Posts Tagged ‘inflation’

Does Price Stability Entail Financial Stability?

May 4, 2015 3 comments

I reproduce here a post I wrote with Paul Hubert, published on the blog de l’OFCE in English and in French.

Paul Krugman raises the very important issue of the impact of monetary policy on financial stability. He starts with the well-known observation that, contrary to the predictions of some, expansionary monetary policy did not lead to inflation during the current crisis. He then continues arguing that tighter monetary policy would not necessarily guarantee financial stability either. If the Fed were to revert to a more standard Taylor rule, financial stability would not follow. As Krugman aptly argues, “That rule was devised to produce stable inflation; it would be a miracle, a benefaction from the gods, if that rule just happened to also be exactly what we need to avoid bubbles.

Krugman in fact takes position against the “conventional wisdom”, which has been widespread in academic and policy circles alike, that a link exists between financial and price stability; therefore the central bank can always keep in check financial instability by setting an appropriate inflation target.

The global financial crisis is a clear example of the fallacy of this conventional wisdom, as financial instability built up in a period of great moderation. A recent analysis by Blot et al shows that the crisis is no exception, as over the past few decades, in the US and the Eurozone, the link between price and financial stability has been unclear and moreover unstable over time, as shown on the following figure.


We therefore subscribe to Krugman’s view that financial stability should be targeted by combining macro- and micro-prudential policies, and that inflation targeting is largely insufficient. In another work, Blot et al argue that the ECB should be endowed with a triple mandate for financial and macroeconomic stability, along with price stability. They further argue that the ECB should be given the instruments to effectively pursue these three, sometimes conflicting objectives.

Raise Fed Rates Now?

March 23, 2015 4 comments

A quick note on the US and the Fed. Pressure for rate rises never really stopped, but lately it has intensified. Today I read on the FT that James Bullard, Saint Louis Fed head, urges Janet Yellen to raise rates as soon as possible, to avoid “devastating asset bubbles”. Just a few months ago we learned that QE was dangerous because, once again through asset price inflation, it led to increasing inequality. Not to mention the inflationistas (thanks PK for the great name!) who since 2009 have been predicting Weimar-type inflation because of irresponsible Fed behaviour (a very similar pattern can be found in the EMU). Let’s play the game, for the sake of argument. After all, asset price inflation, and distortions in general are not unlikely in the current environment. So let’s assume that the Fed suddenly were convinced by its critics, and turned its policy stance to restrictive (hopefully this is just a thought experiment). I have two related questions to rate-raisers (the same two questions apply to QE opponents in the EMU):

  1. Do they think that private expenditure is healthy enough to grow and to sustain economic activity without the oxygen tent of monetary policy?
  2. If not, would they be willing to accept that monetary restriction is accompanied by a fiscal expansion?

I am afraid we all know the answer, at least to the second of these questions. Just yesterday, on Italian daily Il Corriere della Sera, Alberto Alesina and Francesco Giavazzi called for public expenditure cuts, invoking the confidence fairy and expansionary austerity (yes, you have read well. Check for yourself if you understand Italian. And check the date, it is 2015, not 2007) What Fed (and ECB) bashers tend to forget, in conclusion, is that central bankers are at the center of the stage, reluctantly, because they have to fill the void left, for different reasons, by fiscal policy.  Look at the fiscal stance for the US: 2015_03_Fiscal_Impulse_1 Fiscal impulse, the discretionary stance of the US government, was positive only in 2008-2009, and has been restrictive since then. In other words, while the US were experiencing the worse crisis since the 1930s, while recovery was sluggish and jobless, the US government was pushing the brake. We all know why: political blockage and systematic boycott, by one side of Congress, of each and every one of the measures proposed by the administration (that was a bit too timid, if I may say so). Whatever the reasons, the fact remains that fiscal policy was of very limited help during the crisis. What do Fed bashers have to say about this? What would have happened if, faced with procyclical fiscal policy, the Fed had not stepped in with QE? I am afraid their answer would once again turn around confidence fairies… The EMU is pretty much in the same situation. The following figure shows the cumulative fiscal impulse since 2008 for a number of countries: 2015_03_Fiscal_Impulse_2   The figure speaks for itself. With the exception of Japan (thanks Abenomics!) governments overall acted as brakes for the economy (Alesina and Giavazzi should look at the data for Italy, by the way). Central banks had to act in the thunderous silence of fiscal policy. So I repeat my question once again: who would be willing to exchange a normalization of monetary policy with a radical change in the fiscal stance? To conclude, yes, monetary policy has been very proactive (even Mario Draghi’s ECB); yes, this led us in unchartered lands, and we do not fully grasp what will be the long term effects of QEs and unconventional monetary policies; yes, some distortions are potentially dangerous.  But central bankers had no choice. We are in a liquidity trap, and the main tool to be used should be fiscal policy. Monetary policy could and should be normalized, if only fiscal policy would finally take the witness, and the burden to lift the economy out of its woes; if fiscal policy finally tackled the increasing inequality that is choking the economy. If fiscal policy did its job, in other words.

I don’t know why, but I have the feeling that Janet Yellen and Mario Draghi would not completely disagree.

Mr Sinn on EMU Core Countries’ Inflation

December 17, 2014 16 comments

Two weeks ago I received a request from Prof Sinn to make it known to my readers that he feels misrepresented by my post of September 29. Here is his very civilized mail, that I publish with his permission:

Dear Mr. Saraceno,
I have just become acquainted with your blog: You misrepresent me here. In my book The Euro Trap. On Bursting Bubbles, Budgets and Beliefs, Oxford University Press 2014, and in many other writings, I advise against extreme deflation scenarios for southern Europe because of the grievous effects upon debtors. I explicitly draw the comparison with Germany in the 1929 – 1933 period. I advocate instead a mixed solution with moderate deflation in southern Europe and  more inflation in northern Europe,  Germany in particular. In addition, I advocate a debt conference for southern Europe and a “breathing currency union” which allows for temporary exits of those southern European countries for which the stress of an internal adjustment would be unbearable. You may also wish to consult my paper “Austerity, Growth and Inflation: Remarks on the Eurozone’s Unresolved Competitiveness Problem”, The World Economy 37, 2014, p. 1-1,, in which I also argue for more inflation in Germany to solve the Eurozone’s problem of distorted relative prices.  I would be glad if you could make this response known to your readers.

Sincerely yours
Hans-Werner Sinn
Professor of Economics and Public Finance
President of CESifo Group

I was swamped with end of semester duties, and I only managed to read the paper (not the book) this morning. But in spite of Mr Sinn’s polite remarks, I stand by my statement (spoiler alert: the readers will find very little new content here). True, in the paper Mr Sinn advocates some inflation in the core (look at sections 9 an 10). In particular, he argues that

What the Eurozone needs for its internal realignment is a demand-driven boom in the core countries. Such a boom would also increase wages and prices, but it would do so because of demand rather that supply effects. Such demand-driven wage and price increases would come through real and nominal income increases in the core and increasing imports from other countries, and at the same time, they would undermine the competitiveness of exports. Both effects would undoubtedly work to reduce the current account surpluses in the core and the deficits in the south.

This is a diagnosis that we share But the agreement stops around here. Where we disagree is on how to trigger the demand-driven boom. Mr Sinn expects this to happen thanks to market mechanisms, just because of the reversal of capital flows that the crisis triggered. He argues that the capital which foolishly left Germany to be invested in peripheral countries, being repatriated would trigger an investment and property boom in Germany, that would reduce German’s current account surplus. This and this alone would be needed. Not a policy of wage increases, useless, nor a fiscal expansion even more useless.

Problem is, the data speak against Mr Sinn’s belief. Since the crisis hit, capital massively left peripheral countries, and yet this did not fuel domestic demand in Germany. Last August I showed the following figure:


It shows that after a drop (in the acute phase of the financial crisis) due to a sharp decline of GDP, since 2009 domestic demand as a percentage of GDP kept decreasing, in Germany as well as in the rest of the Eurozone. The reversal of capital flows depressed demand in the periphery, but did not boost it in Germany. Mr Sinn is too skilled an economist to fail to see this. The reason is, of course, that the magic investment boom did not happen:

2014_12_17_Sinn_1Mr Sinn, being a fine economist, could object that this is because GDP, the denominator, grew more fell less in Germany than in the rest of the EMU. Well, think again.

2014_12_17_Sinn_2Yes, France comes out as investing (privately) less than Germany. But we are far from an investment boom in Germany as well. Mr Sinn, will agree, I ma sure.

What basically happened, I said it before, is that adjustment was not symmetric. Peripheral countries reduced their excess demand, while Germany and the core did not reduce their excess savings. The result is that, if we compare 2007 to 2014, external imbalances of the periphery were greatly reduced or reversed, while with the exception of Finland the core did not do its homework:

2014_12_17_Sinn_0The EMU as a whole became a large Germany, running a current account surplus (it was more or less in balance in 2007), and relying on its exports for growth. A very dubious strategy in the long run.

The conclusion in my opinion is one and only one: We cannot count on markets alone, in the current macroeconomic situation, if we want rebalancing to take place. In the article he suggested I read, Mr Sinn states that a 4 or 5 per cent inflation rate would be politically impossible to sell to the German public:

Moreover, it is unclear whether the German population would accept being deprived of their savings. Given the devastating experiences Germany made with hyperinflation from 1914 to 1923, which in the end undermined the stability of its society, the resistance against an extended period of inflation in Germany could be as strong or even stronger than the resistance against deflation in southern Europe. After all, a rate of 4.1 per cent for German inflation for 10 years, which would be necessary to allow the necessary realignment between France and Germany without France sliding into a deflation, would mean that the German price level would increase by 50 per cent and that, in terms of domestic goods, German savers would be deprived of 33 per cent of their wealth. If the German inflation rate were even 5.5 per cent, which would be necessary to accommodate the Spanish realignment without price cuts, its price level would increase by 71 per cent over a decade and German savers would be deprived of 42 per cent of their wealth.

This shows all the logic of Ordoliberalism: It is impossible to sell inflation to the the German public, because this would deprive them of their savings. This argument only makes sense if one subscribes to the Berlin View that the bad guys in the south partied with hard earned money of northern (hard) workers. Otherwise the argument makes no sense at all, as high inflation in the core for next few years simply  compensates low inflation in the past. Should I remind Mr Sinn that the outlier in terms of labour costs  is not the EMU periphery, but Germany?

Also, I find it disturbing that, while acknowledging that inflation in Germany would be needed, Mr Sinn rejects it on the ground that it would be a hard sell. The role of intellectuals and academics is mostly to discuss, find solutions (or at least try), and then argue for them. All the more so if this is unpopular, because it is then that their pedagogical role is most needed. All too often public intellectuals abdicate to their role, and simply follow the trend. Should we all argue in favour of a euro breakup only because public opinion is less and less favorable to the single currency?

Finally, a short comment on another bit of Mr Sinn’s article:

And although the core countries would suffer [from high inflation], the solution would not be comfortable for the devaluating countries either. They will unavoidably face a long-lasting stagnation with rising mass unemployment and increasing hardship for the population at large. People will turn away from the European idea, and voices opting for exiting the euro will gain strength. Thus, it might be politically impossible to induce the necessary differential inflation in the Eurozone.

I don’t really see his point here. But let’s take it for good, just for the sake of argument. I think it is too late to worry about support for the euro in the periphery. It is hard to see how “excessive” inflation in the core would impose more hardness than seven years of adjustment, ill-conceived structural reforms, and self-defeating austerity.

So Mr Sinn, thank you for your mail and for the reference to your paper that I have read with interest. But no, I don’t think I misrepresented you.  The core of your argument remains that the burden of adjustment should rest on the periphery’s shoulders. And you failed to convince me that this is right.

Walls Come Tumbling Down

August 16, 2014 9 comments

Yesterday I quickly commented the disappointing growth data for Germany and for the EMU as a whole, whose GDP Eurostat splendidly defines “stable”. This is bad, because the recovery is not one, and because we are increasingly dependent on the rest of the world for that growth that we should be able to generate domestically.

Having said that, the real bad news did not come from Eurostat, but from the August 2014 issue of the ECB monthly bulletin, published on Wednesday. Thanks to Ambrose Evans-Pritchard I noticed the following chart ( page 53):

The interesting part of the chart is the blue dotted line, showing that the forecasters’ consensus on longer term inflation sees more than a ten points drop of the probability that inflation will stay at 2% or above. Ten points in just a year. And yet, just a few pages above we can read:

According to Eurostat’s flash estimate, euro area annual HICP inflation was 0.4% in July 2014, after 0.5% in June. This reflects primarily lower energy price inflation, while the annual rates of change of the other main components of the HICP remained broadly unchanged. On the basis of current information, annual HICP inflation is expected to remain at low levels over the coming months, before increasing gradually during 2015 and 2016. Meanwhile, inflation expectations for the euro area over the medium to long term continue to be firmly anchored in line with the aim of maintaining inflation rates below, but close to, 2% (p. 42, emphasis added) 

The ECB is hiding its head in the sand, but expectations, the last bastion against deflation, are obviously not firmly anchored. This can only mean that private expenditure will keep tumbling down in the next quarters. It would be foolish to hope otherwise.

So we are left with good old macroeconomic policy. I did not change my mind since my latest piece on the ECB. Even if the ECB inertia is appalling, even if their stubbornness in claiming that everything is fine (see above) is more than annoying, even if announcing mild QE measures in 2015 at  the earliest is borderline criminal, it remains that I have no big faith in the capacity of monetary policy to trigger decent growth.  The latest issue of the ECB bulletin also reports the results of the latest Eurozone Bank Lending Survey. They show a slow easing of credit conditions, that proceed in parallel with a pickup of credit demand from firms and households. While for some countries credit constraints may play a role in keeping private expenditure down (for example, in Italy), the overall picture for the EMU is of demand and supply proceeding in parallel. Lifting constraints to lending, in this situation, does not seem likely to boost credit and spending. It’s the liquidity trap, stupid!

The solution seems to be one, and only one: expansionary fiscal policy, meaning strong increase in government expenditure (above all for investment) in countries that can afford it (Germany, to begin with); and delayed consolidation for countries with struggling public finances. Monetary policy should accompany this fiscal boost with the commitment to maintain an expansionary stance until inflation has overshot the 2% target.

For the moment this remains a mid-summer dream…


ECB: One Size Fits None

March 31, 2014 18 comments

Eurostat just released its flash estimate for inflation in the Eurozone: 0.5% headline, and 0.8% core. We now await comments from ECB officials, ahead of next Thursday’s meeting, saying that everything is under control.

Just this morning, Wolfgang Münchau in the Financial Times rightly said that EU central bankers should talk less and act more. Münchau also argues that quantitative easing is the only option. A bold one, I would add in light of todays’ deflation inflation data. Just a few months ago, in September 2013, Bruegel estimated the ECB interest rate to be broadly in line with Eurozone average macroeconomic conditions (though, interestingly, they also highlighted that it was unfit to most countries taken individually).

In just a few months, things changed drastically. While unemployment remained more or less constant since last July, inflation kept decelerating until today’s very worrisome levels. I very quickly extended the Bruegel exercise to encompass the latest data (they stopped at July 2013). I computed the target rate as they do as


(if you don’t like the choice of parameters, go ask the Bruegel guys. I have no problem with these). The computation gives the following:


Using headline inflation, as the ECB often claims to be doing, would of course give even lower target rates. As official data on unemployment stop at January 2014, the two last points are computed with alternative hypotheses of unemployment: either at its January rate (12.6%) or at the average 2013 rate (12%). But these are just details…

So, in addition to being unfit for individual countries, the ECB stance is now unfit to the Eurozone as a whole. And of course, a negative target rate can only mean, as Münchau forcefully argues, that the ECB needs to get its act together and put together a credible and significant quantitative easing program.

Two more remarks:

  • A minor one (back of  the envelope) remark is that given a core inflation level of 0.8%, the current ECB rate of 0.25%, is compatible with an unemployment gap of 1.95%. Meaning that the current ECB rate would be appropriate if natural/structural unemployment was 10.65% (for the calculation above I took the value of 9.1% from the OECD), or if current unemployment was 11.5%.
  • The second, somewhat related but more important to my sense, is that it is hard to accept as “natural” an unemployment rate of 9-10%. If the target unemployment rate were at 6-7%, everything we read and discuss on the ECB excessively restrictive stance would be significantly more appropriate. And if the problem is too low potential growth, well then let’s find a way to increase it

Overheat to Raise Potential Growth?

March 19, 2014 4 comments

Update, March 20th: Speaking of ideological biases concerning inflation, Paul Krugman nails it, as usual.

On today’s Financial Times, Phillip Hildebrand gives yet another proof of unwarranted inflation terror. His argument is not new: In spite of the consensus on a weak recovery, the US economy may be close to its potential , so that further monetary stimulus would eventually be inflationary.

He then deflects (?) the objection that decreasing unemployment reflects decreasing labour force participation rather than new employment, by suggesting that it is hard to know how many of the 13 millions jobs missing are structural, i.e.not linked to the crisis. I think it is worth quoting him, because otherwise it would be hard to believe:

However, an increasingly vocal group of observers, including within the Fed, posits that more of the fall in the participation rate appears to have been structural than cyclical, and it was even predictable – the result of factors such as an ageing workforce and the effect of technology on jobs.

(the emphasis is mine). Now look at this figure, quickly produced from FRED data: Read more