynes remains in Canada. While interest rates may not have yet hit their lower bound, it makes sense to borrow to invest when rates are low and when there is a significant risk rates could hit ‘zero’ (Osborne please note).

Unlike governments in Europe and the US, Canada did not dash for austerity just as the recovery was beginning and while interest rates were still on their floor. They had a clear choice a week ago to allow a deficit to finance investment or go for a balanced budget, and they chose the more sensible fiscal policy. I think there are two lessons beyond Canada. First, right wing governments do not have to make major macroeconomic policy mistakes with fiscal policy. Second, voters do not always suffer from deficit fetishism.

Spain, and how the Eurozone has to get real about countercyclical policy

Matthew Klein has a good account of how Spain’s macroeconomic fortunes are improving, but only from a very bad place. I’m not that knowledgeable about the Spanish economy, so I cannot add any detail. However I do want to pick up on one point, which he and others (including Martin Wolf - see below) have made, which I think is wrong and misleading.

Before I do that, I just want to make a general point about the current recovery. At its heart it is export led, which is exactly what you would expect. Just as this post which compares Greece to Ireland shows, the Eurozone does have a natural correction mechanism when a country becomes hopelessly uncompetitive as a result of a temporary domestic boom (whatever its cause). The mechanism is a recession and what economists call ‘internal devaluation’: falling wages and prices. The problem with this correction mechanism is that, on its own, it is slow and painful, particularly when Eurozone inflation is so low.

So the key question is what could Spain have done to avoid having such a painful period of correction. The cause of the problem was the excess private sector borrowing of the pre-crisis period, and the associated capital inflows. This was part of an unsustainable property boom that led to a large current account deficit and rising inflation. (I liked the point that Matthew Klein made about how export orientated firms have recently increased their borrowing. Extra borrowing is not bad if the investment is sound.) What could Spain have done to cool things down? As Matthew Klein points out, Spain already had some sensible macroprudential monetary policies, and it seems likely that more of the same would not have been enough.

Which brings us of course to fiscal policy, and it is here that so many commentators go wrong. They say, correctly, that Spain’s problem was never a profligate government. They say, correctly, that the actual budget was in surplus from 2005-2007. Of course the relevant number is the underlying (cyclical adjusted) balance, and the IMF now thinks that shows a persistent although small deficit. But as Martin Wolf points out, again correctly, the IMF in 2008 thought very differently. As I have said many times in the case of the UK, ex post numbers for pre-crisis cyclically adjusted deficits can be very dodgy because of the depth and persistence of this recession.

The mistake everyone here makes is to judge the appropriate fiscal policy by the size of the deficit. That is like saying that a bigger fiscal stimulus in the US in 2009 was impossible because the deficit was already very large. For an individual country in a currency union the deficit is not the appropriate metric to judge short term fiscal policy. Unless there are very good reasons for believing the economy is too competitive, the appropriate metric is national inflation relative to the Eurozone average. From 2001 to 2007 the GDP deflator (the price of domestically produced goods) for the Eurozone as a whole increased at an average rate of just over 2%. In Spain it increased at an average rate of nearly 4%. 2% excess inflation over 7 years implies a 15% loss in competitiveness. So forget the actual budget deficit or any cyclically corrected version, fiscal policy was just not tight enough.

I have been told so many times that for Spain to have a tighter fiscal policy before the crisis was ‘politically impossible’. If that really is true, then Spain has little to complain about when it comes to the subsequent recession. If you cannot do any better, you have to leave the natural correction mechanism to do its slow and painful work. But I suspect what is ‘politically impossible’ is in part a reflection of the Eurozone’s flawed Stability and Growth pact itself, which focused entirely on deficits.

It seems more than likely that the existing monetary but not fiscal/political union is here to stay for some time. Many in Europe’s political elite plan to move quickly to greater union (see Andrew Watt here), but there are serious obstacles in their path. The current system can be made to work better, and strong countercyclical fiscal policy is an obvious part of that. Combining this with medium term deficit reduction is technically trivial. Just how many years and recessions does it take before what is obvious textbook macroeconomics can become politically acceptable?

After Oxi, what next?

A lot of the commentary on Greece fails to see why the Greek No vote changes anything. This view tends to see the stance of the Eurozone group as simply expressing their own voters’ preferences which will not be changed by what happened yesterday. Here is an alternative reading.

It starts from a simple observation. The Troika will get far less of its money back (if any!) if Greece is forced out of the Eurozone. (I say forced out because Greece does not want to leave, so Greek exit is first and foremost an ECB decision: if you think otherwise read Karl Whelan and Matthew Klein and Paul De Grauwe. [1]) That is why creditors are generally weak in negotiations of this kind. Things are different in this case only because the creditors include the ECB, and Greece wants to stay in the Eurozone. The Troika has played this for all it is worth. They were relying (you could say gambling) on the Greek people, one way or another, deciding that they would agree to the Troika’s demands because they feared Greek exit more.

So far this strategy has failed. First they pushed Tsipras further than he could possibly go, hoping perhaps that Syriza would collapse in recriminations. Tsipras’s response was a unifying referendum. They then gambled that Greece would say no, and they lost that too. Tsipras continues to offer the Troika the chance to be more reasonable. He followed the referendum not with triumphalism but by removing his finance minister. This was both a signal - I really want a deal, even though it will in all probability inflict further (unnecessary) pain on Greece - and a lifeline, because the Troika can now say that an important obstacle to a deal has been removed. (An obstacle, because Varoufakis was too open - something politicians and much of the press hate - and too honest about the other side’s lack of economics.)

Now the Troika seem to face a simple choice. Agree a deal and get a little more heat from your political opponents at home for ‘giving in’, or force Greek exit with the risk that you will get a lot more heat when Greece defaults and people realise you have lost all their money. If they are really just interested in getting as much of their money back as possible, it would seem crazy to throw away their best card by forcing Greece out of the Eurozone.

Of course rationality may not prevail, or interests may be rather different. The IMF may continue to be an unhelpful nuisance. (If you think my criticism of their role was harsh, read this from Peter Doyle.) Some within the Troika will be happy to go for Greek exit because they think nationalist sentiment can overcome any kickback from the subsequent Greek default. Others may fear a deal may encourage anti-austerity sentiment in their own indebted countries.

Unfortunately there is a third possibility, which is probably the worst possible outcome. To prevent any loss of face, the Troika may continue to gamble, waiting for days or even weeks, and watch ECB pressure, together with reluctance by Tsipras to introduce a new currency, gradually bring chaos to the Greek economy. Only then will it negotiate, allowing any deal to be portrayed as the result of desperation by the Greek government. In which case, recent European politics will have reached a new all time low.    

[1] Postscript: Martin Sandbu provides a very clear account.