Posts Tagged ‘Efficient Market Hypothesis’

Breaking the Guild of Macroeconomists

Tim at The Psy-Fi Blog compares the science of economics, or actually the pseudo-science, with medical theory in the days of Galen, the ancient Greek physician:Galen

Galen contributed a substantial amount to the Hippocratic understanding of pathology. Under Hippocrates’ bodily humors theory, differences in human moods come as a consequence of imbalances in one of the four bodily fluids: blood, yellow bile, black bile, and phlegm. Galen advanced this theory, creating a typology of human temperaments. An imbalance of each humor corresponded with a particular human temperament (blood-sanguine, black bile-melancholic, yellow bile-choleric, and phlegm-phlegmatic). Individuals with sanguine temperaments are extroverted and social. Choleric people have energy, passion and charisma. Melancholics are creative, kind and considerate. Phlegmatic temperaments are characterized by dependability, kindness, and affection.

While that theory proved wrong, Galen made some interesting contributions to medical science:

Galen’s principal interest was in human anatomy, but Roman law had prohibited the dissection of human cadavers since about 150 BCE. Because of this restriction, Galen performed anatomical dissections on living (vivisection) and dead animals, mostly focusing on pigs and primates. This work turned out to be particularly useful because in most cases, the anatomical structures of these animals closely mirror those of humans. Galen clarified the anatomy of the trachea and was the first to demonstrate that the larynx generates the voice. Galen may have understood the importance of artificial ventilation, because in one of his experiments he used bellows to inflate the lungs of a dead animal.

Among Galen’s major contributions to medicine was his work on the circulatory system. He was the first to recognize that there were distinct differences between venous (dark) and arterial (bright) blood. Although his many anatomical experiments on animal models led him to a more complete understanding of the circulatory system, nervous system, respiratory system and other structures, his work was not without scientific inaccuracies. Wikipedia. 

- Ilene

Breaking the Guild of Macroeconomists

Courtesy of Tim at Psy-Fi Blog 

Playskool's Mrs. Potato Head and Jeep, portraying Marmaduke, cross paths at the BlogHer '10 conference in New York, August 6, 2010. Hasbro and Fox Home Entertainment are both participating sponsors at this year's blogger conference. REUTERS/Ray Stubblebine/Hasbro/Handout  (UNITED STATES - Tags: SOCIETY)

Economic Entertainment

In an entertaining piece Economics is Hard. Don’t Let Bloggers Tell You Otherwise Kartik Athreya of the Fed in Richmond has suggested that financial bloggers are a mentally incontinent bunch, pathologically incapable of stopping themselves from opining on financial matters on which they actually offer no insight. Now, leaving aside the question of whether we want our professional economists to be entertaining, this opens up the question of whether untrained commentators can…
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Reich Levels Broadside at Greenspan, Rubin, and Summers, and Phony Financial Reform

I posted this article earlier, but now Jesse writes a great intro. – Ilene

Reich Levels Broadside at Greenspan, Rubin, and Summers, and Phony Financial Reform

Courtesy of JESSE’S CAFÉ AMÉRICAIN

Robert Reich is exactly correct. Back in 1999 I started questioning what Robert Rubin might have said to Alan Greenspan in a private meeting in 1997 to reverse his policy bias after his famous "irrational exuberance" speech and embrace the monetary easing that led to the tech bubble, and to join the fight against regulation, resulting in the repeal of Glass-Steagall in which the Fed was absolutely instrumental.

PBS Frontline – The Warning: The Roots of the Financial Crisis

This was no accident, in my opinion. This was no misplaced belief in ‘the efficient market hypothesis.’ This was not the culmination of the neo-liberal fascination with a mythology of human nature that would make Rousseau blush in its unthinking naiveté. And for Greenspan to say now, I am sorry, I guess I was mistaken, is more prevarication from the master dissembler.

There were plenty of enablers to this financial fraud. There always are many more people who do not act out of principle, or inside involvement and knowledge, but out of their own selfish bias and greed or craven fear that compels them to ‘go with the flow.’

And there is little better example of this than the many people who are even now turning a willful eye away from the blatant government manipulation of the stock and commodity markets, in particular the silver market. They do not wish to believe it, so they ignore it, and even ridicule it depending on how deeply it affects their personal interests. But the overall body of evidence is compelling enough to provoke further investigation, and the refusal to allow audits and independent investigation starts to become an overwhelming sign of a coverup. I am not saying that it is correct, or that I know something, but I am saying to not investigate it thoroughly and to air all the details, is highly suspicious and not in the interests of the truth. I did not know, for example, that Madoff was conducting a Ponzi scheme, but the indications were all there and a simple investigation and disclosure would have revealed the truth, one way or the other.

"Fiat justitia ruat caelum." Let justice be done though the heaven’s fall. This is the principle…
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Efficient Market Hypothesis: True “Villain” of the Financial Crisis?

This article discusses Robert Prechter’s view of the Efficient Market Hypothesis. For more from Elliott Wave International, download this free 10-page issue of Robert Prechter’s Elliott Wave Theorist.

Efficient Market Hypothesis: True "Villain" of the Financial Crisis?

economy lessons, gravity lessonsBy Robert Folsom, courtesy of Elliott Wave International

When a maverick idea becomes vindicated, there’s a good story to tell. It usually involves a person (or small group of people) who courageously challenge the orthodoxy of the day — and, over time, the unorthodox yet better idea prevails.

A "good story" of this sort has surfaced during the current financial crisis. A chapter of the story appeared in a recent New York Times article, "Poking Holes in a Theory on Markets." The theory in question is the efficient market hypothesis (EMH), which the article suggested is so hazardous that it "is more or less responsible for the financial crisis." This quote tells you most of what you need to know:

"In the last decade, the efficient market hypothesis, which had been near dogma since the early 1970s, has taken some serious body blows. First came the rise of the behavioral economists, like Richard H. Thaler at the University of Chicago and Robert J. Shiller at Yale, who convincingly showed that mass psychology, herd behavior and the like can have an enormous effect on stock prices — meaning that perhaps the market isn’t quite so efficient after all. Then came a bit more tangible proof: the dot-com bubble, quickly followed by the housing bubble. Quod erat demonstrandum."

In case your Latin is rusty, Quod erat demonstrandum means "which was to be demonstrated." Its abbreviation (QED) appears at the conclusion of a mathematical proof. In this case, the massive financial bubbles of recent years are the proof that refutes the efficient market hypothesis, which argues that markets move in a "random walk" and are not patterned.

Similar articles in the financial press have reported the demise of the EMH. Just this week an Economist magazine blog included this bold declaration:

"No one has yet produced a version of the EMH which can be tested and fits the evidence. Thus, the EMH must logically be discarded, as a valid hypothesis must be testable."

QED, indeed — I agreed years ago that the random walk was implausible. But I didn’t come to this view because of behavioral economists, although their work…
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Six Impossible Things Before Breakfast

"Science advances one funeral at a time." Max Planck

Six Impossible Things Before Breakfast

six impossible things before breakfastCourtesy of John Mauldin

In this issue:
Six impossible things before breakfast, or how EMH has damaged our industry
The Dead Parrot of Finance
The Queen of Hearts and impossible beliefs
Slaves of some defunct economist
Prima facie case against EMH — Forever blowing bubbles
The EMH ‘Nuclear Bomb’

The Efficient Market Hypothesis, according to Shiller, is one of the most remarkable errors in the history of economic thought. EMH should be consigned to the dustbin of history. We need to stop teaching it, and brainwashing the innocent. Rob Arnott tells a lovely story of a speech he was giving to some 200 finance professors. He asked how many of them taught EMH – pretty much everyone’s hand was up. Then he asked how many of them believed it. Only two hands stayed up!

And we wonder why funds and banks, full of the best and brightest, have made such a mess of things. Part of the reason is that we have taught economic nonsense to two generations of students. They have come to rely upon models based on assumptions that are absurd on their face. And then they are shocked when the markets deliver them a "hundred-year flood" every 4 years. The models say this should not happen. But do they abandon their models? No, they use them to convince regulators that things should not be changed all that much. And who can argue with a model that was the basis for a Nobel Prize?

I am again out of town this week, but I have been saving a speech done by my friend James Montier of Société Générale in London on the problems with the Efficient Market Hypothesis (EFM). While parts of it are wonkish, there are also parts that are quite funny (at least to an economist).

Ideas have consequences, and bad ideas usually have bad consequences. The current maelstrom from which we are emerging (finally, if in fits and starts) has many culprits. A lot of bad ideas and poor management that came together to create the perfect storm. Today, we look at some of the ideas that are part of the problem but are too often glossed over


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The psychology of economic forecasting

The psychology of economic forecasting

Courtesy of Edward Harrison of the site Credit Writedowns.

During the last generation, the economics profession has veered toward a ‘science’ model of economics and finance. The intellectual underpinnings for this development began with the Efficient Market Hypothesis (EMH) and has continued in no small measure due to what is often termed ‘University of Chicago School Economics.’  If you are looking for a good read on what is wrong with the EMH view of the world, you should get ready for Justin Fox’s “The Myth of the Rational Market” which is coming to a bookstore near you.

My own view is that many economists today are really frustrated scientists looking to ply their science and math craft in economics. In reality, economics is a social science with large influences from psychology and the scientific view ignores this.  However, the fact that psychology plays a large role in economics is something that is increasingly appreciated, as the Nobel Prize received by Daniel Kahneman attests.

So, I am not going to discuss EMH or rational markets.  Rather I want to delve into the psychology of economic forecasting and why economists act as they do.  Late last month, I posted an article with an attached video in which Marc Faber made the very astute comment, “it’s very tough for a forecaster who was ultra-bearish to stay bearish, because if he’s wrong he has a reputational risk.”  What I believe Faber was saying is this: an economist who is proved wrong is an economist who loses credibility.  This statement is at the heart of economic forecasting.

What Faber is giving voice to is the very real concern that any economic forecaster feels in making a prediction. If one is proved right, then plaudits will follow.  If one gets it wrong, the Bronx cheer is what you are likely to get. This is true for macroeconomists as much as for Wall Street analysts.  I will give you two examples from Wall Street to illustrate my point.

Henry Blodget: Amazon to $400

In October of 1998, Blodget predicted that Amazon’s stock would soar to $400 a share.  At the time, he was a little known analyst at Oppenheimer, the same company for which Meredith Whitney worked until recently.  His Amazon prediction propelled…
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Zero Hedge

BBC Claims Iranian Government Is Lying About Outbreak: Real Death Toll Is 210, Not 34

Courtesy of ZeroHedge View original post here.

Given the Iranian regime's recent history of brazenly lying to the public despite its obvious culpability, we were certainly intrigued when a local lawmaker in Qom told reporters that at least 50 people had died from the coronavirus in his city alone.

Iranian authorities denied these ...



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Phil's Favorites

Don't fear a 'robot apocalypse' - tomorrow's digital jobs will be more satisfying and higher-paid

  Don't fear a 'robot apocalypse' – tomorrow's digital jobs will be more satisfying and higher-paid

Tomorrow’s good jobs will require digital skills like programming. alvarez/Getty Images

Courtesy of Christos A. Makridis, Massachusetts Institute of Technology

If you’re concerned that automation and artificial intelligence are going to disrupt the economy over the next decade, join the club. But while policymakers and academics agree there’ll be significant disruption, they differ about its impa...



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Kimble Charting Solutions

Financial Crisis Deja Vu: Home Construction Index Double Top?

Courtesy of Chris Kimble

Most of us remember the 2007-2009 financial crisis because of the collapse in home prices and its effect on the economy.

One key sector that tipped off that crisis was the home builders.

The home builders are an integral piece to our economy and often signal “all clears” or “short-term warnings” to investors based on their economic health and how the index trades.

In today’s chart, we highlight the Dow Jones Home Construction Index. It has climbed all the way back to its pre-crisis highs… BUT it immediately reversed lower from there.

This raises concerns about a double top.

This pr...



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Insider Scoop

A Peek Into The Markets: US Stock Futures Plunge Amid Coronavirus Fears

Courtesy of Benzinga

Pre-open movers

U.S. stock futures traded lower in early pre-market trade. South Korea confirmed 256 new coronavirus cases on Thursday, while China reported an additional 327 new cases. Data on U.S. international trade in goods for January, wholesale inventories for January and consumer spending for January will be released at 8:30 a.m. ET. The Chicago PMI for February is scheduled for release at 9:45 a.m. ET, while the University of Michigan's consumer sentime...



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Biotech & Health

Could coronavirus really trigger a recession?

 

Could coronavirus really trigger a recession?

Coronavirus seems to be on a collision course with the US economy and its 12-year bull market. AP Photo/Ng Han Guan

Courtesy of Michael Walden, North Carolina State University

Fears are growing that the new coronavirus will infect the U.S. economy.

A major U.S. stock market index posted its biggest two-day drop on record, erasing all the gains from the previous two months; ...



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The Technical Traders

SPY Breaks Below Fibonacci Bearish Trigger Level

Courtesy of Technical Traders

Our research team wanted to share this chart with our friends and followers.  This dramatic breakdown in price over the past 4+ days has resulted in a very clear bearish trigger which was confirmed by our Adaptive Fibonacci Price Modeling system.  We believe this downside move will target the $251 level on the SPY over the next few weeks and months.

Some recent headline articles worth reading:

On January 23, 2020, we ...



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Phil will discuss positions, COVID-19, market volatility -- the selloff -- and more! 

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Mike will show off the TradeExchange's new platform which you can try for free.  

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Chart School

Oil cycle leads the stock cycle

Courtesy of Read the Ticker

Sure correlation is not causation, but this chart should be known by you.

We all know the world economy was waiting for a pin to prick the 'everything bubble', but no one had any idea of what the pin would look like.

Hence this is why the story of the black swan is so relevant.






There is massive debt behind the record high stock markets, there so much debt the political will required to allow central banks to print trillions to cover losses will likely effect elections. The point is printing money to cover billions is unlikely to upset anyone, however printing trillions will. In 2007 it was billions, in 202X it ...

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Members' Corner

Threats to democracy: oligarchy, feudalism, dictatorship

 

Threats to democracy: oligarchy, feudalism, dictatorship

Courtesy of David Brin, Contrary Brin Blog 

Fascinating and important to consider, since it is probably one of the reasons why the world aristocracy is pulling its all-out putsch right now… “Trillions will be inherited over the coming decades, further widening the wealth gap,” reports the Los Angeles Times. The beneficiaries aren’t all that young themselves. From 1989 to 2016, U.S. households inherited more than $8.5 trillion. Over that time, the average age of recipients rose by a decade to 51. More ...



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Digital Currencies

Altcoin season 2.0: why bitcoin has been outgunned by crypto rivals since new year

 

Altcoin season 2.0: why bitcoin has been outgunned by crypto rivals since new year

‘We have you surrounded!’ Wit Olszewski

Courtesy of Gavin Brown, Manchester Metropolitan University and Richard Whittle, Manchester Metropolitan University

When bitcoin was trading at the dizzying heights of almost US$2...



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ValueWalk

What US companies are saying about coronavirus impact

By Aman Jain. Originally published at ValueWalk.

With the coronavirus outbreak coinciding with the U.S. earnings seasons, it is only normal to expect companies to talk about this deadly virus in their earnings conference calls. In fact, many major U.S. companies not only talked about coronavirus, but also warned about its potential impact on their financial numbers.

Q4 2019 hedge fund letters, conferences and more

Coronavirus impact: many US companies unclear

According to ...



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Lee's Free Thinking

Why Blaming the Repo Market is Like Blaming the Australian Bush Fires

 

Why Blaming the Repo Market is Like Blaming the Australian Bush Fires

Courtesy of  

The repo market problem isn’t the problem. It’s a sideshow, a diversion, and a joke. It’s a symptom of the problem.

Today, I got a note from Liquidity Trader subscriber David, a professional investor, and it got me to thinking. Here’s what David wrote:

Lee,

The ‘experts’ I hear from keep saying that once 300B more in reserves have ...



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Mapping The Market

How IPOs Are Priced

Via Jean Luc 

Funny but probably true:

...

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Philip R. Davis is a founder Phil's Stock World, a stock and options trading site that teaches the art of options trading to newcomers and devises advanced strategies for expert traders...

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