Switzerland's getting into a currency war with us? Brilliant!

Spend, spend, spend.

It's sort of like the Baader-Meinhof Phenomenon – you hear a relatively rare phrase once, and then it starts springing up all over the place. Today's is "currency war".

At the Telegraph, Ambrose Evans-Pritchard has uncovered evidence that Switzerland and the UK are "effectively fighting a 'low intensity' currency war against each other". He writes:

It seems you can’t debase your coinage these days even if you try.

The Bank of England is straining every sinew to drive down sterling with quantitative easing, and what happens?

The Swiss National Bank trumps Threadneedle Street with an outright blitz of Gilt purchases. They just print it, and buy.

Switzerland is one of the most forthright currency manipulators out there at the moment, as it struggles to hold its franc above 1.20 to the euro. This chart, from the ECB, shows the effect of that fight:

Although currency speculators have been battering at the floor, the Swiss central bank has held to its promise (but it did drop down to 1.1997 francs for a few minutes back in April last year) by buying a metric shittonne (technical term) of eurobonds. Now that it owns so many of those, it is trying to diversify its holdings into other currencies, "allegedly into Aussies, Loonies (Canada), Scandies, Won?, Real? but above all pounds" according to Evans-Pritchard.

The Swiss are doing it because a weaker currency, particularly relative to the Eurozone, is good for them – it boosts deficits and interest rates, both things which ought to keep them out of recession. But we want the same thing. Hence: currency war.

In the US, meanwhile, some economists have argued that America needs to get tough on currency manipulators. The Washington Post's Dylan Matthews writes:

In a new working paper, Joe Gagnon and Fred Bergsten at the Peterson Institute argue not just for import tariffs like those Schumer advocates, but for a full-frontal assault on countries that are manipulating their currencies… Specifically, they want the U.S. to offer the eight worst currency manipulators — China, Denmark, Hong Kong, Korea, Malaysia, Singapore, Switzerland and Taiwan — an ultimatum: Stop manipulating, or else we’ll do the following:

Buy up exactly as many assets in their currencies as they have in ours… tax the earnings from dollar-denominated assets as punishment… treat currency manipulation the same way we treat export subsidies for the purposes of imposing retaliatory tariffs [or] take the manipulators to the World Trade Organization (WTO).

The first of those options is an archetypal currency war. Gagnon and Bergsten argue that making that threat would "currency manipulation, make the dollar less expensive, and thus promote U.S. exports"; the standard refrain of those entering currency wars.

And Matthews offers the standard objection:

The risk is that Gagnon and Bergsten’s policies would only provoke the targeted countries, leading them to respond with still more manipulation and/or tariffs on U.S. goods, setting off a full-fledged currency and trade war that just leaves all parties worse off.

Except that that's not really true (well, the trade war part is). A full-fledged currency war – whether it's between America and all eight of its named "manipulators" or Britain and the Swiss – is indeed a zero-sum game when it comes to the actual level of the currencies. Both GBP and CHF cannot weaken against each other at the same time, definitionally.

But while the war is pointless, the act of fighting it could be a good thing. The Atlantic's Matthew O'Brien writes:

The downside of devaluation is that no country gains a real trade advantage, and weaker currencies means the prices of commodities like oil shoot. But and here's the really important part devaluing means printing money. There isn't enough money in the world. That's the simple and true reason why the global economy fell into crisis and has been so slow to recover. It's also the simple and true reason why the Great Depression was so devastating. We know from the 1930s that such competitive devaluation can turn things around.

War is good if it creates more of something you want. A "charity war" between friends is good because it leads to more donations. A currency war is good because it leads to more money. If war is politics by other means, a currency war is stimulus by other means.

Think of it by analogy to fiscal stimulus. Sometimes, a government decides to do that directly. But just as frequently – say, during the Second World War – it embarks on a massive deficit-funded spending programme because it feels it has to, and it just so happens to be macroeconomically beneficial as well.

So please, Switzerland, keep buying British bonds. It will force the Bank of England into making the moves it ought to have done a long time ago.

Photograph: Getty Images

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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How Devon's humpback whale is dredging up the politics of the sea

The arrival of a humpback whale at Slapton Sands has caused a local splash. But the history of the village has a warning for those who think of the sea as spectacle alone.

The Devon coast road from Dartmouth to Torcross is as pretty as it is treacherous. After winding through a cliff-top village, the road ahead falls away to reveal a giant lake – the Slapton Ley - flanked by green hills on one side and ocean on the other. 

Tourists (or "grockles") gasp at the view and, in recent weeks, even locals have been staring out to sea - where a giant humpback whale has taken up residence in the bay.

Not seen at Slapton in living memory, the whale has swum into rural stardom. Hundreds have lined the beach with cameras and telescopes. The nearby pub and farm shop have seen levels of trade only usually enjoyed in the summer.

According to Keith Pugh, (the ice-cream-van-man who has been keeping the crowds supplied with tea) one lady from Plymouth caught the bus here every day for six weeks just to catch a single glimpse. That’s a four-hour round trip.

If this all sounds a bit fishy, that's because it is. Experts believe that the whale is feeding on the bumper numbers of small fish and mackerel that have been reported in the area. But even these are behaving in unexpected ways. “The mackerel are further north than usual for this time of year,” says Mark Darlaston, a photographer who first identified the whale as a humpback (and jokingly named it after storm “Doris”).

So what is the humpback up to, so far south of its northern feeding grounds? And should its presence be seen as a sign of recovery - for whales and UK waters in general? 

Not yet, say conservationists. And not if the history of Slapton is anything to go by.

Troubled waters

Villagers at Torcross, at the far end of Slapton sands, are familiar with secrets from the deep. In 1944, a military training in the bay went horribly wrong, when nearly 1,000 American servicemen were drowned. The tragedy was hushed up for decades.

But the greatest threat to the community comes from mismanagement of the sea itself. On 26 January 1917 the entire neighbouring village of Hallsands was swallowed by a storm. The tragedy was partially manmade. The underwater sandbanks, which had helped protect the shore from longshore drift, had been thoughtlessly dredged to supply building materials for the Plymouth docks. Some 660,000 tonnes of material were removed and never replaced.

The results of that plunder are still felt at Slapton today. In 2014, a gale-force storm swept away part of the road that runs between the sea and the ley. Just last year, the seawall at Torcross crumbled, as the protective beach beneath was carried away by waves.

Into the Brexit deeps

So much in our oceans is tightly connected to human activity. If whales are a rare sight on the UK coast, it is partly because of the human campaign against them for many years in the form of whaling. According to Sally Hamilton from the conservation charity Orca, the 1980s moratorium on whaling has helped some populations to recover. 

But others are still fighting to survive in the face of pollution, noise, and over-fishing. The UK’s last resident pod of killer whales looks likely to die out after high levels of PCB chemicals have stopped the females reproducing. In Norway, a stranded whale was found to have over 30 plastic bags blocking its digestive system.

There is also no certainty that the glut of fish that the whale is feeding on will come again next year. “There is still masses we don’t understand about the ocean,” says Will McCallum from Greenpeace, “Climate change and the threat of over-fishing mean that where fish are moving to is more unpredictable that it has ever been.”

And it's not just whales that could get caught out. Some UK politicians have demanded that a Brexit deal include blocking foreign vessels from fishing in British waters. With 58 per cent of UK-caught fish caught by non-British fleets, it is argued that a ban would benefit the UK industry.

Yet with migration patterns becoming more erratic, McCallum is sceptical. "Re-territorialising our waters would be an absolute potential disaster because we just don’t know where fish stocks are going to move," he says. 

Out of the Blues

At Torcross, the sea has long been a source of worry. Claire, the landlady at the Start Bay Inn, recalls the many storms that have pelted the seafront pub since she was a child. Just last year she was “running from one end to the other” trying to sweep the water out, while bottles rattled and the chip-fryer shook.

So it was perhaps unsurprising that news of the whale’s arrival first met with local concern. “I can’t bear to see it,” one woman tells me. She had read in the press that it had come so close in to shore to “beach” itself and die, and heard rumours it was in mourning for a lost calf.

But thanks to the investigations of Mark Darlaston and the divers at the British Divers Marine Life Rescue, such fake whale-news has been corrected - and its visits are fast becoming a source of wider hope. The owner of the Stokely farmshop has joked about replacing it with a decoy “nessie” when it leaves. Claire cannot wait to put its picture on the front of her menus (where the picture is currently of the recent storm).

It is not yet known what lies ahead for Brexit fishing policy, or for whales. But dip into the history of the village of Torcross, and it's clear that understanding and protecting the sea is inseparable from protecting ourselves.

India Bourke is an environment writer and editorial assistant at the New Statesman.