Beware those Black Swans

The bestselling economist Nassim Nicholas Taleb argues that we can’t make the world financial system

After completing my book The Black Swan, I spent some time meditating on the fragility of systems with the illusion of stability. This convinced me that the banking system was the mother of all accidents waiting to happen. I explained in the book that the best teachers of wisdom are the eldest, because they may have picked up invisible tricks that are absent from our epistemic routines and which help them survive in a world more complex than the one we think we understand. So being old implies a higher degree of resistance to "Black Swans" (events with the following three attributes: they lie outside the realm of regular expectations; they carry an extreme impact; and human nature makes us concoct explanations for their occurrence after the fact).

Take Mother Nature, which is clearly a complex system, with webs of interdependence, non-linearities and a robust ecology (otherwise it would have blown up a long time ago). It is a very old person with an impeccable memory. Mother Nature does not develop Alz­heimer's - and there is evidence that even humans would not easily lose brain functions with age if they took long walks, avoided sugar, bread, white rice and stock-market investments, and refrained from taking economics classes or reading the New York Times.

Let me summarise my ideas of how Mother Nature deals with the Black Swan. First, she likes redundancies. Look at the human body. We have two eyes, two lungs, two kidneys, even two brains (with the possible exception of company executives) - and each has more capacity than is needed ordinarily. So redundan­cy equals insurance, and the apparent inefficiencies are associated with the costs of maintain­ing these spare parts and the energy needed to keep them around in spite of their idleness.

The exact opposite of redundancy is naive optimisation. The reason I tell people to avoid attending an (orthodox) economics class and argue that economics will fail us is the following: economics is largely based on notions of naive optimisation, mathematised (poorly) by Paul Samuelson - and these mathematics have contributed massively to the construction of an error-prone society. An economist would find it inefficient to carry two lungs and two kidneys - consider the costs involved in transporting these heavy items across the savannah. Such optimisation would, eventually, kill you, after the first accident, the first "outlier". Also, consider that if we gave Mother Nature to economists, it would dispense with individual kidneys - since we do not need them all the time, it would be more "efficient" if we sold ours and used a central kidney on a time-share basis. You could also lend your eyes at night, since you do not need them to dream.

Almost every major idea in conventional economics fails under the modification of some assumption, or what is called "perturbation", where you change one parameter or take a parameter henceforth assumed to be fixed and stable by the theory, and make it random. Take the notion of comparative advantage, supposedly discovered by David Ricardo, and which has oiled the wheels of globalisation. The idea is that countries should focus on "what they do best". So one country should specialise in wine, another in clothes, even though one of them might be better at both. But consider what would happen to the country if the price of wine fluctuated. A simple perturbation around this assumption leads one to reach the opposite conclusion to Ricardo. Mother Nature does not like overspecialisation, as it limits evolution and weakens the animals.

This explains why I found the current ideas on globalisation (such as those promoted by the journalist Thomas Friedman) too naive, and too dangerous for society - unless one takes into account the side effects. Globalisation might give the appearance of efficiency, but the operating leverage and the degrees of interaction between parts will cause small cracks in one spot to percolate through the entire system.

The debt taboo

The same idea applies to debt: it makes you very fragile under perturbations. We currently learn in business schools to engage in borrowing, against all historical traditions (all Mediterranean cultures developed over time a dogma against debt). "Felix qui nihil debet", goes the Roman proverb: "Happy is he who owes nothing." Grandmothers who survived the Great Depression would have advised doing the exact opposite of getting into debt: have several years of income in cash before any personal risk-taking. Had the banks done the same, and kept high cash reserves while taking more aggressive risks with a smaller portion of their port­folios, there would have been no crisis.

Documents dating back to the Babylonians show the ills of debt, and Near Eastern religions banned it. This tells me that one of the purposes of religious traditions has been to enforce prohibitions to protect people against their own epistemic arrogance. Why? Debt implies a strong statement about the future, and a high degree of reliance on forecasts. If you borrow $100 and invest in a project, you still owe $100 even if you fail in the project (but you do a lot better in case you succeed). So debt is dangerous if you are overconfident about the future and are Black Swan-blind - which we all tend to be. And forecasting is harmful since people (especially governments) borrow in response to a forecast (or use the forecast as a cognitive excuse to borrow). My "Scandal of Prediction" (bogus predictions that seem to be there to satisfy psychological needs) is compounded by the "Scandal of Debt": borrowing makes you more vulnerable to forecast error.

Just as Mother Nature likes redundancies, so she abhors anything that is too big. The largest land animal is the elephant, and there is a reason for that. If I went on a rampage and shot an elephant, I might be put in jail and get yelled at by my mother, but I would hardly disturb the ecology of Mother Nature. On the other hand, my point about banks in my book - that if you shot a large bank, I would "shiver at the consequences" and that "if one falls, they all fall" - was subsequently illustrated by events: one bank failure, Lehman Brothers, in September 2008, brought down the entire edifice.

The crisis of 2008 provides an illustration of the need for robustness. Over the past 2,500 years of recorded ideas, only fools and Platonists have believed in engineered utopias. We shouldn't think that we can correct mistakes and eliminate randomness from social and economic life. The challenge, rather, is to ensure that human mistakes and miscalculations remain confined, and to avoid them spreading through the system - just the way Mother Nature does it. Reducing randomness increases exposure to Black Swans.

My dream is to have a true "epistemocracy"; that is, a society robust against expert errors, forecasting errors and hubris, one that can be resistant to the incompetence of politicians, regulators, economists, central bankers, bank­ers, policy wonks and epidemiologists.Here are ten principles for a Black Swan-robust society.

What is fragile should break early while it's still small: Nothing should ever become too big to fail. Evolution in economic life helps those with the maximum amount of hidden risks become the biggest.

No socialisation of losses and privatisation of gains: Whatever may need to be bailed out should be nationalised; whatever does not need a bailout should be free, small and risk-bearing. We got ourselves into the worst of capitalism and socialism. In France, in the 1980s, the Socialists took over the banks. In the US in the 2000s, the banks took over the government. This is surreal.

People who drove a school bus blindfolded (and crashed it) should never be given a new bus: The economics establishment lost its legitimacy with the failure of the system in 2008. Find the smart people whose hands are clean to get us out of this mess.

Don't let someone making an "incentive" bonus manage a nuclear plant - or your financial risks: Odds are he would cut every corner on safety to show "profits" from these savings while claiming to be "conservative". Bonuses don't accommodate the hidden risks of blow-ups. It is the asymmetry of the bonus system that got us here. No incentives without disincentives.

Time to definancialise

Compensate complexity with simplicity: Complexity from globalisation and highly networked economic life needs to be countered by simplicity in financial products. Complex systems survive thanks to slack and redundancy, not debt and optimisation.

Do not give children sticks of dynamite, even if they come with a warning label: Complex financial products need to be banned because nobody understands them, and few are rational enough to know it. We need to protect citizens from themselves, from bankers selling them "hedging" products, and from gullible regulators who listen to economic theorists.

Only Ponzi schemes should depend on confidence: Governments should never need to "restore confidence". Cascading rumours are a product of complex systems. Governments cannot stop the rumours. We just need to be able to shrug off rumours, to be robust to them. Do not give an addict more drugs if he has withdrawal pains: Using leverage to cure the problems of too much leverage is not homoeopathy, it's denial. The debt crisis is not a temporary problem, it's a structural one. We need rehab.

Citizens should not depend on financial assets as a repository of value and rely on fallible "expert" advice for their retirement: Economic life should be definancialised. We should learn not to use markets as warehouses of value.

Make an omelette with the broken eggs: The crisis of 2008 was not a problem to fix with makeshift repairs. We will have to remake the system before it does so itself. Let us move voluntarily into a robust economy by helping what needs to be broken break on its own, converting debt into equity, marginalising the economics and business school establishments, banning leveraged buyouts, putting bankers where they belong, clawing back the bonuses of those who got us here and teaching people to navigate a world with fewer certainties. Then we will see an economic life closer to our biological environment: smaller firms and no leverage - a world in which entrepreneurs, not bankers, take the risks, and in which companies are born and die every day without making the news.

Extracted from the postscript to "The Black Swan: the Impact of the Highly Improbable" by Nassim Nicholas Taleb (Penguin, £9.99)
© Nassim Nicholas Taleb 2008 penguin.co.uk

This article first appeared in the 05 July 2010 issue of the New Statesman, The cult of the generals

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Why Jeremy Corbyn is a new leader for the New Times

In an inspired election campaign, he confounded his detractors and showed that he was – more than any other leader – in tune with the times.

There have been two great political turning points in postwar Britain. The first was in 1945 with the election of the Attlee government. Driven by a popular wave of determination that peacetime Britain would look very different from the mass unemployment of the 1930s, and built on the foundations of the solidaristic spirit of the war, the Labour government ushered in full employment, the welfare state (including the NHS) and nationalisation of the basic industries, notably coal and the railways. It was a reforming government the like of which Britain had not previously experienced in the first half of the 20th century. The popular support enjoyed by the reforms was such that the ensuing social-democratic consensus was to last until the end of the 1970s, with Tory as well as Labour governments broadly operating within its framework.

During the 1970s, however, opposition to the social-democratic consensus grew steadily, led by the rise of the radical right, which culminated in 1979 in the election of Margaret Thatcher’s first government. In the process, the Thatcherites redefined the political debate, broadening it beyond the rather institutionalised and truncated forms that it had previously taken: they conducted a highly populist campaign that was for individualism and against collectivism; for the market and against the state; for liberty and against trade unionism; for law and order and against crime.

These ideas were dismissed by the left as just an extreme version of the same old Toryism, entirely failing to recognise their novelty and therefore the kind of threat they posed. The 1979 election, followed by Ronald Reagan’s US victory in 1980, began the neoliberal era, which remained hegemonic in Britain, and more widely in the West, for three decades. Tory and Labour governments alike operated within the terms and by the logic of neoliberalism. The only thing new about New Labour was its acquiescence in neoliberalism; even in this sense, it was not new but derivative of Thatcherism.

The financial crisis of 2007-2008 marked the beginning of the end of neoliberalism. Unlike the social-democratic consensus, which was undermined by the ideological challenge posed by Thatcherism, neoliberalism was brought to its knees not by any ideological alternative – such was the hegemonic sway of neoliberalism – but by the biggest financial crisis since 1931. This was the consequence of the fragility of a financial sector left to its own devices as a result of sweeping deregulation, and the corrupt and extreme practices that this encouraged.

The origin of the crisis lay not in the Labour government – complicit though it was in the neoliberal indulgence of the financial sector – but in the deregulation of the banking sector on both sides of the Atlantic in the 1980s. Neoliberalism limped on in the period after 2007-2008 but as real wages stagnated, recovery proved a mirage, and, with the behaviour of the bankers exposed, a deep disillusionment spread across society. During 2015-16, a populist wave of opposition to the establishment engulfed much of Europe and the United States.

Except at the extremes – Greece perhaps being the most notable example – the left was not a beneficiary: on the contrary it, too, was punished by the people in the same manner as the parties of the mainstream right were. The reason was straightforward enough. The left was tarnished with the same brush as the right: almost everywhere social-democratic parties, albeit to varying degrees, had pursued neoliberal policies. Bill Clinton and Tony Blair became – and presented themselves as – leaders of neoliberalism and as enthusiastic advocates of a strategy of hyper-globalisation, which resulted in growing inequality. In this fundamental respect these parties were more or less ­indistinguishable from the right.

***

The first signs of open revolt against New Labour – the representatives and evangelists of neoliberal ideas in the Labour Party – came in the aftermath of the 2015 ­election and the entirely unpredicted and overwhelming victory of Jeremy Corbyn in the leadership election. Something was happening. Yet much of the left, along with the media, summarily dismissed it as a revival of far-left entryism; that these were for the most part no more than a bunch of Trots. There is a powerful, often overwhelming, tendency to see new phenomena in terms of the past. The new and unfamiliar is much more difficult to understand than the old and familiar: it requires serious intellectual effort and an open and inquiring mind. The left is not alone in this syndrome. The right condemned the 2017 Labour Party manifesto as a replica of Labour’s 1983 manifesto. They couldn’t have been more wrong.

That Corbyn had been a veteran of the far left for so long lent credence to the idea that he was merely a retread of a failed past: there was nothing new about him. In a brilliant election campaign, Corbyn not only gave the lie to this but also demonstrated that he, far more than any of the other party leaders, was in tune with the times, the candidate of modernity.

Crises, great turning points, new conjunctures, new forms of consciousness are by definition incubators of the new. That is one of the great sources of their fascination. We can now see the line of linkage between the thousands of young people who gave Corbyn his overwhelming victory in the leadership election in 2015 and the millions of young people who were enthused by his general election campaign in 2017. It is no accident that it was the young rather than the middle-aged or the seniors who were in the vanguard: the young are the bearers and products of the new, they are the lightning conductors of change. Their elders, by contrast, are steeped in old ways of thinking and doing, having lived through and internalised the values and norms of neoliberalism for more than 30 years.

Yet there is another, rather more important aspect to how we identify the new, namely the way we see politics and how politics is conceived. Electoral politics is a highly institutionalised and tribal activity. There have been, as I argued earlier, two great turning points in postwar politics: the social-democratic era ushered in by the 1945 Labour government and the neoliberal era launched by the Tory government in 1979.

The average Tory MP or activist, no doubt, would interpret history primarily in terms of Tory and Labour governments; Labour MPs and activists would do similarly. But this is a superficial reading of politics based on party labels which ignores the deeper forces that shape different eras, generate crises and result in new paradigms.

Alas, most political journalists and columnists are afflicted with the same inability to distinguish the wood (an understanding of the deeper historical forces at work) from the trees (the day-to-day manoeuvring of parties and politicians). In normal times, this may not be so important, because life continues for the most part as before, but at moments of great paradigmatic change it is absolutely critical.

If the political journalists, and indeed the PLP, had understood the deeper forces and profound changes now at work, they would never have failed en masse to rise above the banal and predictable in their assessment of Corbyn. Something deep, indeed, is happening. A historical era – namely, that of neoliberalism – is in its death throes. All the old assumptions can no longer be assumed. We are in new territory: we haven’t been here before. The smart suits long preferred by New Labour wannabes are no longer a symbol of success and ambition but of alienation from, and rejection of, those who have been left behind; who, from being ignored and dismissed, are in the process of moving to the centre of the political stage.

Corbyn, you may recall, was instantly rejected and ridiculed for his sartorial style, and yet we can now see that, with a little smartening, it conveys an authenticity and affinity with the times that made his style of dress more or less immune from criticism during the general election campaign. Yet fashion is only a way to illustrate a much deeper point.

The end of neoliberalism, once so hegemonic, so commanding, is turning Britain on its head. That is why – extraordinary when you think about it – all the attempts by the right to dismiss Corbyn as a far-left extremist failed miserably, even proved counterproductive, because that was not how people saw him, not how they heard him. He was speaking a language and voicing concerns that a broad cross-section of the public could understand and identify with.

***

The reason a large majority of the PLP was opposed to Corbyn, desperate to be rid of him, was because they were still living in the neoliberal era, still slaves to its ideology, still in thrall to its logic. They knew no other way of thinking or political being. They accused Corbyn of being out of time when in fact it was most of the PLP – not to mention the likes of Mandelson and Blair – who were still imprisoned in an earlier historical era. The end of neoliberalism marks the death of New Labour. In contrast, Corbyn is aligned with the world as it is rather than as it was. What a wonderful irony.

Corbyn’s success in the general election requires us to revisit some of the assumptions that have underpinned much political commentary over the past several years. The turmoil in Labour ranks and the ridiculing of Corbyn persuaded many, including on the left, that Labour stood on the edge of the abyss and that the Tories would continue to dominate for long into the future. With Corbyn having seized the political initiative, the Tories are now cast in a new light. With Labour in the process of burying its New Labour legacy and addressing a very new conjuncture, then the end of neoliberalism poses a much more serious challenge to the Tories than it does the Labour Party.

The Cameron/Osborne leadership was still very much of a neoliberal frame of mind, not least in their emphasis on austerity. It would appear that, in the light of the new popular mood, the government will now be forced to abandon austerity. Theresa May, on taking office, talked about a return to One Nation Toryism and the need to help the worst-off, but that has never moved beyond rhetoric: now she is dead in the water.

Meanwhile, the Tories are in fast retreat over Brexit. They held a referendum over the EU for narrowly party reasons which, from a national point of view, was entirely unnecessary. As a result of the Brexit vote, the Cameron leadership was forced to resign and the Brexiteers took de facto command. But now, after the election, the Tories are in headlong retreat from anything like a “hard Brexit”. In short, they have utterly lost control of the political agenda and are being driven by events. Above all, they are frightened of another election from which Corbyn is likely to emerge as leader with a political agenda that will owe nothing to neoliberalism.

Apart from Corbyn’s extraordinary emergence as a leader who understands – and is entirely comfortable with – the imperatives of the new conjuncture and the need for a new political paradigm, the key to Labour’s transformed position in the eyes of the public was its 2017 manifesto, arguably its best and most important since 1945. You may recall that for three decades the dominant themes were marketisation, privatisation, trickle-down economics, the wastefulness and inefficiencies of the state, the incontrovertible case for hyper-globalisation, and bankers and financiers as the New Gods.

Labour’s manifesto offered a very different vision: a fairer society, bearing down on inequality, a more redistributive tax system, the centrality of the social, proper funding of public services, nationalisation of the railways and water industry, and people as the priority rather than business and the City. The title captured the spirit – For the Many Not the Few. Or, to put in another way, After Neoliberalism. The vision is not yet the answer to the latter question, but it represents the beginnings of an answer.

Ever since the late 1970s, Labour has been on the defensive, struggling to deal with a world where the right has been hegemonic. We can now begin to glimpse a different possibility, one in which the left can begin to take ownership – at least in some degree – of a new, post-neoliberal political settlement. But we should not underestimate the enormous problems that lie in wait. The relative economic prospects for the country are far worse than they have been at any time since 1945. As we saw in the Brexit vote, the forces of conservatism, nativism, racism and imperial nostalgia remain hugely powerful. Not only has the country rejected continued membership of the European Union, but, along with the rest of the West, it is far from reconciled with the new world that is in the process of being created before our very eyes, in which the developing world will be paramount and in which China will be the global leader.

Nonetheless, to be able to entertain a sense of optimism about our own country is a novel experience after 30 years of being out in the cold. No wonder so many are feeling energised again.

This article first appeared in the 15 June 2017 issue of the New Statesman, Corbyn: revenge of the rebel

Martin Jacques is the former editor of Marxism Today. 

This article first appeared in the 15 June 2017 issue of the New Statesman, Corbyn: revenge of the rebel

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