Politics muddies the waters of Scotland and the pound

It's simple, until it's not.

Simon Wren-Lewis digests the Treasury's report on the relationship an independent Scotland would have with sterling and the Bank of England (rUK is his shorthand for the UK excluding Scotland):

The real problem for Scotland is that, in forming a sterling currency union, it will be dealing with a government that thinks like Germany. What is worse, although Germany can sometimes be persuaded to go against its austerity instincts for the sake of European unity, after an independence vote rUK is unlikely to let its heart strings be pulled in a similar way! The problem for Scotland is that the rUK can provide something that in fact costs it very little, but the absence of which would cost Scotland a great deal, so rUK will be able to ask for a high price. Unless the new Scottish government is prepared to pay for a Bank of England LOLR role with some of its oil revenues, it may find it has nothing to bargain with. If no agreement can be found, the Treasury paper is quite right to conclude that using sterling unilaterally would not be attractive for Scotland. So rather than accept damaging fiscal restrictions, the new Scottish government may end up with its own currency after all.

George Osborne is right to present the Treasury's analysis as a stumbling block for the SNP, in other words; but he's slightly disingenuous in pretending that he has nothing to do with that fact.

As Wren-Lewis points out, politics muddies all waters. Normally, the study of Optimal Currency Areas is relatively simple: the more alike two countries are, the greater the benefits of having a shared currency, and the lesser the disbenefits. That's why the euro is such a startlingly bad idea on paper – there's basically no possible group of countries less economically, socially and politically coherent than the eurozone. And in in nations like rUK and Scotland, which are pretty damn similar, the whole deal comes down to one basic question: is the loss of flexibility of monetary policy a worthwhile cost to pay for those benefits?

But that assumes that there is any way a currency union between rUK and Scotland could actually exist as a union. It's a political, not an economic question: what possible scenarios can we imagine in which the Bank of England would view the Scottish economy as anything other than entirely subordinate to the interests of rUK's? And, moreover, what possible scenarios can we imagine in which an actually existing rUK government – as short-termist, economically-illiterate and vindictive as they tend to be – would allow that to happen?

It may just be the case that the rUK would be better off if the Bank of England carried its policy equitably, allowing the rUK to take a hit to ensure the continued strength of Scotland, which would be on of its biggest, if not the biggest, trading partner. But it's nigh-on impossible to imagine a rUK government letting the Bank of England incorporate that rationalisation into its mandate.

Compared to questions of fair allocation of public debt, North Sea Oil and monarchs (Scotland can have em, frankly), the question of Scottish monetary policy might seem boringly technical. But it's one of the most intractable problems standing in the way of Alex Salmond's dream.

Floating away. Photograph: Wikimedia Commons

Alex Hern is a technology reporter for the Guardian. He was formerly staff writer at the New Statesman. You should follow Alex on Twitter.

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In the race to be France's next president, keep an eye on Arnaud Montebourg

Today's Morning Call. 

Good morning. As far as the Brexit talks are concerned, the least important voters are here in Britain. Whether UK plc gets a decent Brexit deal depends a lot more on who occupies the big jobs across Europe, and how stable they feel in doing so.

The far-right Freedom Party in Austria may have been repudiated at the presidential level but they still retain an interest in the legislative elections (due to be held by 2018). Both Lega Nord and Five Star in Italy will hope to emerge as the governing party at the next Italian election.

Some Conservative MPs are hoping for a clean sweep for the Eurosceptic right, the better to bring the whole EU down, while others believe that the more vulnerable the EU is, the better a deal Britain will get. The reality is that a European Union fearing it is in an advanced state of decay will be less inclined, not more, to give Britain a good deal. The stronger the EU is, the better for Brexit Britain, because the less attractive the exit door looks, the less of an incentive to make an example of the UK among the EU27.

That’s one of the many forces at work in next year’s French presidential election, which yesterday saw the entry of Manuel Valls, the French Prime Minister, into the race to be the Socialist Party’s candidate.

Though his star has fallen somewhat among the general public from the days when his opposition to halal supermarkets as mayor of Evry, and his anti-Roma statements as interior minister made him one of the most popular politicians in France, a Valls candidacy, while unlikely to translate to a finish in the top two for the Socialists could peel votes away from Marine Le Pen, potentially allowing Emanuel Macron to sneak into second place.

But it’s an open question whether he will get that far. The name to remember is Arnaud Montebourg, the former minister who quit Francois Hollande’s government over its right turn in 2014. Although as  Anne-Sylvaine Chassany reports, analysts believe the Socialist party rank-and-file has moved right since Valls finished fifth out of sixth in the last primary, Montebourg’s appeal to the party’s left flank gives him a strong chance.

Does that mean it’s time to pop the champagne on the French right? Monteburg may be able to take some votes from the leftist independent, Jean-Luc Mélenchon, and might do some indirect damage to the French Thatcherite Francois Fillon. His supporters will hope that his leftist economics will peel away supporters of Le Pen, too.

One thing is certain, however: while the chances of a final run-off between Le Pen and Fillon are still high,  Hollande’s resignation means that it is no longer certain that the centre and the left will not make it to that final round.

THE SOUND OF SILENCE

The government began its case at the Supreme Court yesterday, telling justices that the creation of the European Communities Act, which incorporates the European treaties into British law automatically, was designed not to create rights but to expedite the implementation of treaties, created through prerogative power. The government is arguing that Parliament, through silence, has accepted that all areas not defined as within its scope as prerogative powers. David Allen Green gives his verdict over at the FT.

MO’MENTUM, MO’PROBLEMS

The continuing acrimony in Momentum has once again burst out into the open after a fractious meeting to set the organisation’s rules and procedures, Jim Waterson reports over at BuzzFeed.  Jon Lansman, the organisation’s founder, still owns the data and has the ability to shut down the entire group, should he chose to do so, something he is being urged to do by allies. I explain the origins of the crisis here.

STOP ME IF YOU’VE HEARD THIS ONE  BEFORE

Italy’s oldest bank, Monte Paschi, may need a state bailout after its recapitalisation plan was thrown into doubt following Matteo Renzi’s resignation. Italy’s nervous bankers will wait to see if  €1bn of funds from a Qatari investment grouping will be forthcoming now that Renzi has left the scene.

BOOM BOOM

Strong growth in the services sector puts Britain on course to be the highest growing economy in the G7. But Mark Carney has warned that the “lost decade” of wage growth and the unease from the losers from globalisation must be tackled to head off the growing tide of “isolation and detachment”.

THE REPLACEMENTS

David Lidington will stand in for Theresa May, who is abroad, this week at Prime Ministers’ Questions. Emily Thornberry will stand in for Jeremy Corbyn.

QUIT PICKING ON ME!

Boris Johnson has asked Theresa May to get her speechwriters and other ministers to stop making jokes at his expense, Sam Coates reports in the Times. The gags are hurting Britain’s diplomatic standing, the Foreign Secretary argues.

AND NOW FOR SOMETHING COMPLETELY DIFFERENT

It’s beginning to feel a bit like Christmas! And to help you on your way, here’s Anna’s top 10 recommendations for Christmassy soundtracks.

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Stephen Bush is special correspondent at the New Statesman. His daily briefing, Morning Call, provides a quick and essential guide to British politics.