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Posts Tagged ‘observer bias’

Laplace’s Hammer: The End of Economics

Laplace’s Hammer: The End of Economics

Courtesy of Tim at The Psy-Fi Blog 

Clever Man, Stupid Idea

Simon-Pierre LaplaceSimon-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.

Newton’s Error

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.

Observer Bias

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…
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Help One Of Our Own PSW Members

"Hello PSW Members –

This is a non-trading topic, but I wanted to post it during trading hours so as many eyes can see it as possible.  Feel free to contact me directly at jennifersurovy@yahoo.com with any questions.

Last fall there was some discussion on the PSW board regarding setting up a YouCaring donation page for a PSW member, Shadowfax. Since then, we have been looking into ways to help get him additional medical services and to pay down his medical debts.  After following those leads, we are ready to move ahead with the YouCaring site. (Link is posted below.)  Any help you can give will be greatly appreciated; not only to help aid in his medical bill debt, but to also show what a great community this group is.

http://www.youcaring.com/medical-fundraiser/help-get-shadowfax-out-from-the-darkness-of-medical-bills-/126743"

Thank you for you time!

 
 

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What Will Fed Do When The Overheated Sectors Carrying US Economy Start Cooling?

What Will Fed Do When The Overheated Sectors Carrying US Economy Start Cooling?

Courtesy of  

While some sectors of the US economy remain buried at or near depression levels and others are just so so, others are red hot. They are at record levels reaching or exceeding the levels hit at the tops of the housing bubble in 2006, and at the top of the internet bubble. For data that shows that, we need look no further than today’s release of initial jobless claims. They hit another record low for the latest reported week of July.

If the hot sectors of the US economy are driving the tepid growth in the overall economic picture, what happens if those hot sectors ...



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Chart School

3 Things Worth Thinking About

Courtesy of Doug Short.

Advisor Perspectives welcomes guest contributions. The views presented here do not necessarily represent those of Advisor Perspectives.

I spent a good deal of time yesterday going through a point-counterpoint analysis of the current bull market. However, there are a few things that have been sitting on my desk that I wanted to make some comments on, and given we are now winding up the week, this is a good day address them.

1) SEC Votes To Put "Gates" On Money Market Funds

Zerohedge posted a very important article yesterday that deserves some serious consideration by all investors. To wit:

"Moments ago the gates arrived, when following a c...



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Zero Hedge

How Iran's Supreme Leader Really Feels: "Annihilation Of The Murderous, Usurping Regime Of Israel Is The Only Cure"

Courtesy of ZeroHedge. View original post here.

Submitted by Tyler Durden.

If there was any doubt whether following the recent, and quite surprising, detente between the US and Iran, which from a state that was shunned by the US for decades has transformed into a country that has been actively courted by the US in recent months, that Iran would change its tune toward that other bossom US ally in the middle east, Israel, it can be put to reset following the latest pronouncement by Iran's supreme leader Ayatollah Ali Khamenei, who on Wednesday called for a referendum canvassing the Arabs and Jews that live in Israel in order to end the "Zionist state."

Khamenei and his predecessor the Ayatollah Rouhollah Khomeini have called repeatedly...



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Insider Scoop

UPDATE: 3M Q2 Earnings Meet Estimates

Courtesy of Benzinga.

Related MMM Earnings Scheduled For July 24, 2014 Stocks To Watch For July 24, 2014 Nasdaq Seen Rallying on Apple, Facebook Results (Fox Business)

3M Company (NYSE: MMM) reported in-line earnings for the second quarter.

The St. Paul, Minnesota-based company posted a quarterly net profit of $1.27 billion, or $1.91 per share, versus a year-ago profit of $1.2 billio...



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All About Trends

Mid-Day Update

Reminder: David is available to chat with Members, comments are found below each post.

Click here for the full report.




To learn more, sign up for David's free newsletter and receive the free report from All About Trends - "How To Outperform 90% Of Wall Street With Just $500 A Week." Tell David PSW sent you. - Ilene...

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Option Review

Sizable Call Spread Trades On Orexigen

A large call spread initiated on Orexigen Therapeutics, Inc. (Ticker: OREX) on Monday morning looks for shares in the name to rally approximately 30% by September expiration. The September expiration is noteworthy as the company awaits the results of the FDA’s review of its resubmitted New Drug Application (NDA) for NB32, an investigational medication being evaluated for weight loss, after the review was extended for three months back in June. The upcoming Prescription Drug User Fee Act (PDUFA) date is September 11, 2014, according to a press release issued by the company. Shares in Orexigen today are up roughly 0.40% at $5.34 as of 2:15 p.m. ET.

...

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Sabrient

Sector Detector: Bulls remain unfazed by borderline Black Swans

Courtesy of Sabrient Systems and Gradient Analytics

Despite a highly eventful week in the news, not much has changed from a stock market perspective. No doubt, investors have grown immune to the daily reports of geopolitical turmoil, including Ukraine vs. Russia for control of the eastern regions, Japan’s dispute with China over territorial waters, Sunni vs. Shiite for control of Iraq, Christians being driven out by Islamists, and other religious conflicts in places like Nigeria and Central African Republic. But last Thursday’s news of the Malaysian airliner tragically getting shot down over Ukraine, coupled with Israel’s ground incursion into Gaza, had the makings of a potential Black Swan event, which in my view is the only thing that could derail the relentless bull march higher in stocks.

Nevertheless, when it became clear that the airline...



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OpTrader

Swing trading portfolio - week of July 21st, 2014

Reminder: OpTrader is available to chat with Members, comments are found below each post.

 

This post is for all our live virtual trade ideas and daily comments. Please click on "comments" below to follow our live discussion. All of our current  trades are listed in the spreadsheet below, with entry price (1/2 in and All in), and exit prices (1/3 out, 2/3 out, and All out).

We also indicate our stop, which is most of the time the "5 day moving average". All trades, unless indicated, are front-month ATM options. 

Please feel free to participate in the discussion and ask any questions you might have about this virtual portfolio, by clicking on the "comments" link right below.

To learn more about the swing trading virtual portfolio (strategy, performance, FAQ, etc.), please click here ...



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Stock World Weekly

Stock World Weekly

Newsletter writers are available to chat with Members regarding topics presented in SWW, comments are found below each post.

Here's the latest Stock World Weekly. Please use your PSW user name and password to log in. (You may take a free trial here.)

#452331232 / gettyimages.com ...

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Market Shadows

Danger: Falling Prices

Danger: Falling Prices

By Dr. Paul Price of Market Shadows

 

We tried holding up stock prices but couldn’t get the job done. Market Shadows’ Virtual Value Portfolio dipped by 2% during the week but still holds on to a market-beating 8.45% gain YTD. There was no escaping the downdraft after a major Portuguese bank failed. Of all the triggers for a large selloff, I’d guess the Portuguese bank failure was pretty far down most people's list of "things to worry about." 

All three major indices gave up some ground with the Nasdaq composite taking the hardest hi...



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Digital Currencies

Bitcoin Vs Gold - The Infographic

Courtesy of ZeroHedge. View original post here.

Submitted by Tyler Durden.

While Marc Faber has said "I will never sell my gold," he also noted "I like the idea of Bitcoin," and the battle between the 'alternative currencies' continues. The following infographic provides a succinct illustration of the similarities and differences between gold and bitcoin.

Please include attribution to www.jmbullion.com with this graphic.

...

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Pharmboy

Biotechs & Bubbles

Reminder: Pharmboy is available to chat with Members, comments are found below each post.

Well PSW Subscribers....I am still here, barely.  From my last post a few months ago to now, nothing has changed much, but there are a few bargins out there that as investors, should be put on the watch list (again) and if so desired....buy a small amount.

First, the media is on a tear against biotechs/pharma, ripping companies for their drug prices.  Gilead's HepC drug, Sovaldi, is priced at $84K for the 12-week treatment.  Pundits were screaming bloody murder that it was a total rip off, but when one investigates the other drugs out there, and the consequences of not taking Sovaldi vs. another drug combinations, then things become clearer.  For instance, Olysio (JNJ) is about $66,000 for a 12-week treatment, but is approved for fewer types of patients AND...



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Promotions

See Live Demo Of This Google-Like Trade Algorithm

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.

Follow this link to register for their training webinar where they’ll demonstrate the tested and proven Algorithm powered by the same technological principles that have made GOOGLE the #1 search engine on the planet!

And get this…had you done nothing b...



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