What does a latte tell us about currencies? Very little, actually

Purchasing power parity is not the same as the Big Mac Index.

The Wall Street Journal sees what the Economist is having, and it likes it. The latter's Big Mac Index is famous for demonstrating the variation in prices for the same good around the world. Despite Big Macs being basically identical no matter where you are, the dollar price varies wildly, from $6.81 in Switzerland down to just $1.82 in India. It's so influential that it's widely thought that Argentina is exerting pressure on its branches of McDonalds to keep the price down so as to not provide evidence of the nation's tinkering with reported inflation.

So now the WSJ wants a piece of the action, and has created its Starbucks Latte Index. I mean, it doesn't call it that, but that's what they're thinking:

Click to embiggen.

But like the Economist, the WSJ draws the wrong inferences from the variation. They both have a habit of using the data to illustrate purchasing power parity, the idea that some currencies are under- or over-valued because a comparable basket of goods varies in price. So the WSJ's Ira Iosebashvili writes:

One way to determine how currencies stack up is purchasing-power parity, or PPP, which compares the amount of currency needed to buy the same item in different countries. A grande latte at Starbucks, for example, costs $4.30 in New York, but the equivalent of $9.83 using Norwegian krone in Oslo, and just $3.92 in Turkish lira in Istanbul.

Starbucks Lattes and Big Macs both have another unique feature, though, which renders them less useful for comparing the strength of a currency overall: they are both made up of highly fungible goods, produced in two of the most integrated supply chains in the world. McDonalds, for instance, doesn't need to buy artisanal wheat from an individual farm; it can just trade in "wheat" as a mass-produced, internationally-traded com oddity. The company has even invented a product to sell to take advantage of variations in the cost of pork, the McRib.

In fact, for Starbucks, that's even more true than it is for MacDonalds. While Maccy D's has made a big deal out of its promise to only use British beef in its British burgers, most of the countries Starbucks operates in in don't grow their own coffee. That has to be imported from South America or North Africa, and so a Starbucks in London will almost certainly be paying the same for its coffee as a branch in Oslo, despite the difference in retail price being over $6.

What the Starbucks and Big Mac indices actually show is the price of unskilled labour and retail space. Those are the parts of the companies' businesses which, no matter how hard they try, they can't erase national differences from. Operating in Oslo, land of high taxes, is always going to be expensive, no matter how strong or weak the krone is.

The Starbucks index even makes this clear, thanks to the fact that the WSJ has included three American cities. A latte in New York City costs more than one in Detroit, a difference that self-evidently can't be due to the currency variation.

But the really important news is that London is actually one of the cheapest cities in the world for a Starbucks latte. Still overpriced for what it is, though.

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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The NS leader: Cold Britannia

Twenty years after the election of New Labour, for the left, it seems, things can only get worse. 

Twenty years after the election of New Labour, for the left, it seems, things can only get worse. The polls suggest a series of grim election defeats across Britain: Labour is 10 points behind the Conservatives even in Wales, putting Theresa May’s party on course to win a majority of seats there for the first time in a century. Meanwhile, in Scotland, the psephologist John Curtice expects the resurgent Tories, under the “centrist” leadership of Ruth Davidson, to gain seats while Labour struggles to cling on to its single MP.

Where did it all go wrong? In this week’s cover essay, beginning on page 26, John Harris traces the roots of Labour’s present troubles back to the scene of one of its greatest triumphs, on 1 May 1997, when it returned 418 MPs to the Commons and ended 18 years of Conservative rule. “Most pop-culture waves turn out to have been the advance party for a new mutation of capitalism, and so it proved with this one,” Mr Harris, one of the contributors to our New Times series, writes. “If Cool Britannia boiled down to anything, it was the birth of a London that by the early Noughties was becoming stupidly expensive and far too full of itself.”

Jump forward two decades and London is indeed now far too dominant in the British economy, sucking in a disproportionate number of graduates and immigrants and then expecting them to pay £4 for a milky coffee and £636,777 for an average house. Tackling the resentment caused by London’s dominance must be an urgent project for the Labour Party. It is one that Mr Corbyn and his key allies, John McDonnell, Emily Thornberry and Diane Abbott, are not well placed to do (all four are ultra-liberals who represent
London constituencies).

Labour must also find a happy relationship with patriotism, which lies beneath many of the other gripes made against Mr Corbyn: his discomfort with the institutions of the British state, his peacenik tendencies, his dislike of Nato and military alliances, his natural inclination towards transnational or foreign liberation movements, rather than seeking to evolve a popular national politics.

New Labour certainly knew how to wave the flag, even if the results made many on the left uncomfortable: on page 33, we republish our Leader from 2 May 1997, which complained about the “bulldog imagery” of Labour’s election campaign. Yet those heady weeks that followed Labour’s landslide victory were a time of optimism and renewal, when it was possible for people on the left to feel proud of their country and to celebrate its achievements, rather than just apologise for its mistakes. Today, Labour has become too reliant on misty invocations of the NHS to demonstrate that it likes or even understands the country it seeks to govern. A new patriotism, distinct from nationalism, is vital to any Labour revival.

That Tony Blair and his government have many detractors hardly needs to be said. The mistakes were grave: the catastrophic invasion of Iraq, a lax attitude to regulating the financial sector, a too-eager embrace of free-market globalisation, and the failure to impose transitional controls on immigration when eastern European states joined the EU. All contributed to the anger and disillusionment that led to the election as Labour leader of first the hapless Ed Miliband and then Jeremy Corbyn, a long-time rebel backbencher.

However, 20 years after the victory of the New Labour government, we should also acknowledge its successes, not least the minimum wage, education reform, Sure Start, a huge fall in pensioner poverty and investment in public services. Things did get better. They can do so again.

The far right halted

For once, the polls were correct. On 23 April, the centrist Emmanuel Macron triumphed in the first round of the French election with 24 per cent of the vote. The Front National’s Marine Le Pen came second with 21.3 per cent in an election in which the two main parties were routed. The two candidates will now face off on 7 May, and with the mainstream candidates of both left and right falling in behind Mr Macron, he will surely be France’s next president.

“There’s a clear distinction to be made between a political adversary and an enemy of the republic,” said Benoît Hamon, the candidate of the governing Parti Socialiste, who had strongly criticised Mr Macron during the campaign. “This is deadly serious now.” He is correct. Mr Macron may be a centrist rather than of the left but he is a democratic politician. Ms Le Pen is a borderline fascist and a victory for her would herald a dark future not just for France but for all of Europe. It is to Donald Trump’s deep shame that he appeared to endorse her on the eve of the vote.

This article first appeared in the 27 April 2017 issue of the New Statesman, Cool Britannia 20 Years On

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