Why the US bond market matters

Felix Martin's "Real Money" column.

On 22 May, Ben Bernanke, the chairman of the board of governors of the US Federal Reserve, made what must have seemed to innocent observers an innocuous remark: he suggested that the era of nearzero interest rates in the US could not last for too much longer and that the Fed might begin to wind down its policy of quantitative easing (QE) later this year.

The reaction of the world’s financial markets was swift and dramatic. First, the interest rate on US government bonds jumped. Then the world’s currency markets went haywire. The US stock market battled on for a few more weeks before it, too, took fright and embarked on a precipitous descent.

People who are not finance professionals might be forgiven for asking what all the fuss is about. Why, after all, should these inconsequential remarks matter so much – and so what if the interest rate on US government bonds rises by a mere 1 per cent? Is any of this relevant to normal people who don’t spend their time buried in the back pages of the Financial Times? The answer, unfortunately, is yes.

The government bond market is the axis on which the financial system of every modern, capitalist economy turns. The interest rate at which the government can borrow is the most important price in the economy – the one on the basis of which the price of every other financial asset and, indirectly, all other prices and wages are set.

Companies and individuals pay interest rates on their borrowing at rates set as a markup over the government’s rate. So if the UK government can borrow for a term of ten years at 2 per cent, then a financially robust and well-established company might be able to borrow at 3.5 per cent; and a flightier, less well-capitalised, more speculative one might be able to borrow at, say, 7 per cent. You or I, meanwhile, might be able to borrow at an even higher rate than that. When the interest rate the government pays moves, so do all the others. Thus, the interest rate on government bonds affects the entire economy.

In this matter, as in so many others, the US is more important than every other country. It is not just that the interest rate on US government bonds is the reference point for the largest economy in the world. The US dollar is also the world’s de facto reserve currency – it’s the only currency that almost anyone anywhere is ready to accept and so everybody wants to keep a precautionary store of it.

As a result, US interest rates filter through to the entire international economy as well. The US dollar is the primary currency of international finance – so that when the interest rate on US government bonds goes up, it becomes more costly not only for the US treasury to borrow at home but also for any government, company or individual almost anywhere in the world to borrow from abroad. Nor is that the end of the story. The differential between the interest rates on government bonds in different countries is a key determinant of exchange rates.

All other things being equal, if the interest rate on the US government’s bonds rises when the interest rate on the British government’s bonds remains unchanged, investors will try to rebalance their investments towards US bonds and away from British ones. As they do so, they will drive down the value of the pound sterling relative to the US dollar.

Even small changes in the interest rate on US government bonds can have a big effect on the relative value of currencies in this way – especially in the emerging markets. In the few weeks since Bernanke made his remarks, the currencies of Mexico, South Africa and Brazil, for example, have all lost more than a tenth of their value against the US dollar. This is extreme volatility of exchange rates and it can be highly disruptive of international trade and finance.

In short, the interest rate on American government bonds is the single most important regulating factor in the world economy. It’s no wonder that James Carville, Bill Clinton’s electoral strategist, reflected ruefully in 1993, “I used to think if there was reincarnation, I wanted to come back as the president or the pope . . . but now I want to come back as the bond market. You can intimidate everybody.”

So is it a good or a bad thing that US interest rates are on the rise following Bernanke’s recent pronouncements? It used to be easy to answer to that question. The link between the central bank policy or base rate and government bond yields was simple. When the economy was in rude health, the central bank would hike its policy rate and the interest rate on government bonds would rise; and when the economy was running out of steam, it would cut and bond yields would fall. Higher rates meant a healthier economy.

Since 2009, however, this transparent link between the bond market and the central bank has evaporated. With central bank policy rates stuck at zero, the bond market has had to take its cue not from monetary policy itself but from officials’ speeches and journalists’ scoops. The utterances of central bank officials such as Bernanke have become major economic data in their own right. The medium has become the message.

The result has been to turn investing in government bond markets into a kind of monetary Kremlinology, in which every passing comment of central bankers is minutely parsed for clues to the true direction of policy. In June, the new Kremlinologists concluded from Bernanke’s latest oracle that the global economy was in robust enough shape to tolerate a rise in the all-important interest rate on US government bonds.

For all our sakes, we had better hope that the divinations of the new Kremlinologists turn out to be more accurate than those of the old ones.

Traders work on the floor of the New York Stock Exchange. Photograph: Getty Images

Macroeconomist, bond trader and author of Money

This article first appeared in the 01 July 2013 issue of the New Statesman, Brazil erupts

Photo: Getty
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The rise of the green mayor – Sadiq Khan and the politics of clean energy

At an event at Tate Modern, Sadiq Khan pledged to clean up London's act.

On Thursday night, deep in the bowls of Tate Modern’s turbine hall, London Mayor Sadiq Khan renewed his promise to make the capital a world leader in clean energy and air. Yet his focus was as much on people as power plants – in particular, the need for local authorities to lead where central governments will not.

Khan was there to introduce the screening of a new documentary, From the Ashes, about the demise of the American coal industry. As he noted, Britain continues to battle against the legacy of fossil fuels: “In London today we burn very little coal but we are facing new air pollution challenges brought about for different reasons." 

At a time when the world's leaders are struggling to keep international agreements on climate change afloat, what can mayors do? Khan has pledged to buy only hybrid and zero-emissions buses from next year, and is working towards London becoming a zero carbon city.

Khan has, of course, also gained heroic status for being a bête noire of climate-change-denier-in-chief Donald Trump. On the US president's withdrawal from the Paris Agreement, Khan quipped: “If only he had withdrawn from Twitter.” He had more favourable things to say about the former mayor of New York and climate change activist Michael Bloomberg, who Khan said hailed from “the second greatest city in the world.”

Yet behind his humour was a serious point. Local authorities are having to pick up where both countries' central governments are leaving a void – in improving our air and supporting renewable technology and jobs. Most concerning of all, perhaps, is the way that interest groups representing business are slashing away at the regulations which protect public health, and claiming it as a virtue.

In the UK, documents leaked to Greenpeace’s energy desk show that a government-backed initiative considered proposals for reducing EU rules on fire-safety on the very day of the Grenfell Tower fire. The director of this Red Tape Initiative, Nick Tyrone, told the Guardian that these proposals were rejected. Yet government attempts to water down other EU regulations, such as the energy efficiency directive, still stand.

In America, this blame-game is even more highly charged. Republicans have sworn to replace what they describe as Obama’s “war on coal” with a war on regulation. “I am taking historic steps to lift the restrictions on American energy, to reverse government intrusion, and to cancel job-killing regulations,” Trump announced in March. While he has vowed “to promote clean air and clear water,” he has almost simultaneously signed an order to unravel the Clean Water Rule.

This rhetoric is hurting the very people it claims to protect: miners. From the Ashes shows the many ways that the industry harms wider public health, from water contamination, to air pollution. It also makes a strong case that the American coal industry is in terminal decline, regardless of possibile interventions from government or carbon capture.

Charities like Bloomberg can only do so much to pick up the pieces. The foundation, which helped fund the film, now not only helps support job training programs in coal communities after the Trump administration pulled their funding, but in recent weeks it also promised $15m to UN efforts to tackle climate change – again to help cover Trump's withdrawal from Paris Agreement. “I'm a bit worried about how many cards we're going to have to keep adding to the end of the film”, joked Antha Williams, a Bloomberg representative at the screening, with gallows humour.

Hope also lies with local governments and mayors. The publication of the mayor’s own environment strategy is coming “soon”. Speaking in panel discussion after the film, his deputy mayor for environment and energy, Shirley Rodrigues, described the move to a cleaner future as "an inevitable transition".

Confronting the troubled legacies of our fossil fuel past will not be easy. "We have our own experiences here of our coal mining communities being devastated by the closure of their mines," said Khan. But clean air begins with clean politics; maintaining old ways at the price of health is not one any government must pay. 

'From The Ashes' will premiere on National Geograhpic in the United Kingdom at 9pm on Tuesday, June 27th.

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

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