European central bankers are obsessing about everything else than monetary policy

While it is becoming increasingly clear that Europe is falling into a Japanese style deflationary trap European central bankers continue to refuse to talk about the need for monetary easing to curb deflationary pressures. Instead they seem to be focused on everything else. We have been through it all – the ECB has concerned itself with who was Prime Minister in Greece and Italy about Spanish fiscal policy, rising oil prices in 2011 and about “financial stability”. And believe it or not it has become fashionable for European central bankers to call for higher wages in Germany!

This is from Reuters (on Sunday):

The European Central Bank supports Germany‘s Bundesbank in its appeals for higher wage deals in Germany, Der Spiegel magazine quoted ECB Chief Economist Peter Praet as saying on Sunday.

Low wage agreements were needed in some crisis-hit countries in the euro zone to bolster competitiveness, the magazine quoted Praet as saying.

By contrast, in countries like Germany where “inflation is low and the labour market is in good shape”, higher earnings increases were appropriate, Der Spiegel reported him to have said.

This would help bring average wage developments in the euro zone in line with the ECB’s inflation target of close to 2 percent, his argument continued, said Der Spiegel.

The Bundesbank historically has been a strong advocate of wage restraint, but with euro zone inflation stuck below 1 percent and consumer prices rising just 1.0 percent in June in Germany, Europe’s biggest economy, some fear deflation.

Bundesbank Chief Economist Jens Ulbrich has been widely reported by German media to have encouraged German trade unions to take a more aggressive stance in wage negotiations given low levels of inflation.

First of all one should ask the question why European central bankers in this way would interfere in the determination of prices (wages). The job of the central bank is to provide a nominal anchor – not to have a view on relative prices.

Second you got to wonder what textbook European central bank economists have been reading. It seems like they have completely missed the difference between the supply side and the demand side of the economy.

We know from earlier that ECB Chief Economist Praet seems to have a bit of a problem differentiating between supply and demand shocks. Apparently this is a general problem for Eureopan central bankers – or at least Bundesbank’ Jens Ulbrich suffers from the same problem.

What Ulbrich seems to be arguing is that we should solve Europe’s deflationary problem by basically engineering a negative supply shock to the German economy. The same kind of logic has been used as an argument for the recent misguided increase in German minimum wages.

Hence, it seems like both Praet and Ulbrich actually acknowledge that there is a deflationary problem in Europe, but at the same time they very clearly fail to understand that this is a monetary phenomenon. As a consequence they come up with very odd “solutions” for the problem.

This can be easily demonstrated in a simple Cowen-Tabarak style AS/AD framework – see the graph below.

wage shock

ECB’s overly tight monetary policy has caused aggregate demand to drop shifting the AD curve from AD to AD’, which has caused a drop in inflation to below 2% (likely also soon below 0%).

The Bundesbank now wants to deal with this problem not by doing the obvious – easing monetary policy aggressive – but instead by causing a negative supply shock. Obviously if German labour unions are given further monopoly powers and/or the German minimum wage is increased then that is a negative supply shock – wages increase without an increase in productivity or demand for labour. This causes the AS curve to shift left from AS to AS’.

The result of course would be higher inflation, but real GDP growth would drop further (to y” in the graph). Or said in another way it seems like the Bundebank are advocating “solving” Europe deflationary problem by increasing the structural problems on the German labour market.

Obviously Jens Ulbrich likely would argue that this is not what he means (his reasoning seems to follow a typical 1970s style “Keynesian” macroeconometric model where there is no money and no supply side – higher wage growth cause demand to increase), but that doesn’t matter as the outcome of an exogenous negative supply shock to the German economy would be bad news for Europe rather than good news.

Stop micromanaging the European economy – and do monetary easing

It is about time that European central bankers stop obsessing about matters that have nothing to do with monetary policy – whether it is fiscal policy, financial stability or labour market conditions. They can and not should try to influence these matters. The ECB should just take these matters as given when they conduct monetary policy, but it not for them to influence these matters.

The Bundesbank or the ECB should not have a view on what the level of the public deficit in Spain is or the how much German wages should increase. The first is for the Spanish government to decide on and the second is for German employers and labour unions to negotiate. It is becoming very hard to argue for central bank independence when central bankers (mis)use this independence to interfere in non-monetary matters.

The ECB is failing badly on this at the moment has the risk of falling into a deflationary trap is increase day by day. So why do the Bundesbank and the ECB just not focus on solving that issue? Depressingly the problem is very easy to solve – also without worsening German labour market conditions.

PS The argument for higher wage growth and tight money is very similar to what caused the so-called Recession in the Depression in the US in 1937. The Roosevelt administration got increasingly concerned in 1936-37 that inflation was picking up while wage growth remained weak. The Roosevelt administration feared this would cause real wage to drop, which would cause private consumption to drop and unemployment to increase. This obviously is a very primitive form of Keynesianism (but something Keynes did in fact advocate) and today it should be clear to everybody that political attempts to cause real wages to outpace productivity will lead to higher rather than lower unemployment. And this is what happened in 1937 – the FDR administration troed push up real wages by increasing nominal wage growth and tightening monetary policy caused the recession in 1937.

PPS Unfortunately the Abe government in Japan seems to suffering from the same illusion that “engineering” a rise in real wage – without a similar rise in productivity – can help the Japanese economy.

 

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Never reason from a price change – version #436552

This is ECB’s chief economist Peter Praet in an interview with Les Echos:

 “Normally, a fall in prices would be able to support purchasing power and, therefore, domestic demand. But demand has remained weak, including in the biggest euro area economies”

It seems like Praet is not entirely sure about the difference between supply and demand shocks, but let me just illustrate the dffference in two graphs (I don’t have much time so I did it by hand and with the help of an iPhone…)

ASAD

The European situation is the graph on the right.

The un-anchoring of inflation expectations – 1970s style monetary policy, but now with deflation

In country after country it is now becoming clear that we are heading for outright deflation. This is particularly the case in Europe – both inside and outside the euro area – where most central banks are failing to keep inflation close to their own announced inflation targets.

What we are basically seeing is an un-anchoring of inflation expectations. What is happening in my view is that central bankers are failing to take responsibility for inflation and in a broader sense for the development in nominal spending. Central bankers simply are refusing to provide an nominal anchor for the economy.

To understand this process and to understand what has gone wrong I think it is useful to compare the situation in two distinctly different periods – the Great Inflation (1970s and earlier 1980s) and the Great Moderation (from the mid-1980s to 2007/8).

The Great Inflation – “Blame somebody else for inflation”

Monetary developments were quite similar across countries in the Western world during the 1970s. What probably best describes monetary policy in this period is that central banks in general did not take responsibility for the development in inflation and in nominal spending – maybe with the exception of the Bundesbank and the Swiss National Bank.

In Milton Friedman’s wonderful TV series Free to Choose from 1980 he discusses how central bankers were blaming everybody else than themselves for inflation (see here)

As Friedman points out labour unions, oil prices (the OPEC) and taxes were said to have caused inflation to have risen. That led central bankers like then Fed chairman Arthur Burns to argue that to reduce inflation it was necessary to introduce price and wage controls.

Friedman of course rightly argued that the only way to curb inflation was to reduce central bank money creation, but in the 1970s most central bankers had lost faith in the fundamental truth of the quantity theory of money.

Said in another way central bankers in the 1970s simply refused to take responsibility for the development in nominal spending and therefore for inflation. As a consequence inflation expectations became un-anchored as the central banks did not provide an nominal anchor. The result was predictable (for any monetarist) – the price level driffed aimlessly, inflation increased, became highly volatile and unpredictable.

Another thing which was characteristic about monetary policy in 1970s was the focus on trade-offs – particularly the Phillips curve relationship that there was a trade-off between inflation and unemployment (even in the long run). Hence, central bankers used high unemployment – caused by supply side factors – as an excuse not to curb money creation and hence inflation. We will see below that central bankers today find similar excuses useful when they refuse to take responsibility for ensuring nominal stability.

The Great Moderation – “Inflation is always and everywhere monetary phenomenon” 

That all started to change as Milton Friedman’s monetarist counterrevolution started to gain influence during the 1970s and in 1979 the newly appointed Federal Reserve chairman Paul Volcker started what would become a global trend towards central banks again taking responsibility for providing nominal stability and in the early 1990s central banks around the world moved to implement clearly defined nominal policy rules – mostly in the form of inflation targets (mostly around 2%) starting with the Reserve Bank of  New Zealand in 1990.

Said in the other way from the mid-1980s or so central banks started to believe in Milton Friedman’s dictum that “Inflation is always and everywhere monetary phenomenon” and more importantly they started to act as if they believed in this dictum. The result was predictable – inflation came down dramatically and became a lot more predictable and nominal spending/NGDP growth became stable.

By taking responsibility for nominal stability central banks around the world had created an nominal anchor, which ensured that the price mechanism in general could ensure an efficient allocation of resources. This was the great success of the Great Moderation period.

The only problem was that few central bankers understood why and how this was working. Robert Hetzel obvious was and still is a notable exception and he is telling us that reason we got nominal stability is exactly because central banks took responsibility for providing a nominal anchor.

That unfortunately ended suddenly in 2008.

The Great Recession – back to the bad habits of the 1970s

If we compare the conduct of monetary policy around the world over the past 5-6 years with the Great Inflation and Great Moderation periods I think it is very clear that we to a large extent has returned to the bad habits of the 1970s. That particularly is the case in Europe, while there are signs that monetary policy in the US, the UK and Japan is gradually moving back to practices similar to the Great Moderation period.

So what are the similarities with the 1970s?

1) Central banks refuse to acknowledge inflation (and NGDP growth) is a monetary phenomenon.

2) Central banks are concerned about trade-offs and have multiple targets (often none-monetary) rather focusing on one nominal target. 

Regarding 1) We have again and again heard central bankers say that they are “out of ammunition” and that they cannot ease monetary policy because interest rates are at zero – hence they are indirectly saying that they cannot control nominal spending growth, the money supply and the price level. Again and again we have heard ECB officials say that the monetary transmission mechanism is “broken”.

Regarding 2) Since 2008 central banks around the world have de facto given up on their inflation targets. In Europe for now nearly two years inflation has undershot the inflation targets of the ECB, the Riksbank, the Polish central bank, the Czech central bank and the Swiss National Bank etc.

And to make matters worse these central banks quite openly acknowledge that they don’t care much about the fact that they are not fulfilling their own stated inflation targets. Why? Because they are concerning themselves with other new (ad hoc!) targets – such as the development in asset prices or household debt.

The Swedish Riksbank is an example of this. Under the leadership of Riksbank governor the Stefan Ingves the Riksbank has de facto given up its inflation targeting regime and is now targeting everything from inflation, credit growth, property prices and household debt. This is completely ad hoc as the Riksbank has not even bothered to tell anybody what weight to put on these different targets.

It is therefore no surprise that the markets no longer see the Riksbank’s official 2% inflation target as credible. Hence, market expectations for Swedish inflation is consistency running below 2%. In 1970s the Riksbank failed because it effectively was preoccupied with hitting an unemployment target. Today the Riksbank is failing – for the same reason: It is trying to hit another other non-monetary target – the level of household debt.

European central bankers in the same way as in the 1970s no longer seem to understand or acknowledge that they have full control of nominal spending growth and therefore inflation and as a consequence they de facto have given up providing a nominal anchor for the economy. The result is that we are seeing a gradual un-anchoring of inflation expectations in Europe and this I believe is the reason that we are likely to see deflation becoming the “normal” state of affairs in Europe unless fundamental policy change is implemented.

Every time we get a new minor or larger negative shock to the European economy – banking crisis in Portugal or fiscal and political mess in France – we will just sink even deeper into deflation and since there is nominal anchor nothing will ensure that we get out of the deflationary trap. This is of course the “Japanese scenario” where the Bank of Japan for nearly two decade refused to take responsibility for providing an nominal anchor.

And as we continue to see a gradual unchoring of inflation expectations it is also clear that the economic system is becomimg increasingly dysfunctional and the price system will work less and less efficiently – exactly as in the 1970s. The only difference is really that while the problem in 1970s was excessively high inflation the problem today is deflation. But the reason is the same – central banks refusal to take responsibility for providing a nominal anchor.

Shock therapy is needed to re-anchor inflation expectations

The Great Inflation came to an end when central banks around the world finally took responsibility for providing a nominal anchor for the economy through a rule based monetary policy based on the fact that the central bank is in full control of nominal spending growth in the economy. To do that ‘shock therapy’ was needed.

For example example the Federal Reserve starting in 1979-82 fundamentally changed its policy and communication about its policy. It took responsibility for providing nominal stability. That re-anchored inflation expectations in the US and started a period of a very high level of nominal stability – stable and predictable growth in nominal spending and inflation.

To get back to a Great Moderation style regime central banks need to be completely clear that they take responsibility for for ensuring nominal stability and that they acknowledge that they have full control of nominal spending growth and as a consequence also the development in inflation. That can be done by introducing a clear nominal targeting – either restating inflation targets or even better introducing a NGDP targeting.

Furthermore, central banks should make it clear that there is no limits on the central bank’s ability to create money and controlling the money base. Finally central banks should permanently make it clear that you can’t have your cake and eat it – central banks can only have one target. It is the Tinbergen rule. There is one instrument – the money base – should the central bank can only hit one target. Doing anything else will end in disaster. 

The Federal Reserve and the Bank of Japan have certainly moved in that direction of providing a nominal anchor in the last couple of years, while most central banks in Europe – including most importantly the ECB – needs a fundamental change of direction in policy to achieve a re-anchoring of inflation expectations and thereby avoiding falling even deeper into the deflationary trap.

—-

PS This post has been greatly inspired by re-reading a number of papers by Robert Hetzel on the Quantity Theory of Money and how to understand the importance of central bank credibility. In that sense this post is part of my series of “Tribute posts” to Robert Hetzel in connection with his 70 years birthday.

PPS Above I assume that central banks have responsibility for providing a nominal anchor for the economy. After all if a central bank has a monopoly on money creation then the least it can do is to live up to this responsibility. Otherwise it seems pretty hard to argue why there should be any central bank at all.

Hollande’s Danish spectacles – Is France the next trouble spot in the euro zone?

This is from the Telegraph:

François Hollande has been urged to drop his new dark-rimmed Danish designer spectacles for ones “Made in France”, with Gallic makers saying his choice is unpatriotic at a time when the government is promoting home-grown products.

Domestic spectacle makers saw red when they discovered two weeks ago that their Socialist president had exchanged his old French rimless glasses for rectangular, retro Scandinavian ones.

The directors of a company called Roussilhe, near Nantes, western France and employing 35 people, decided to send him a pair of similar specs “but 100 per cent made in France” with a label guaranteeing proof of origin.

The pair came with a letter in which the bosses fretted about the “intense international competition” they faced, the need to “bolster local savoir-faire” and “to retain our jobs after two decades of layoffs”.

“By wearing our glasses, you will become an ambassador of French spectacles around the world,” they wrote.

Mr Hollande, whose office pointed out that the lenses of his current glasses are in fact French and only the frames foreign, reportedly phoned the company no sooner had he read the letter and offered to buy another pair of their sunglasses for the summer on the spot.

A second French company then waded in, with Sabine Begault Vagner from Orleans sending him a “pretty pair of blue and red rectangular glasses”. The Elysée rang her too, saying the president would use them as his spares.

The “spectacle affair” emerged on the day that Arnaud Montebourg, France’s flamboyant economy minister was due to unveil his “roadmap for French economic recovery”, including a plan to create “tamper-proof” secret codes on tags for wine, foie gras and other local products to promote “le Made in France”.

Besides irking French spectacle makers, Mr Hollande’s change in glasses has triggered furious debate among political observers over their symbolism.

Jacques Séguéla, the advertising guru, said the new glasses were “final proof of his reformist coming of age”.

It is rumoured that the Danish Prime Minister recently had a glass of French red wine. There was no public uproar over that in Denmark.

But given this story it is hard not to think why France will not be the next euro zone country to get into (renewed) trouble…

 

 

“God forbid that our policy should ever work”

This is Mario Draghi at the ECB’s press conference yesterday:

“Meanwhile, inflation expectations for the euro area over the medium to long term continue to be firmly anchored in line with our aim of maintaining inflation rates below, but close to, 2%. Looking ahead, the Governing Council is strongly determined to safeguard this anchoring.”

You got to ask yourself why you would ease monetary policy if you don’t want inflation expectations to increase. And ask yourself if the market will believe this will work if the ECB is so eager to say that the policy will not increase inflation expectations.

It all just feel so Japanese – pre-Kuroda…

HT Nicolas Goetzmann

 

The massively negative euro zone ‘money gap’ (another one graph version)

Earlier today I put out post with ‘one graph’ illustrating just how much behind the curve the ECB is in terms of needed monetary easing. At the core of that blog post was a graph of the ‘price gap’. I defined the price gap as the percentage difference between the actual price level (measured with the GDP deflator) and a 2% path.

David Laidler has asked me how the ‘two graph’ version of the post would have looked. The other graph of course being the (broad) money supply rather than price level.

David, take a look at this graph:

money gap euro zone

We know from my earlier post that the ECB prior to 2008 basically was able to keep the actual price level very close to the ‘targeted’ price level (the 2% path). Therefore, we will also have to conclude that the actual money supply (M3) level was more or less right. Hence, if we assume an unchanged trend in money-velocity then it reasonable to also assume that the pre-crisis trend is the trend in the money supply necessary to return the price level to the pre-2008 trend.

I define the ‘money gap’ the percentage difference between the actual M3 level and the pre-2008 trend-level. The graph is extremely scary – the ‘money gap’ is now -30%! Said in another way – the ECB needs to expand M3 by 30% to bring prices back to the pre-crisis trend level or the ECB needs to engineer a massive change in expectations to push up money-velocity.

Don’t tell me that the ECB doesn’t need to do massive QE to avoid deflation…

PS I have chosen to ignore commenting on ECB’s policy decision earlier today, but lets just say that today’s action is unlikely to do much about the deflationary risks in the euro zone. Outright QE is needed.

PPS I have earlier discussed the euro zone ‘money gap’. See for example here.

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The ECB is way behind the curve (the one graph version)

The ECB is today widely expected to introduce a number of measures to ease monetary conditions in the euro zone and it seems like the ECB is finally beginning to recognize the serious deflationary risks facing the euro zone.

But how far behind the curve is the ECB? There are a lot of measures of that, but if we look at the ECB’s own stated goal of 2% inflation then we will see that the ECB has basically failed consistently since 2008.

Below I look at the the level of the GDP deflator (which I believe is a better indicator of inflation than the ECB’s prefered measure – the HCIP inflation).

Price gap ECB

I think the graph very well illustrates just how big the ECB’s policy failure has been since 2008. From 1999 to 2008 the ECB basically kept the actual price level on a straight 2% path in line with its stated policy goal. However, since 2008 GDP deflator-inflation has consistently been well-below the 2%. As a result what I here call the price gap - the percentage difference between the actual price level and the 2% path – has kept on widening so the gap today is around 4%.

This is a massive policy mistake – and this is why the euro zone remains in crisis – and given the fact that we are basically not seeing any broad money supply growth at the moment the price gap is very likely to continue to widen. In fact outright deflation seems very likely if the ECB once again fails to take decisive action.

What should be done? It is really easy, but the ECB is likely to make it complicated 

At the ECB in Frankfurt they are happy to repeat Milton Friedman’s dictum that inflation is always and everywhere a monetary phenomenon. So it should be really simple – if you have less than 2% inflation and want to ensure 2% inflation then you need to create more money. Unfortunately the ECB seems to think that it is in someway ‘dirty’ to create money and therefore we are unlikely to see any measures today to actually create money.

Most analysts expect a cut in ECB’s deposit rate to negative territory and maybe a new LTRO and even some kind of lending scheme to European SMEs. But all of that is basically credit policies and not monetary policy. Credit policy has the purpose of distorting market prices – and that shouldn’t really be the business of central banks – while monetary policy is about hitting nominal variables such as the price level or nominal spending by controlling the money base (money creation).

The ECB needs to stop worrying about credit markets and instead focus on ensuring nominal stability. So to me it is very simple. Today Mario Draghi simply should announce that the ECB has failed since 2008, but that that will now change.

He should pre-commit to bringing back the price level to the ‘old’ trend within the next two years and do that he should keep expanding the euro zone money base (by buying a basket of GDP weight euro zone government bonds) until he achieves that goal and he should make is completely clear that there will be no limits to the expansion of the money base. The sole purpose of his actions will be to ensure that the price level is brought back on track as fast as possible.

Once the price level is brought back to the old trend it should be kept on this 2% trend path.

How hard can it be?

PS Yes, I fundamentally would like the ECB to target the nominal GDP level, but targeting the GDP deflator price level would be pretty close to my preferred policy.

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Sam Bowman calls for nominal spending targeting in the euro zone

My friend Sam Bowman, Research Director at the Adam Smith Institute, has written a letter to the Financial Times calling for the introduction of a nominal spending target in the euro zone. This is from Sam’s letter:

…While supply-side reforms are usually helpful and fiscal integration may help some eurozone states, Europe’s main problem is monetary.

Nominal spending has collapsed in the eurozone since 2008 and is still well below its pre-crisis trend level. As a result, Europe’s unemployed face a problem of musical chairs: too many jobseekers chasing too little money.

The eurozone’s best hope is for the European Central Bank to pursue a more expansionary monetary policy to raise nominal spending in the eurozone to its pre-crisis trend level, and commit to a nominal spending target thereafter.

Monetary chaos is the source of Europe’s woes: only monetary stability will overcome them.

I fully agree. The ECB can end the European crisis tomorrow by introducing a nominal spending target. Even a very modest proposal of 4% nominal GDP growth targeting would do the trick. Unfortunately nobody in Frankfurt or Brussels seems to be listening.

The “Weidmann rule” and the asymmetrical budget multiplier (is the euro zone 50% keynesian?)

During Christmas and New Years I have been able to (nearly) not think about monetary policy and economics, but I nonetheless came across some comments from Bundesbank chief Jens Weidmann from last week, which made me think about the connection between monetary policy rules and fiscal austerity in the euro zone. I will try address these issues in this post.  

This is Jens Weidmann:

“The euro zone is recovering only gradually from the harshest economic crisis in the post-war period and there are few price risks. This justifies the low interest rate…Low price pressure however cannot be a licence for arbitrary monetary easing and we must be sure to raise rates at the right time should inflation pressure mount.”

It is the second part of the quote, which is interesting. Here Weidmann basically spells out his preferred reaction function for the ECB and what he is saying is that he bascially wants an asymmetrical monetary policy rule – when inflation drops below the ECB’s 2% inflation target the ECB should not “arbitrary” cut its key policy rate, but when inflation pressures increase he wants the ECB to act imitiately.

It is not given that the ECB actually has such a policy rule, but given the enormous influence of the Bundesbank on ECB policy making it is probably reasonable to assume that that is the case. That in my view would mean that Summer Critique does not apply (fully) to the euro zone and as a result we can think of the euro zone as being at least 50% “keynesian” in the sense that fiscal shocks will not be fully offset by monetary policy. As a result it would be wrong to assume that the budget multiplier is zero in the euro zone – or rather it is not always zero. The budget multiplier is asymmetrical.

Let me try to illustrate this within a simple AS/AD framework.

First we start out with a symmetrical policy rule – an inflation targeting ECB. Our starting point is a situation where inflation is at 2% – the ECB’s official inflation target – and the ECB will move to offset any shock (positive and negative) to aggregate demand to keep inflation (expectations) at 2%. The graph below illustrates this.

ASAD AD shock

If the euro zone economy is hit by a negative demand shock in the form of for example fiscal tightening across the currency union the AD curve inititally shifts to the left (from AD to AD’). This will push inflation below the ECB’s 2% inflation target. As this happens the ECB will automatically move to offset this shock by easing monetary policy. This will shift the AD curve back (from AD’ to AD). With a credible monetary policy rule the markets would probably do most of the lifting.

The Weidmann rule – asymmetry rules

However, the Weidmann rule as formulated above is not symmetrical. In Weidmann’s world a negative shock to aggregate demand – for example fiscal tightening – will not automatically be offset by monetary policy. Hence, in the graph above the negative shock aggregate demand (from AD to AD’) will just lead to a drop in real GDP growth and in inflation to below 2%. Given the ECB’s official 2% would imply the ECB should move to offset the negative AD shock, but that is not the case under the Weidmann rule. Hence, under the Weidmann rule a tightening of fiscal policy will lead to drop in aggregate demand. This means that the fiscal multiplier is positive, but only when the fiscal shock is negative.

This means that the Sumner Critique does not hold under the Weidman rule. Fiscal consolidation will indeed have a negative impact on aggregate demand (nominal spending). In that sense the keynesians are right – fiscal consolidation in the euro zone has likely had an negative impact on euro zone growth if the ECB consistently has followed a Weidmann rule. Whether that is the case or not is ultimately an empirical question, but I must admit that I increasingly think that that is the case. The austerity drive in the euro zone has likely been deflationary. However, it is important to note that this is only so because of the conduct of monetary policy in the euro area. Had the ECB instead had an fed style Evans rule with a symmetrical policy rule then the Sumner Critique would have applied also for the euro area.

The fact that the budget multiplier is positive could be seen as an argument against fiscal austerity in the euro zone. However, interestingly enough it is not an argument for fiscal stimulus.  Hence, according to Jens Weidmann the ECB “must be sure to raise rates at the right time should inflation pressure mount”. Said in another way if the AD curve shifts to the right – increasing inflation and real GDP growth then the ECB should offset this with higher interest rates even when inflation is below the ECB’s 2% inflation target.

This means that there is full monetary offset if fiscal policy is eased. Therefore the Sumner Critique applies under fiscal easing and the budget multiplier is zero.

The Weidmann rule guarantees deflation 

Concluding, with the Weidmann rule fiscal tightening will be deflationary – inflation will drop as will real GDP growth. But fiscal stimulus will not increase aggregate demand. The result of this is that if we assume the shocks to aggregate demand are equally distributed between positive and negative demand shocks the consequence will be that we over time will see the difference between nominal GDP in the US and the euro become larger and larger exactly because the fed has a symmetrical monetary policy rule (the Evans rule), while the ECB has a asymmetrical monetary policy rule (the Weidmann rule).

This is of course exactly what we have seen over the past five years. But don’t blame fiscal austerity – blame the Weidmann rule.

NGDP euro zone USA

PS I should really acknowledge that this is a variation over a theme stressed by Larry Summers and Brad Delong in their paper Fiscal Policy in a Depressed Economy. See my discussion of that paper here.

ECB: “We’re not sure we can get out of it”

When Milton Friedman turned 90 years back in 2002 Ben Bernanke famously apologized for the Federal Reserve’s role in the Great Depression:

Let me end my talk by abusing slightly my status as an official representative of the Federal Reserve. I would like to say to Milton and Anna: Regarding the Great Depression. You’re right, we did it. We’re very sorry. But thanks to you, we won’t do it again.

On Twiiter Ravi Varghese has paraphrased Bernanke to describe the role of the ECB in the present crisis:

“You’re right, we did it. We’re very sorry. But we’re not sure we can get out of it.”

Brilliant…follow Ravi on Twiiter here (and follow me here).

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