Jul 15th 2015

The Mirage of the Financial Singularity

NEW HAVEN – In their new book The Incredible Shrinking Alpha, Larry E. Swedroe and Andrew L. Berkin describe an investment environment populated by increasingly sophisticated analysts who rely on big data, powerful computers, and scholarly research. With all this competition, “the hurdles to achieving alpha [returns above a risk-adjusted benchmark – and thus a measure of success in picking individual investments] are getting higher and higher.”

That conclusion raises a key question: Will alpha eventually go to zero for every imaginable investment strategy? More fundamentally, is the day approaching when, thanks to so many smart people and smarter computers, financial markets really do become perfect, and we can just sit back, relax, and assume that all assets are priced correctly?

This imagined state of affairs might be called the financial singularity, analogous to the hypothetical future technological singularity, when computers replace human intelligence. The financial singularity implies that all investment decisions would be better left to a computer program, because the experts with their algorithms have figured out what drives market outcomes and reduced it to a seamless system.

Many believe that we are almost there. Even legendary investors like Warren Buffett, it is argued, are not really outperforming the market. In a recent paper, “Buffett’s Alpha,” Andrea Frazzini and David Kabiller of AQR Capital Management and Lasse Pedersen of Copenhagen Business School, conclude that Buffett is not generating significantly positive alpha if one takes account of certain lesser-known risk factors that have weighed heavily in his portfolio. The implication is that Buffet’s genius could be replicated by a computer program that incorporates these factors.

If that were true, investors would abandon, en masse, their efforts to ferret out mispricing in the market, because there wouldn’t be any. Market participants would rationally assume that every stock price is the true expected present value of future cash flows, with the appropriate rate of discount, and that those cash flows reflect fundamentals that everyone understands the same way. Investors’ decisions would diverge only because of differences in their personal situation. For example, an automotive engineer might not buy automotive stocks – and might even short them – as a way to hedge the risk to his or her own particular type of human capital. Indeed, according to a computer crunching big data, this would be an optimal decision.

There is a long-recognized problem with such perfect markets: No one would want to expend any effort to figure out what oscillations in prices mean for the future. Thirty-five years ago, in their classic paper, “On the Impossibility of Informationally Efficient Markets,” Sanford Grossman and Joseph Stiglitz presented this problem as a paradox: Perfectly efficient markets require the effort of smart money to make them so; but if markets were perfect, smart money would give up trying.

The Grossman-Stiglitz conundrum seems less compelling in the financial singularity if we can imagine that computers direct all the investment decisions. Although alpha may be vanishingly small, it still represents enough profit to keep the computers running.

But the real problem with this vision of financial singularity is not the Grossman-Stiglitz conundrum; it is that real-world markets are nowhere close to it. Computer enthusiasts are excited by things like the blockchain used by Bitcoin (covered on an education website called Singularity University, in a section dramatically titled Exponential Finance). But the futurists’ financial world bears no resemblance to today’s financial world. After all, the financial singularity implies that all prices would be based on such things as optimally projected future corporate profits and the correlation of profits with expected technological innovations and long-term demographic changes. But the smart money hardly ever talks in such ethereal terms.

In this context, it is difficult not to think of China’s recent stock-market plunge. News accounts depict hordes of emotional people trading on hunch and superstition. That looks a lot more like reality than all the talk of impending financial singularity.

Markets seem to be driven by stories, as I emphasize in my book Irrational Exuberance. There are stories of great new eras and of looming depressions. There are fundamental stories about technology and declining resources. And there are stories about politics and bizarre conspiracies.

No one knows if these stories are true, but they take on a life of their own. Sometimes they go viral. When one has a heart-to-heart talk with many seemingly rational people, they turn out to have crazy theories. These people influence markets, because all other investors must reckon with them; and their craziness is not going away anytime soon.

Maybe Buffett’s past investing style can be captured in a trading algorithm today. But that does not necessarily detract from his genius. Indeed, the true source of his success may consist in his understanding of when to abandon one method and devise another.

The idea of financial singularity may seem inspiring; but it is no less illusory than the rational Utopia that inspired generations of central planners. Human judgment, good and bad, will drive investment decisions and financial-market outcomes for the rest of our lives and beyond.



Copyright: Project Syndicate, 2015.
www.project-syndicate.org

 


This article is brought to you by Project Syndicate that is a not for profit organization.

Project Syndicate brings original, engaging, and thought-provoking commentaries by esteemed leaders and thinkers from around the world to readers everywhere. By offering incisive perspectives on our changing world from those who are shaping its economics, politics, science, and culture, Project Syndicate has created an unrivalled venue for informed public debate. Please see: www.project-syndicate.org.

Should you want to support Project Syndicate you can do it by using the PayPal icon below. Your donation is paid to Project Syndicate in full after PayPal has deducted its transaction fee. Facts & Arts neither receives information about your donation nor a commission.

 

 

Browse articles by author

More Current Affairs

Jul 29th 2022
EXTRACT: ".... the likelihood is that Biden, who spent his life as a senator, played a central behind-the-scenes role in turning Manchin around and keeping the Democratic Party Senators together on this pared-down version of Build Back Better. Biden’s legislative accomplishments, not to mention his administrative ones, will likely end up being very impressive for the first two years of his presidency. ------ In matters of climate, every ton of CO2 you don’t put into the atmosphere is a decrease in how hard life will be for our grandchildren. They will have reason to be grateful to President Biden and the Democratic Party if this bill becomes law."
Jul 29th 2022
EXTRACTS: "Right-wing media outlets including Fox News, One America News (OAN), Newsmax, and talk radio are grossly abusing the right to free speech and are causing profound, if not irreparable damage to our country at home and abroad. They have been engaged in these deliberate practices of spreading poisonous misinformation all in the name of free speech." ---- "A team at MIT, analyzing propaganda techniques in the news, underscores the use of logical fallacies – such as strawmen (the misrepresentation of the other’s position), red herrings (the provision of irrelevancies), false dichotomies (offering two alternatives as the only possibilities), and whataboutism (a diversionary tactic to avoid directly addressing an issue). ---- Whataboutism is worth considering more closely because it is becoming ubiquitous among Republicans – perhaps this is not surprising given that it is certainly Trump’s “favorite dodge.” It is one of the fundamental rules by which he operates: when you are criticized, say that someone else is worse. In an interview with Trump, Bill O’Reilly states the obvious fact that “Putin is a killer,” and who can forget Trump’s response: “There are a lot of killers. You got a lot of killers. What, you think our country is so innocent?” That is classic whataboutism. And it is also of course all over Fox News’ most popular line-up."
Jul 24th 2022
EXTRACTS: "For three hours, against the unequivocal advice of his counsel, friends, and family, Trump purposefully and steadfastly declined to give the mob he had summoned any signal to disperse, to exit the building peacefully, or to simply cease threatening the life of his vice president or other members of Congress." ------ "Trump is corrupt to the core, a traitor who deserves nothing but contempt and to spend the rest of his life behind bars because he remains a menace to this country and an existential threat to our democratic institutions."
Jul 21st 2022
EXTRACT: "For some countries, diasporas also are not new. Just ask the Russians. For three-quarters of a century, Stalin’s NKVD and its successor, the KGB, kept close tabs on expatriate Russians, constantly worrying about the threat they might pose. And now, Russian President Vladimir Putin’s security service, the FSB, is continuing the tradition. According to recent FSB estimates, almost four million Russians left the country in the first three months of this year. Obviously, FSB statistics are hard to verify. But the sheer magnitude of this year’s departures is striking."
Jul 20th 2022
EXTRACTS: "We need leaders who will be honest about our problems in the short, medium, and long term. We are becoming poorer than our neighbors, with our per capita growth and productivity lagging behind theirs. We confront surging energy prices, soaring inflation, and public-sector strikes. Our fiscal deficit is uncomfortably high. Our influence is diminished. Far from recognizing these challenges, let alone proposing sensible solutions, the candidates to succeed Johnson are trying to win votes with reckless proposals like ever-larger tax cuts." ----- "There is one exception. Former Chancellor of the Exchequer Rishi Sunak refuses to abandon the notion that expenditure should bear some relationship to revenue. "
Jul 13th 2022
EXTRACT: "Looking ahead, five factors could make today’s energy crisis even worse. First, Putin has opened a second front in the conflict by cutting back on the contracted volumes of natural gas that Russia supplies to Europe. The goal is to prevent Europeans from storing enough supplies for next winter, and to drive prices higher, creating economic hardship and political discord. In his speech in June at the St. Petersburg International Economic Forum, Putin made his reasoning clear: “Social and economic problems worsening in Europe” will “split their societies” and “inevitably lead to populism … and a change of the elites in the short term.” ...... As it is, Germany is now anticipating the need for gas rationing, and its minister for economic affairs, Robert Habeck, warns of a “Lehman-style contagion” (referring to the 2008 financial crisis) if Europe cannot manage today’s energy-induced economic disruptions."
Jul 5th 2022
EXTRACT: "Fortunately, I am not alone in claiming that the survival of democracy in the US is gravely endangered. The American public has been aroused by the decision overturning Roe. But people need to recognize that decision for what it is: part of a carefully laid plan to turn the US into a repressive regime. We must do everything we can to prevent that. This fight ought to include many people who voted for Trump in the past."
Jul 2nd 2022
EXTRACT: "The Israeli philosopher Avishai Margalit described this succinctly in his book On Compromise and Rotten Compromises. In “politics as economics,” material interests are “subject to bargaining, everything is negotiable, whereas in the religious picture, centered on the idea of the holy, the holy is non-negotiable.” This, then, is why politics in the US is now in such a perilous state. More and more, the secular left and the religious right are engaged in a culture war, revolving around sexuality, gender, and race, where politics is no longer negotiable. When that happens, institutions start breaking down, and the stage is set for charismatic demagogues and the politics of violence."
Jul 2nd 2022
EXTRACT: "...EU enlargement is essentially a political decision by member states, based on a multitude of considerations that sometimes include dramatic events. Russia’s war of aggression against Ukraine is such a turning point."
Jun 29th 2022
EXTRACT: "Most market analysts seem to think that central banks will remain hawkish, but I am not so sure. I have argued that they will eventually wimp out and accept higher inflation – followed by stagflation – once a hard landing becomes imminent, because they will be worried about the damage of a recession and a debt trap, owing to an excessive build-up of private and public liabilities after years of low interest rates." ----- "There is ample reason to believe that the next recession will be marked by a severe stagflationary debt crisis. As a share of global GDP, private and public debt levels are much higher today than in the past, having risen from 200% in 1999 to 350% today (with a particularly sharp increase since the start of the pandemic). Under these conditions, rapid normalization of monetary policy and rising interest rates will drive highly leveraged zombie households, companies, financial institutions, and governments into bankruptcy and default."
Jun 28th 2022
EXTRACT: "It is tempting to conclude that today’s central bankers are damned if they do and damned if they don’t. Maybe if they sit tight, they will ride out the storm. Then-Fed Chair Paul Volcker was Public Enemy Number One in the United States in the early 1980s, when he squeezed post-oil-shock inflation out of the system with double-digit interest rates. But in his later years he was revered, and became a national treasure, called on to advise successive presidents in any financial emergency. ----- But central bankers would be wise not to assume that their reputations will automatically recover, and that the status quo ante will be restored. We live in a more disputatious age than the 1980s. Public institutions are more regularly challenged and held to account by far less reverential legislators." ----- "Moreover, former central bankers have joined the chorus of critics. Former Fed Chair Ben Bernanke, breaking the unwritten rule not to reproach one’s successors, has said that today’s Fed made “a mistake” by responding slowly to inflation. And Bailey’s immediate predecessors, Mervyn King and Mark Carney, have weighed in, too, with challenges to the BOE’s policy. The fabric of the central banking fraternity is fraying."
Jun 25th 2022
EXTRACT: "Public opinion in Belarus remains firmly against involvement into the war with Ukraine. Moreover, according to a Chatham House survey, 40% of Belarusians do not support Russia’s war, compared to 32% who do, while around half of those questioned see predominately negative consequences of the war for Belarus (53%) and for themselves (48%). The Belarusian military and security services are also aware of the determined and skilful resistance that Ukrainian forces have put up against Russia and the risks that they would therefore be running if they entered the war against Ukraine. This, in turn, means that the risk to Lukashenko himself remains that he might lose his grip on power, a grip which depends heavily on the loyalty of his armed forces." ---- "Ultimately, Belarus may not be on the brink of being plunged into war quite yet, but its options to avoid such a disaster are narrowing."
Jun 20th 2022
EXTRACT: "Russification (the policy of enforcing Russian culture on populations) appears to be being reinforced by ethnic cleansing. Last month the Ukrainian parliament’s commissioner for human rights, Liudmyla Denisova, informed the United Nations’ High Commissioner for Refugees, Filippo Grandi, that 1.3 million Ukrainians, including 223,000 children, had been forcibly deported to Russia."
Jun 11th 2022
EXTRACT: "If Trump had his way, then Vice-President Pence would have also broken his oath to the constitution and derailed the certification of electoral votes. Our continued existence as a Republic might very well have hung on Pence’s actions that day. The mob’s response was to call for Pence to be hanged, and a noose and scaffold was erected apparently for that very purpose. What was Trump’s reaction when he was told that the mob was calling for Pence’s summary execution? His words were: “Maybe our supporters have the right idea.” Mike Pence “deserves” it."
Jun 10th 2022
EXTRACTS: "Speaking to journalist Sophie Raworth on the BBC’s Sunday Morning show recently, former war crimes prosecutor Sir Howard Morrison, now an advisor to the Ukraine government, highlighted the dangers posed by the negative – often insulting and dehumanising – statements made by some Russian politicians and media personalities about Ukraine and its people." ---- "The conditions and attitudes described by Morrison have existed for centuries: Russians have viewed Ukrainians as inferior since before the Soviet era." ----- "And, as Morrison said, stereotyping and denigrating a people as inferior or lacking agency makes atrocities and looting more likely to happen, as we are seeing in Ukraine."
Jun 9th 2022
EXTRACT: "Unless Russia realises that the west is willing and able to push back, a new, stable security order in Europe will not be possible. Concessions to Russia, by Ukraine or the EU and Nato, are not the way to achieve this. That this has been realised beyond Ukraine’s most ardent supporters in the Baltic states, Poland, the UK and the US is clear from German support for strengthening Nato’s northern flank and a general increase in Nato members’ defence spending."
Jun 8th 2022
EXTRACT: "Highly civilized people can turn into barbarians when demagogues and dictators exploit their fears and trigger their most atavistic instincts. Rape, torture, and massacres often happen when soldiers invade foreign countries. Commanding officers sometimes actively encourage such behavior to terrorize an enemy into submission. And sometimes it occurs when the officer corps loses control and discipline breaks down. Japanese and Germans know this, as do Serbs, Koreans, Americans, Russians, and many others."
Jun 1st 2022
EXTRACTS: "Like Metternich, Kissinger commits the fatal error of believing that a few wise policymakers can impose their will on the world. Worse, he believes they can halt domestically generated change and the power of nationalism. Many years ago, this is what Senator William Fulbright termed the “arrogance of power.” This approach failed in Vietnam, Iraq, and Afghanistan. It is also doomed to fail in Russia and Ukraine." ------ "Not surprisingly, Kissinger misunderstands Russia. He appears to believe that, because Russia has been an “essential part of Europe” for over four centuries, it is therefore fated to remain so for the foreseeable future.The claim is completely at odds with history." ---- "Finally, Kissinger misunderstands the implications of his own analysis for Western relations with Russia. “We are facing,” he said, “a situation now where Russia could alienate itself completely from Europe and seek a permanent alliance elsewhere." ---- "But what’s so bad about Russia’s isolating itself from Europe and becoming a vassal state of China? "
Jun 1st 2022
EXTRACTS: "According to the latest figures from China’s National Bureau of Statistics, China’s population grew from 1.41212 billion to just 1.41260 billion in 2021 – a record low increase of just 480,000, a mere fraction of the annual growth of eight million or so common a decade ago." ----- "China’s total fertility rate (births per woman) was 2.6 in the late 1980s – well above the 2.1 needed to replace deaths. It has been between 1.6 and 1.7 since 1994, and slipped to 1.3 in 2020 and just 1.15 in 2021."
Jun 1st 2022
EXTRACTS: "Casualties are very high. A very conservative estimate of overall Russian losses is that they have lost more troops killed since February 24 than in ten years of fighting in Afghanistan. This implies well over 40,000 men taken out of the fight, including the wounded." ----- "Away from the cauldron of Donbas, Belarus has been rattling its somewhat rusty sabre by deploying troops to its border with Ukraine. This is unlikely to trouble Kyiv. The Belarus president, Alexander Lukashenko, is well aware that he may need them at home to shore up his shaky regime."