Low growth leads to high debt, not the other way round

Charts of the day.

Two big holes have been left by the revelation of serious flaws in the Reinhart-Rogoff paper on austerity. The first is that the concept of a criticality at high levels of debt has been demolished. The original paper showed a massive drop in growth rates for countries with debt to GDP ratios over 90 per cent; that simply does not hold anymore. Insofar as the paper shows any negative association, it is linear – the step from 60 to 70 per cent is no more dangerous than the step from 85 to 95 per cent.

But there's also now an absence of notable economists claiming that high debt ratios cause low growth. In Reinhart and Rogoff's initial response to Herndon, Ash, and Pollin's paper, the authors point out that "we are very careful in all our papers to speak of 'association' and not 'causality'". That's true, but they have also not been shy about endorsing suggestions that there is an element of causality involved – and their paper has been widely misinterpreted as showing as such.

However, Arindrajit Dube presents pretty compelling evidence that the causality lies in the direction everyone but the austerians expected it to: slow growth causes high debt to GDP ratios, not the other way round. It's as simple as two charts:

 

The first image shows the correlation between the debt to GDP ratio in any given year, and the growth in the three years after it. Really low debt comes before high growth rates – but for nearly every other level of debt, the average growth in the next three years is 3 per cent.

Looking backwards, though presents a very different picture. There's strong linear relationship between low growth in the past and high debt-to-GDP ratios now.

And that's not surprising! As Dube writes:

One reason is just algebraic. The ratio has a numerator (debt) and denominator (GDP): any fall in GDP will mechanically boost the ratio. Even if GDP growth doesn’t become negative, continuous growth in debt coupled with a GDP growth slowdown will also lead to a rise in the debt-to-GDP ratio.

Besides, there is also a less mechanical story. A recession leads to increased spending through automatic stabilizers such as unemployment insurance. And governments usually finance these using greater borrowing, as undergraduate macro-economics textbooks tell us governments should do. This is what happened in the U.S. during the past recession.

The easiest way to cut the debt – in the only measure which matters, which is it in relation to the size of the economy – is to increase growth, at least back to the long-term trend. Going at it from the opposite direction, and cutting the debt in the hope it will bring growth back, is a recipe for disaster.

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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Where Labour has no chance, hold your nose and vote Lib Dem

May's gamble, MacKenzie's obsession and Wisden obituaries - Peter Wilby's First Thoughts.

In 2007 Gordon Brown allowed rumours to circulate that he would call an early general election for the spring of 2008. When he failed to do so, he was considered a coward and a ditherer and never recovered. Theresa May has tried a different strategy. After firmly denying that she would call an early election and killing off speculation about one, she suddenly announced an election after all. Will this work better for her than the opposite worked for Brown?

The Prime Minister risks being seen as a liar and an opportunist. Her demand for “unity” at Westminster is alarming, because it suggests that there is no role for opposition parties on the most important issue of the day. If Labour and the Lib Dems are smart enough to co-operate sufficiently to rally the country against what looks like an attempt to instal an authoritarian, right-wing Tory regime, May, even if she wins the election, could find herself weakened, not strengthened. I never thought I would write this but, in constituencies where Labour has no chance, its supporters should hold their noses and vote Lib Dem.

Taken for granted

I wonder if May, before she took her decision, looked at the precedents of prime ministers who called unnecessary elections when they already had comfortable parliamentary majorities. In 1974, after three and a half years in office, Edward Heath, with a Tory majority of 30, called a “Who runs Britain?” election during a prolonged dispute with the miners. He lost. In 1923, Stanley Baldwin, a new Tory leader sitting on a majority of 75 obtained by his predecessor just a year earlier, called an election because he wished to introduce tariffs, an issue strikingly similar to the one raised by Brexit. He also lost. The lesson, I think (and hope), is that prime ministers take the electorate for granted at their peril.

China’s long game

Commentators compare the crisis ­involving North Korea and the US with the Cuban missile crisis of 1962. It doesn’t feel that way to me. For several days that year, nuclear war seemed, to my 17-year-old mind, all but inevitable. I went to the cinema one afternoon and felt surprise when I emerged three hours later to find the world – or, at least, the city of Leicester – going about its business as normal. Two nuclear powers were in direct confrontation. The US threatened to invade communist Cuba to remove Soviet missiles and blockaded the island to prevent deliveries of more weapons. Soviet ships sailed towards the US navy. It wasn’t easy to imagine a compromise, or who would broker one. Nobody doubted that the two sides’ weapons would work. The Soviet Union had carried out nearly 200 nuclear tests. North Korea has claimed just five.

For all the talk of intercontinental missiles, North Korea at present isn’t a credible threat to anybody except possibly its neighbours, and certainly not to the US or Britain. It is in no sense a geopolitical or economic rival to the US. Donald Trump, who, like everybody else, finds the Middle East infernally complicated, is looking for an easy, short-term victory. The Chinese will probably arrange one for him. With 3,500 years of civilisation behind them, they are accustomed to playing the long game.

Mussel pains

Whenever I read Kelvin MacKenzie’s columns in the Sun, I find him complaining about the size of mussels served by the Loch Fyne chain, a subject on which he happens to be right, though one wonders why he doesn’t just order something else. Otherwise, he writes badly and unfunnily, often aiming abuse at vulnerable people such as benefit claimants. It’s a new departure, however, to insult someone because they were on the receiving end of what MacKenzie calls “a nasty right-hander”, apparently unprovoked, in a Liverpool nightclub. He called the victim, the Everton and England footballer Ross Barkley, who has a Nigerian grandfather, “one of our dimmest footballers” and likened him to “a gorilla at the zoo”.
The paper has suspended MacKenzie, a former Sun editor, and Merseyside Police is investigating him for racism, though he claims he didn’t know of Barkley’s ancestry.

Several commentators express amazement that Sun editors allowed such tripe to be published. It was not, I think, a mistake. Britain has no equivalent of America’s successful alt-right Breitbart website, disruptively flinging insults at all and sundry and testing the boundaries of what it calls “political correctness”, because our alt right is already established in the Sun, Express and Mail. To defend their position, those papers will continue to be as nasty as it takes.

Over and out

Easter is the time to read the cricket annual Wisden and, as usual, I turn first to the obituaries. Unlike newspaper obituaries, they record failures as well as successes – those who managed just a few undistinguished performances in first-class cricket and, most poignantly, some who promised much but died early. We learn of a 22-year-old Indian who, during demonstrations against the alleged molestation of a schoolgirl, was shot dead by police and whose grieving mother (invoking the name of one of India’s greatest batsmen) cried, “Bring my Gavaskar back!” In England, two young men drowned, having played one first-class match each, and a 22-year-old Sussex fast bowler, described as “roguish” and “enormously popular”, fell off a roof while celebrating New Year with friends in Scotland. In South Africa, a young batsman was among five municipal employees killed when their truck crashed; the local mayor fled the funeral as his workmates “chanted menacingly” about unpaid wages.

Among the better-known deaths is that of Martin Crowe, probably New Zealand’s best batsman. In a Test match, he once got out on 299 and reckoned the near-miss contributed to the cancer that killed him at 53. “It tore at me like a vulture pecking dead flesh,” he said. Cricket can do that kind of thing to you. 

Peter Wilby was editor of the Independent on Sunday from 1995 to 1996 and of the New Statesman from 1998 to 2005. He writes the weekly First Thoughts column for the NS.

This article first appeared in the 20 April 2017 issue of the New Statesman, May's gamble

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