Complexity researchers who study the behavior of stock markets may have identified a signal that precedes crashes.
They say the telltale sign is a measure of co-movement, or the likelihood of stocks to move in the same direction. When a market is healthy, co-movement is low. But in the months and years before a crash, co-movement seems to grow.
Regardless of whether stock prices go up or down or stay the same, they do so in tandem. People are copying each other, and a small nudge can send everyone in the same direction. The system appears primed for collapse.
“One of the most important things happening now is that economists are trying to understand, what is systemic risk? When is the entire system vulnerable to disaster? Our results show that we have a direct, unambiguous measure of that vulnerability,” said Yaneer Bar-Yam, president of the New England Complex Systems Institute.
Seen through an econophysicist’s eyes, a stock market panic is an avalanche.
Bar-Yam’s findings, released Feb. 13 on arXiv, are part of an emerging research field known as econophysics. It applies to economics insights from the physical world, especially from systems in which networks of interacting units produce radical collective behaviors.
Heated water turning to gas is one such behavior, known technically as a phase transition. Another is snow gathering into an avalanche. Seen through an econophysicist’s eyes, a stock market panic is an avalanche, too.
Many improbable occurrences conspired to create Earth’s human-friendly design, and they would indeed be puzzling if ours were the only solar system in the universe. But today we know of hundreds of other solar systems, and few doubt that there exist countless more among the billions of stars in our galaxy. Planets of all sorts exist, and obviously, when the beings on a planet that supports life examine the world around them, they are bound to find that their environment satisfies the conditions they require to exist.
Many people would like us to use these coincidences as evidence of the work of God. The idea that the universe was designed to accommodate mankind appears in theologies and mythologies dating from thousands of years ago. In Western culture the Old Testament contains the idea of providential design, but the traditional Christian viewpoint was also greatly influenced by Aristotle, who believed "in an intelligent natural world that functions according to some deliberate design."
That is not the answer of modern science. As recent advances in cosmology suggest, the laws of gravity and quantum theory allow universes to appear spontaneously from nothing. Spontaneous creation is the reason there is something rather than nothing, why the universe exists, why we exist. It is not necessary to invoke God to light the blue touch paper and set the universe going.
Our universe seems to be one of many, each with different laws. That multiverse idea is not a notion invented to account for the miracle of fine tuning. It is a consequence predicted by many theories in modern cosmology. If it is true it reduces the strong anthropic principle to the weak one, putting the fine tunings of physical law on the same footing as the environmental factors, for it means that our cosmic habitat—now the entire observable universe—is just one of many.
Simon-Pierre Laplace was a Very Clever Man who did many Very Clever Things. Unfortunately, like many clever men, having got hold of a Brilliant Idea he was rather inclined to go off and use it on everything in sight, which led to a number of Very Odd Conclusions. In fact as far as science goes, he may well have been the original man with a hammer; taking aim at every problem as though it was a nail.
As is the way of these things economists got hold of Laplace’s ideas, converted them to their own and started developing delicate and intricate webs of theories and practices. Unfortunately, over the succeeding three hundred years they’ve failed to keep up with advances in physics and biology, rather leaving economists as the only believers in an approach that suggests we have no free will, a position from which they’re having to be dug out and defused, one unexploded theorist at a time.
When Isaac Newton published his theory of gravity he knew it contained a serious flaw; his equations didn’t exactly match what was observed. He reckoned, correctly, that the differences between his theory and the observations were down to the gravitational effect on the planets of other planets – so called perturbations, which he didn’t know how to mathematically model. He said:
“But to consider simultaneously all these causes of motion and to define these motions by exact laws admitting of easy calculation exceeds, if I am not mistaken, the force of any human mind.”
And, of course, he was mistaken. The force of Laplace’s mind successfully solved the problem. Having achieved this, though, Laplace went a stage further. Because he could exactly calculate the position of any planet he could compare this with the results of observations from astronomers. What he discovered changed human history.
It turned out that observers made errors, but they made them in a particular way – their observations fell about the actual position of the planet in a very distinctive pattern. This pattern, of course, was the ultra-familiar Bell curve or normal distribution. Laplace realised that human error was statistically quantifiable and, therefore, could be effectively eliminated from the data. This…
This one matters a lot. Abenomics was predicated on a lunatic notion—namely, that the economic ills from Japan’s massive debt overhang could be cured by a central bank bond buying spree that was designed to be nearly 3X larger relative to its GDP than that of the Fed. Yet anyone with a modicum of common sense and market experience long ago ...
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As Chief Strategist for STA Wealth Management, I start each and every day by consuming copious amounts of a heavily caffeinated beverage and a data feed from a litany of web and blog sites. Over the last couple of days in particular, they have been numerous articles on whether the market is currently in a bubble. Here are a few as an example that I just grabbed from RealClearMarkets.com:
"Freedom had been hunted round the globe; reason was considered as rebellion; and the slavery of fear had made men afraid to think. But such is the irresistible nature of truth, that all it asks, and all it wants, is the liberty of appearing." - Thomas Paine
The label of “fringe” is a common one used by statists, bureaucrats and paid shills in order to marginalize those who would stand against government corruption. The primary assertion being sold is that the “majority” joyously supports the establishment; and the majority, of c...
Shares in Chipotle Mexican Grill Inc. (Ticker: CMG) opened higher on Thursday morning, rising more than 6.0% to $589.00, after the restaurant operator reported better than expected first-quarter sales ahead of the opening bell. But, the stock began to falter just before lunchtime on concerns the burrito-maker will increase menu prices for the first time in three years. The price of Chipotle’s shares have since fallen into negative territory and currently trade down 3.5% on the session at $532.89 as of 1:50 p.m. ET.
This week I’m in Disney World with the family, our first proper vacation all together in years. As such, I’m off the grid and away from computers of any kind (I’m trying to stay married, you guys). But while I’m gone, I’ve left you some stuff to catch up on…
These were the biggest posts – as read and shared by you – during the first quarter of this year. The theme of today’s collection is good investing and understanding the psychological forces at work when we commit capital. No matter how long I’m doing this...
The following are the M&A deals, rumors and chatter circulating on Wall Street for Thursday April 17, 2014.
Post Holdings to Acquire Michael Foods for $2.45B
The Deal: Post Holdings (NYSE: POST) confirmed Thursday it will acquire Michael Foods from its owners, which include GS Capital Partners and affiliates of Thomas H. Lee Partners for $2.45 billion. It was rumored Wednesday that Post had beat out rival Tyson Foods (NYSE: TSN) for the right to acquire Michael Foods.
Last week’s market performance was nasty again, especially for the Small-cap Growth style/cap, down 4%. Large-caps faired the best, losing only 2.7%. That’s ugly and today’s market seemed likely to be uglier today with escalating tensions over the weekend in Ukraine.
But once again, positive economic trumped the beating of the war drums. Retail Sales jumped up 1.1% over a projected 0.8% and last month’s tepid 0.3%, which was revised up to 0.7%. While autos led, sales were up solidly overall. Business inventories were about as expected with a positive tone. Citigroup (C) handily beat estimates to add to the morning’s surprises. As a result, the market was positive through most of the day, led by the DJI, up 0.91%, and the S&P 500, up 0.82%. NASDAQ had a less...
[Facebook] The social network is only weeks away from obtaining regulatory approval in Ireland for a service that would allow its users to store money on Facebook and use it to pay and exchange money with others, according to several people involved in the process.
The authorisation from Ireland’s central bank to become an “e-money” institution would allow ...
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I just wanted to be sure you saw this. There’s a ‘live’ training webinar this Thursday, March 27th at Noon or 9:00 pm ET.
If GOOGLE, the NSA, and Steve Jobs all got together in a room with the task of building a tremendously accurate trading algorithm… it wouldn’t just be any ordinary system… it’d be the greatest trading algorithm in the world.
Well, I hate to break it to you though… they never got around to building it, but my friends at Market Tamer did.
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Ladies and Gentlemen, hobos and tramps,
Cross-eyed mosquitoes, and Bow-legged ants,
I come before you, To stand behind you,
To tell you something, I know nothing about.
And so the circus begins in Union Square, San Francisco for this weeks JP Morgan Healthcare Conference. Will the momentum from 2013, which carried the S&P Spider Biotech ETF to all time highs, carry on in 2014? The Biotech ETF beat the S&P by better than 3 points.
As I noted in my previous post, Biotechs Galore - IPOs and More, biotechs were rushing to IPOs so that venture capitalists could unwind their holdings (funds are usually 5-7 years), as well as take advantage of the opportune moment...
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