Mood swings and irrational behavior used to be called simply that: mood swings and irrational behavior.
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Emotional investors, by contrast, make decisions by impulse and hype fueled by irrational exuberance and irrational pessimism, rather than reason.
But we should guard against substituting irrational pessimism for irrational exuberance.
Irrational exuberance and irrational pessimism is more pronounced in momentum investing whereby investors chase after popular stocks networking in the late 1990s like JDS Uniphase (NASDAQ:JDSU), Ciena (NASDAQ:CIEN), Cisco Systems (NASDAQ:CSCO), and Lucent-Alcatel (NYSE:ALU) that now trade at a fraction of their 2001 highs.
It is not the market's "irrational exuberance" (it is still up some two-thirds since Alan Greenspan uttered those words nearly three years ago) that we need fear, but the Federal Reserve's irrational exuberance in mistakenly strangling the economy in the name of fighting a long-dead inflation.
Despite his irrational mania for free trade and open markets traits that he shares with you and a prime example perhaps of derivations at work Pareto still offers a useful schematic for making sense of the complex interplay of contradictory irrational factors lurking behind seemingly rational economic judgments.
It is not the market's "irrational exuberance" (it is still up some two thirds since Alan Greenspan uttered those words nearly three years ago) that we need fear, but the Federal Reserve's irrational exuberance in mistakenly strangling the economy in the name of fighting a long-dead inflation.
Mr. DEUTSCH: Just as we had irrational exuberance a couple of years ago in terms of capital flowing into the markets, I think you have irrational depression now where investors have a, you know, very pessimistic view, whether that's founded or unfounded, until there is some trigger mechanism to turn the tide.
When the economy is buoyed by too much borrowing, when those bills come due to every American household and to every American company that has been making a profit on irrational spending based on irrational lending, which, you know, which happen all over the place over the last several years, it's going to hurt people.
"They gave to their children an irrational hatred of Jews in the same way that people in Northern Ireland transmitted to their children an irrational hatred, for example, of Catholics, in the same way that people give to their children an outrageous and irrational hatred of those who are of different colour and all of those things, " she said.
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"The allocation of polling place resources is plainly irrational, non-uniform and likely discriminatory, " the suit states.
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After a long development cycle and a marketing blitz, Irrational Games will have ambitious sales targets.
It is, despite all of our irrational expectations, tracking along like a traditional tech boom market.
Don't be surprised if the market for Son shares lurches back to irrational exuberance.
Yet one thing is not new: the tendency of investors to veer off into irrational exuberance.
And blackmail usually works better when the practitioners are seen as irrational and unpredictable.
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The resultant 2008 book, Predictably Irrational, has sold 136, 000 copies, according to Nielsen BookScan.
The leadership in Pyongyang must appear wild and irrational enough to risk a suicidal war.
Whether that human economic behavior is rational or irrational may ultimately be a matter of perspective.
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The evidence at trial favored Hotchkiss, and the jury's verdict was "unjust and irrational, " they wrote.
The irrational rules governing the process prevent it from producing the market equilibrium price.
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The lawyers claimed Cambridgeshire County Council made an "irrational" decision when funding his care.
Judges unanimously rejected that a decision made in June 2010 was unlawful because it was irrational.
That rational process is not helping someone in the middle of an irrational act.
The illusion of control clouds our thinking and leads us to make poor or irrational choices.
This is irrational exuberance, according to Schiff, as the market is fully subsidized by the Fed.
Greed in the boardroom typically manifests as an irrational optimism about the value of a program.
Disunity would be irrational if EU members always saw their common interests as paramount.
Personal preferences are displaced by irrational collective preferences, which pretend to serve the greater good.
Did lower Soviet fertility lead to a more aggressive, bellicose, and irrational foreign policy?
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