Tag: Over-influence from precision/models

Decision Making Psychology with Rory Sutherland

Below are three excerpts from a great interview with Rory Sutherland on decision making psychology.

Understanding Human Behavior

That attempt to model economic behaviour as though it were Newtonian physics was responsible for many past mistakes. This is closer to weather forecasting than to conventional physics as a science. But it is still a science and can still make progress like a science. And the great news is that we are starting from such a low base. If our ability to understand and predict human behaviour only improves by a few percent a decade, the benefits will be immense. And even a tiny reduction in misdirected effort (by abandoning daft, ineffectual sunk-cost-plagued endeavours such as the war on drugs or, at a more modest level, badly conceived choice-architectures in a new range of cars) all can be economically transformative.

The Physical Fallacy

The problem we all face is “The physical fallacy”. All of us, even those the social sciences, have an innate bias where we are happier fixing problems with stuff, rather than with psychological solutions – building faster trains rather than putting wifi on existing trains, to use my oft cited example. But as Benjamin Franklin (no mean decision scientist himself) remarked “There are two ways of being happy: We must either diminish our wants or augment our means – either may do. The result is the same and it is for each man to decide for himself and to do that which happens to be easier.”

There is no reason to prefer one solution over another simply because it involves solid matter rather than grey matter. This is an interesting area where the advertising industry and the environmental movement (rarely seen as natural bedfellows) sometimes find common ground. Intangible value is the best kind of value – since the materials needed to create it are not in short supply.

Marketing and Advertising

If you need to understand why marketing and advertising (and reputation and brands) are important to the functioning of markets, Akerlof’s paper “The Market for Lemons” is essential reading. So too is his excellent and underread book “Identity Economics” written with Rachel Kranton. The problem is not with economics as practiced by great economists – it is the unquestioning adherence to the dumber assumptions of Basic Economics 101 as unthinkingly absorbed by the product of a thousand business schools.

You are particularly made aware of the pernicious influence of bad economics if you work in advertising. Even when advertising demonstrably works and is highly cost effective, people in finance and in the boards of companies don’t seem to like it very much. Since they have a mental model of the world in which everyone has perfect information, they have of course constructed in their heads a vision of the world in which marketing shouldn’t exist.

It Isn’t Easy To Understand How The World Works

Studying models of financial markets in which agents are too smart for asset bubbles to ever occur is a worthy, and even at times noble, endeavor. But when it comes to real-world policy decisions, economists need to bring to bear everything we know about the world, even things that we have had a tough time analyzing in formal economic models. And we need to keep in mind especially those facts about the world that remind us of our own ignorance. When I took a first-year macro class in graduate school from Larry Summers, Larry had a practice of presenting a model and then promptly proceeding to tear it down. I went up after class to complain that this was very discouraging. Larry Summers said something I have never forgotten: “It isn’t easy to understand how the world works.” Larry Summer’s maxim

It isn’t easy to understand how the world works

is an excellent mantra for an economist to repeat to himself or herself several times before giving policy advice.

source

Hiring and the Mismatch Problem

“We want to cling to these incredibly outdated and simplistic measures of ability.”
Malcolm Gladwell

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Hiring is difficult and we tend to fall back on antiquated tools that give us a number (something, anything) to help us evaluate potential employees. This creates what Malcolm Gladwell calls “mismatch problems” — when the criteria for evaluating job candidates is out of step with the reality of the job demands.

Of course, we never think our criteria is out of step.

The mismatch problem shows itself all over the sports world. Although the study below was released in 2008, Gladwell has long illustrated the point that sports combines (events professional sports leagues hold for scouts to evaluate potential draftees based on a battery of ‘tests’) don’t work.

Gladwell’s results echo what Michael Lewis talks about in Moneyball: Combines are a poor predictor of determining ultimate success. Mismatch problems transcend the sports world.

Teachers are another example. While we tend to evaluate teachers based on high test scores, the number of degrees and other credentials, that makes little difference in how well people actually teach.

Some companies, like Google, are trying to attack this problem. Google tried to find correlations between ‘great’ existing employees. When they find correlations, say like most people who score 9/10 on performance reviews, own a dog, they try to work that into their hiring. By constantly evaluating the actual results of their hiring, rethinking how they hire, and removing questions and evaluations that show no bearing on actual performance they are taking steps to try to eliminate the mismatch problem.

Google also knows hiring lacks certainty; they are just trying to continuously improve and refine the process. Interestingly, very few workforces are so evidence-based. Rather the argument becomes hiring works because it has always ‘worked’…

So why do mismatch problems exist?

Because we desire certainty. We want to impose certainty on something that is not, by nature, certain. The increase in complexity doesn’t help either.

“The craving for that physics-style precision does nothing but get you in terrible trouble.”

See the video here.

Interested in learning more? Check out measurements that mislead.

Malcolm Gladwell is the New York Times bestselling author of Blink:The Power of Thinking Without ThinkingThe Tipping Point: How Little Things Can Make a Big DifferenceOutliers:The Story of Success, and What the Dog Saw: And Other Adventures.

Seth Klarman: The Forgotten Lessons of 2008

Seth Klarman: The Forgotten Lessons of 2008

In this excerpt from his annual letter, investing great Seth Klarman describes 20 lessons from the financial crisis which, he says, “were either never learned or else were immediately forgotten by most market participants.”

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The Forgotten Lessons of 2008

One might have expected that the near-death experience of most investors in 2008 would generate valuable lessons for the future. We all know about the “depression mentality” of our parents and grandparents who lived through the Great Depression. Memories of tough times colored their behavior for more than a generation, leading to limited risk taking and a sustainable base for healthy growth. Yet one year after the 2008 collapse, investors have returned to shockingly speculative behavior. One state investment board recently adopted a plan to leverage its portfolio – specifically its government and high-grade bond holdings – in an amount that could grow to 20% of its assets over the next three years. No one who was paying attention in 2008 would possibly think this is a good idea.

Below, we highlight the lessons that we believe could and should have been learned from the turmoil of 2008. Some of them are unique to the 2008 melt- down; others, which could have been drawn from general market observation over the past several decades, were certainly reinforced last year. Shockingly, virtually all of these lessons were either never learned or else were immediately forgotten by most market participants.

Twenty Investment Lessons of 2008

  1. Things that have never happened before are bound to occur with some regularity. You must always be prepared for the unexpected, including sudden, sharp downward swings in markets and the economy. Whatever adverse scenario you can contemplate, reality can be far worse.
  2. When excesses such as lax lending standards become widespread and persist for some time, people are lulled into a false sense of security, creating an even more dangerous situation. In some cases, excesses migrate beyond regional or national borders, raising the ante for investors and governments. These excesses will eventually end, triggering a crisis at least in proportion to the degree of the excesses. Correlations between asset classes may be surprisingly high when leverage rapidly unwinds.
  3. Nowhere does it say that investors should strive to make every last dollar of potential profit; consideration of risk must never take a backseat to return. Conservative positioning entering a crisis is crucial: it enables one to maintain long-term oriented, clear thinking, and to focus on new opportunities while others are distracted or even forced to sell. Portfolio hedges must be in place before a crisis hits. One cannot reliably or affordably increase or replace hedges that are rolling off during a financial crisis.
  4. Risk is not inherent in an investment; it is always relative to the price paid. Uncertainty is not the same as risk. Indeed, when great uncertainty – such as in the fall of 2008 – drives securities prices to especially low levels, they often become less risky investments.
  5. Do not trust financial market risk models. Reality is always too complex to be accurately modeled. Attention to risk must be a 24/7/365 obsession, with people – not computers – assessing and reassessing the risk environment in real time. Despite the predilection of some analysts to model the financial markets using sophisticated mathematics, the markets are governed by behavioral science, not physical science.
  6. Do not accept principal risk while investing short-term cash: the greedy effort to earn a few extra basis points of yield inevitably leads to the incurrence of greater risk, which increases the likelihood of losses and severe illiquidity at precisely the moment when cash is needed to cover expenses, to meet commitments, or to make compelling long-term investments.
  7. The latest trade of a security creates a dangerous illusion that its market price approximates its true value. This mirage is especially dangerous during periods of market exuberance. The concept of “private market value” as an anchor to the proper valuation of a business can also be greatly skewed during ebullient times and should always be considered with a healthy degree of skepticism.
  8. A broad and flexible investment approach is essential during a crisis. Opportunities can be vast, ephemeral, and dispersed through various sectors and markets. Rigid silos can be an enormous disadvantage at such times.
  9. You must buy on the way down. There is far more volume on the way down than on the way back up, and far less competition among buyers. It is almost always better to be too early than too late, but you must be prepared for price markdowns on what you buy.
  10. Financial innovation can be highly dangerous, though almost no one will tell you this. New financial products are typically created for sunny days and are almost never stress-tested for stormy weather. Securitization is an area that almost perfectly fits this description; markets for securitized assets such as subprime mortgages completely collapsed in 2008 and have not fully recovered. Ironically, the government is eager to restore the securitization markets back to their pre-collapse stature.
  11. Ratings agencies are highly conflicted, unimaginative dupes. They are blissfully unaware of adverse selection and moral hazard. Investors should never trust them.
  12. Be sure that you are well compensated for illiquidity – especially illiquidity without control – because it can create particularly high opportunity costs.
  13. At equal returns, public investments are generally superior to private investments not only because they are more liquid but also because amidst distress, public markets are more likely than private ones to offer attractive opportunities to average down.
  14. Beware leverage in all its forms. Borrowers – individual, corporate, or government – should always match fund their liabilities against the duration of their assets. Borrowers must always remember that capital markets can be extremely fickle, and that it is never safe to assume a maturing loan can be rolled over. Even if you are unleveraged, the leverage employed by others can drive dramatic price and valuation swings; sudden unavailability of leverage in the economy may trigger an economic downturn.
  15. Many LBOs are man-made disasters. When the price paid is excessive, the equity portion of an LBO is really an out-of-the-money call option. Many fiduciaries placed large amounts of the capital under their stewardship into such options in 2006 and 2007.
  16. Financial stocks are particularly risky. Banking, in particular, is a highly lever- aged, extremely competitive, and challenging business. A major European bank recently announced the goal of achieving a 20% return on equity (ROE) within several years. Unfortunately, ROE is highly dependent on absolute yields, yield spreads, maintaining adequate loan loss reserves, and the amount of leverage used. What is the bank’s management to do if it cannot readily get to 20%? Leverage up? Hold riskier assets? Ignore the risk of loss? In some ways, for a major financial institution even to have a ROE goal is to court disaster.
  17. Having clients with a long-term orientation is crucial. Nothing else is as important to the success of an investment firm.
  18. When a government official says a problem has been “contained,” pay no attention.
  19. The government – the ultimate short- term-oriented player – cannot with- stand much pain in the economy or the financial markets. Bailouts and rescues are likely to occur, though not with sufficient predictability for investors to comfortably take advantage. The government will take enormous risks in such interventions, especially if the expenses can be conveniently deferred to the future. Some of the price-tag is in the form of back- stops and guarantees, whose cost is almost impossible to determine.
  20. Almost no one will accept responsibility for his or her role in precipitating a crisis: not leveraged speculators, not willfully blind leaders of financial institutions, and certainly not regulators, government officials, ratings agencies or politicians.

Below, we itemize some of the quite different lessons investors seem to have learned as of late 2009 – false lessons, we believe. To not only learn but also effectively implement investment lessons requires a disciplined, often contrary, and long-term-oriented investment approach. It requires a resolute focus on risk aversion rather than maximizing immediate returns, as well as an understanding of history, a sense of financial market cycles, and, at times, extraordinary patience.

False Lessons

  1. There are no long-term lessons – ever.
  2. Bad things happen, but really bad things do not. Do buy the dips, especially the lowest quality securities when they come under pressure, because declines will quickly be reversed.
  3. There is no amount of bad news that the markets cannot see past.
  4. If you’ve just stared into the abyss, quickly forget it: the lessons of history can only hold you back.
  5. Excess capacity in people, machines, or property will be quickly absorbed.
  6. Markets need not be in sync with one another. Simultaneously, the bond market can be priced for sustained tough times, the equity market for a strong recovery, and gold for high inflation. Such an apparent disconnect is indefinitely sustainable.
  7. In a crisis, stocks of financial companies are great investments, because the tide is bound to turn. Massive losses on bad loans and soured investments are irrelevant to value; improving trends and future prospects are what matter, regardless of whether profits will have to be used to cover loan losses and equity shortfalls for years to come.
  8. The government can reasonably rely on debt ratings when it forms programs to lend money to buyers of otherwise unattractive debt instruments.
  9. The government can indefinitely control both short-term and long-term interest rates.
  10. The government can always rescue the markets or interfere with contract law whenever it deems convenient with little or no apparent cost. (Investors believe this now and, worse still, the government believes it as well. We are probably doomed to a lasting legacy of government tampering with financial markets and the economy, which is likely to create the mother of all moral hazards. The government is blissfully unaware of the wisdom of Friedrich Hayek: “The curious task of economics is to demonstrate to men how little they really know about what they imagine they can design.”)

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Still curious? Check out Basically, It’s Over: A Parable About How One Nation Came To Financial Ruin by Charlie Munger.

The Mis-Match Problem

In this video, Malcolm Gladwell speaks on the challenge of hiring in the modern world.

One of those challenges, the mis-match problem, happens when we use criteria to judge someone for a job that is radically out of step with the actual demands of the job itself. Despite our best intentions we do this all of the time. Gladwell says “we want to cling to these incredibly outdated and simplistic measures of ability.”

Why do mis-match problems exist?
1. Our desire for certainty — the desire to impose certainty on something that is not certain.
2. Increase in complexity in professions.

“The craving for that physics-style precision does nothing but get you in terrible trouble.”

See more on the mis-match problem.

Malcolm Gladwell is a staff writer at the New Yorker and the author of The Tipping Point: How Little Things Make a Big Difference, Blink, Outliers and most recently, What the Dog Saw.