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Innovation Blues

Information asymmetry - Wikipedia, the free encyclopedia - 0 views

  • In economics and contract theory, information asymmetry deals with the study of decisions in transactions where one party has more or better information than the other. This creates an imbalance of power in transactions which can sometimes cause the transactions to go awry, a kind of market failure in the worst case. Examples of this problem are adverse selection,[1] moral hazard, and information monopoly.[2] Most commonly, information asymmetries are studied in the context of principal–agent problems. In 2001, the Nobel Prize in Economics was awarded to George Akerlof, Michael Spence, and Joseph E. Stiglitz "for their analyses of markets with asymmetric information."[3]
  • Information asymmetry models assume that at least one party to a transaction has relevant information whereas the other(s) do not. Some asymmetric information models can also be used in situations where at least one party can enforce, or effectively retaliate for breaches of, certain parts of an agreement whereas the other(s) cannot.
  • In adverse selection models, the ignorant party lacks information while negotiating an agreed understanding of or contract to the transaction, whereas in moral hazard the ignorant party lacks information about performance of the agreed-upon transaction or lacks the ability to retaliate for a breach of the agreement. An example of adverse selection is when people who are high risk are more likely to buy insurance, because the insurance company cannot effectively discriminate against them, usually due to lack of information about the particular individual's risk but also sometimes by force of law or other constraints. An example of moral hazard is when people are more likely to behave recklessly after becoming insured, either because the insurer cannot observe this behavior or cannot effectively retaliate against it, for example by failing to renew the insurance.
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  • Signaling Michael Spence originally proposed the idea of signaling. He proposed that in a situation with information asymmetry, it is possible for people to signal their type, thus believably transferring information to the other party and resolving the asymmetry.
  • This idea was originally studied in the context of looking for a job. An employer is interested in hiring a new employee who is "skilled in learning." Of course, all prospective employees will claim to be "skilled at learning", but only they know if they really are. This is an information asymmetry. Skill in learning is malleable, and depends upon many factors, including diet, exercise and money. Spence proposes, for example, that going to college can function as a credible signal of an ability to learn. Assuming that people who are skilled in learning can finish college more easily than people who are unskilled, then by finishing college the skilled people signal their skill to prospective employers. No matter how much or how little they may have learned in college, finishing functions as a signal of their capacity for learning. However, finishing college may merely function as a signal of their ability to pay for college, it may signal the willingness of individuals to adhere to orthodox views, or it may signal a willingness to comply with authority.
  • Screening Joseph E. Stiglitz pioneered the theory of screening. In this way the underinformed party can induce the other party to reveal their information. They can provide a menu of choices in such a way that the choice depends on the private information of the other party. Examples of situations where the seller usually has better information than the buyer are numerous but include used-car salespeople, mortgage brokers and loan originators, stockbrokers and real estate agents.
  • Examples of situations where the buyer usually has better information than the seller include estate sales as specified in a last will and testament, life insurance, or sales of old art pieces without prior professional assessment of their value.
  • Because of information asymmetry, unscrupulous sellers can "spoof" items (like replica goods such as watches) and defraud the buyer. As a result, many people not willing to risk getting ripped off will avoid certain types of purchases, or will not spend as much for a given item. It is even possible for the market to decay to the point of nonexistence.
Innovation Blues

Skillshare - Browse Classes - 0 views

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    Learn anything from anyone. Share your skills and learn with other remarkable people in your community.
Innovation Blues

Memory News, Videos, Reviews and Gossip - Lifehacker - 0 views

  • Remember More Without Trying Too Hard
  • Memory is a tricky beast. You might sit and study for hours on end, but for some reason it never seems to stick with you. However, as Time points out, implicit learning relies on three factors that are easy to control.
  • You'll need to do three things when studying or learning a new skill: Give your mind a ton of material: This might seem obvious, but immersing yourself completely in what you're trying to learn is the first step to actually learning it. You don't have to actively try to memorize things, just expose yourself to the skill or material as much as possible. Practice: We tend to stop practicing a skill or stop studying when we think "we've got it." However, well after we learn something we still continue to refine that skill. Sleep: It's thought that sleep is essential to learning and remembering. Some studies have suggested that the brain identifies patterns in our memories and consolidates them to make them permanent when we're sleeping. In essence, a good night of rest might be better than an all-night study-fest.
Innovation Blues

Falling for Science - The MIT Press - 0 views

  • "This is a book about science, technology, and love," writes Sherry Turkle. In it, we learn how a love for science can start with a love for an object—a microscope, a modem, a mud pie, a pair of dice, a fishing rod. Objects fire imagination and set young people on a path to a career in science. In this collection, distinguished scientists, engineers, and designers as well as twenty-five years of MIT students describe how objects encountered in childhood became part of the fabric of their scientific selves. In two major essays that frame the collection, Turkle tells a story of inspiration and connection through objects that is often neglected in standard science education and in our preoccupation with the virtual.
Innovation Blues

HTwins.net - The Scale of the Universe - 0 views

  • Zoom from the edge of the universe to the quantum foam of spacetime and learn the scale of things along the way! Press left or right or drag the scroll bar to zoom in and out. Press down to toggle quality.
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    A very interactive tool to really allow one to identify with the size and the scale of the Universe, something everyone can struggle to grasp.
Innovation Blues

Free online speed reading software | Spreeder.com - 0 views

  • preeder.com is free online speed reading software designed to improve your reading speed and comprehension. Spreeder is a free service provided by 7-Speed-ReadingTM.
  • Speed reading is the art of silencing subvocalization. Most readers have an average reading speed of 200 wpm, which is about as fast as they can read a passage out loud. This is no coincidence. It is their inner voice that paces through the text that keeps them from achieving higher reading speeds. They can only read as fast as they can speak because that's the way they were taught to read, through reading systems like Hooked on Phonics.
  • However, it is entirely possible to read at a much greater speed, with much better reading comprehension, through silencing this inner voice. The solution is simple - absorb reading material faster than that inner voice can keep up. In the real world, this is achieved through methods like reading passages using a finger to point your way. You read through a page of text by following your finger line by line at a speed faster than you can normally read. This works because the eye is very good at tracking movement. Even if at this point full reading comprehension is lost, it's exactly this method of training that will allow you to read faster. With the aid of software like Spreeder, it's much easier to achieve this same result with much less effort. Load a passage of text (like this one), and the software will pace through the text at a predefined speed that you can adjust as your reading comprehension increases.
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  • To train to read faster, you must first find your base rate. Your base rate is the speed that you can read a passage of text with full comprehension. We've defaulted to 300 wpm, showing one word at a time, which is about the average that works best for our users. Now, read that passage using spreeder at that base rate.
  • After you've finished, double that speed by going to the Settings and changing the Words Per Minute value. Reread the passage. You shouldn't expect to understand everything - in fact, more likely than not you'll only catch a couple words here and there. If you have high comprehension, that probably means that you need to set your base rate higher and rerun this test again. You should be straining to keep up with the speed of the words flashing by. This speed should be faster than your inner voice can "read".
Innovation Blues

Comments on Economics: An ordinary Joe | The Economist - 0 views

  • Finally, countless Americans are, by world standards, vastly over-paid and have been found out. There is nothing a laborer in Manhattan can do that someone just as competent but living in El Salvador cannot do for perhaps one-fifth the price. It should be no surprise that 6% of the world's population can no longer enjoy 25% of the world's output -- there was no place to go but down.
  • Normally, the lack of a middle class would preclude a nation from being a world power, but the Anglo-American establishment was able to pay for American industrialization by borrowing British capital; from America’s inception until World War I, it was a debtor nation.
  • Unlike England, which prior to the welfare state of 1909, really did have a large middle class (roughly 40% of the population) America never did; for most of its history the middle class have never been more than 6% of Americans (probably less the 3% today). Middle Class values were the preserve of the WASP establishment, a small elite of German Jews, an even smaller elite of African-Americansand an assortment of assimilated white “ethnics”, but for the most part the American population was working class; focused on today, consuming all they produced.
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  • When Pat gets old he can retire comfortably and leave his widow comfortable as well, again was this because of savings, no; Pat got a company pension (inflation adjusted) and health care for the rest of his life with right of survivorship. All of this sounds great, but it wasn’t real; it was all a result of America ability to overcharge the world for capital goods; the costs of all these benefits were passed on to the rest of the world in higher priced capital good and dollar inflation. These programs allowed people to live middle class lives they never earned and could never keep (absent the programs). In fact, by 1970 it cost an American producer more in labor cost per ton of steel than what he could get for it on the world market. The fantasy world America has built post-World War 2 has been falling apart since the 1980s and the last leg, the dollars reserve currency status, is about to go. The disappearance of the American Dream is simply America reverting back to where its populations core values and behavior patterns would naturally take it.
  • The American Dream is rapidly fading because it was never real or at least never genuinely earned by Americans. When I speak of the “Middle Class”, I don’t simply mean possessing a middle class income, but rather having middle class patterns of behavior and world views. To be middle class is to be future time preference oriented; to accept short term pain for long term gain; to always be looking to get ahead and to plan ahead. Simply put, to be middle class is to consume less than what you produce, reinvesting the excess to produce more in the future.
  • America was the only large industrial power left standing after World War 2 and because it could charge the rest of the world what it wanted for capital goods, it could extract “rents” to support the fantasy of the American Dream. Consider the 1950s, the beginning of universal White middle-classdom and take a typical Irish guy; Pat. Pat grew up in an ethnic Irish slum like his father and grandfather, but he now can afford to buy a house; is it because he diligently saved his money and stayed focused, no; it is because he can get a VA loan or an FHA loan with no money down and easy payments. Pat dropped out of school at 16 and is not too interested in expanding his skills, is he on the streets, no; because of unions he can get an assembly line job. Moreover, because the NLR act effectively unionized every major industrial company and industry, Pat can look forward to annual raises (regardless of productivity) for his entire working life. When his children are old enough, Pat can afford to send them to college, is it because he saved before each child was born and spaced his children accordingly, no; they can get government loans , grants, and go to a subsides state college. When Pats parents get old they are not a burden, is it because they learned middleclass values and started to save, no; his parents rely on social security and Medicare (after 1965).
  • Europe is on the verge of a complete and total economic collapse...why?...because for decades their government has used force to take money from those who work hard and then give that money to those who don't work hard.
  • The capitalist equivalent of a socialist revolution is a Great Depression that wipes out the value of the paper assets the wealthy had accumulated, leaving the government to reallocate the real assets more equally. We almost had this happen in 2008, but the 1 percent blackmailed the rest with fear of collateral damage.
Innovation Blues

Science of morality - Wikipedia, the free encyclopedia - 0 views

  • Even the Buddhist ideal of having no desires, and hence no unsatisfied desires, is extremely difficult to achieve and maintain for a whole society – not least of all for younger people (who, Daleiden says, have less self control). Science of morality could never yield a utopia. Nevertheless, science of morality could greatly increase well-being for very many people.[54]
  • Daleiden's last factor in prosocial training, mental associations, is quite familiar: he says it has been traditionally understood as the conscience – where the student learns to feel empathy, and to feel regret for harming others. Unless an individual can, and begins to feel empathy, it may be unlikely that any amount of reasoning, or any coherent moral system will motivate them to behave very altruistically.
  • it should be the intention of adults to shape children, or presumably "indoctrinate" them, to think critically. He adds that the focus is on especially socially relevant values (e.g. kindness, sharing, reasoning) and not the more personal
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  • Religion, although it is not the best method of determining moral norms, has often been very effective at promoting them. Religions often satisfy many of Daleiden's criteria for raising people to be conditioned egoists, especially by practicing the aforementioned elements of prosocial training. He suggests that this is what they are doing when they instill a sense of virtue and justice, right and wrong.
  • Aldous Huxley's novel Brave New World and George Orwell's 1984 imagine dystopian future societies that control the populace by advanced scientific techniques. Harris argues that moral scientists approaching truths does not imply an "Orwellian future" with "scientists at every door". Instead, Harris imagines data about normative moral issues being shared in the same way as other sciences (e.g. peer-reviewed journals on medicine).
  • Science of morality should identify basic components required for human flourishing, drawing heavily on findings from positive psychology. In a proto-scientific example, Abraham Maslow suggested a hierarchy of needs: basic physical survival, then social and self esteem needs, and lastly philosophical and self-actualization.
  • self-
  • Research looking for optimal ethical systems can draw on all the methods of science, especially those used by positive psychology. While this might include obvious methods like asking people to self-report what they think they need to flourish in life – psychology has shown that people are often surprisingly incorrect on these matters (particularly when it comes to making predictions and recollections). Some cases in point: having too many varieties of consumer goods actually creates consumer choice anxiety; when it comes to removing bandages, Dan Ariely's research suggests that "getting it over with as quickly as possible" may cause more negative memories than if one went slowly (with breaks) while being careful never to reach a 'peak' in pain; stress is not always harmful (such stress is called eustress). While very careful use of self-report can still be illuminating (e.g. bogus pipeline techniques), in the end, unconscious methods of inquiry seem to be more promising. Some unconscious methods of data collection include the Implicit Association Test and neuroimaging. In these ways, science can further our understanding of what humans need to flourish, and what ways of organizing society provide the greatest hope for flourishing.
  • Extensive study of cooperation has shed some light on the objective (and subjective) advantages of teamwork and empathy. The brain areas that are consistently involved when humans reason about moral issues have been investigated by a quantitative large-scale meta-analysis of the brain activity changes reported in the moral neuroscience literature.[76] In fact, the neural network underlying moral decisions overlapped with the network pertaining to representing others' intentions (i.e., theory of mind) and the network pertaining to representing others' (vicariously experienced) emotional states (i.e., empathy).
  • There is evidence to suggest that a risk factor for becoming victims of bullying is deficient moral development. Examples of deficient moral development may be something like neglecting an agent's intentions during an action, or blaming them for accidents. In other words, victims of bullying may be more likely to make less accurate moral assessments, for some reason. The researchers also found that, in contrast, bullies were just as morally developed as victim defenders. The difference is that bullies are more able to disengage themselves. That is, for whatever reason, bullies end up suppressing their feelings of compassion and conscience.[77]
Innovation Blues

How to Memorize - Learn to memorize and increase memory | Productivity501 - 0 views

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    Practice Recall, Not Repeating to Memorize Large Blocks of Text
Innovation Blues

Upgrade Your Memory: How to Quickly Memorize Lists - 0 views

  • You can improve your memory by learning memory techniques that are thousands of years old. That's what Nelson Dellis did to train for the USA Memory Championship, and you might know that Nelson has won the top prize for two years running. We have teamed up with Nelson to create this "Upgrade Your Memory" video that teaches memorization techniques that can enhance your business and personal life. Since we all have the same "hardware," it's really an upgrade of our "software," or brain, that makes all the difference.
  • years running. We have teamed up with Nelson to create this "Upgrade Your Memory" video that teaches memorization techniques that can enhance your business and personal life. Since we all have the same "hardware," it's really an upgrade of our "software," or brain, that makes all the difference. Fusion-io talked to Nelson to discuss the value of memory in our lives. Check out our interview with Nelson on the Fusion Blog: www.fusionio.com/blog/Follow us on Twitter: http://www.twitter.com/fusionioOr Like us on Facebook: http://www.facebook.com/#!/fusionio Category: Science & Technology Tags: Nelson Dellis upgrade your memory mental athlete USA Memory Competition USA Memory Championship USA Memory champion list memorization memorizing lists memory techniques Alzheimer's Climb for Memory Fusion-io fusionio fusion i/o Fusion IO @fusionio Licence: Standard YouTube Licence 261 likes, 3 dislikes Show more Show fewer Link to this comment: Share to:
Innovation Blues

Minnesota Studies in Philosophy of Science : Minnesota Center for Philosophy of Science... - 0 views

  • Minnesota Studies in Philosophy of Science is the world's longest running and best known series devoted exclusively to the philosophy of science. Edited by members of the Minnesota Center for the Philosophy of Science (MCPS) since 1956, the series brings together original articles by leading workers in the philosophy of science. The ninteen existing volumes cover topics ranging from the philosophy of psychology and the structure of space and time to the nature of scientific theories and scientific explanation. Minnesota volumes typically grow out of intensive workshops focused on specific topics. The participants are invited to contribute because they represent the leading viewpoints of the time. The volumes thus have a coherent focus enhanced by the authors' considerable face to face interaction before their papers are revised for publication.
Innovation Blues

The Philosophers' Magazine - 0 views

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    The Philosophers' Magazine (tpm) is an independent quarterly, devoted to presenting top-class philosophy in an accessible and entertaining format.The magazine is mainly written by professional philosophers but it is not technical and it attracts a broad international audience. It regularly includes interviews with leading philosophersThe magazine also includes news, essays, reviews, features and regular columnists. 
Innovation Blues

Khan Academy - 0 views

  • With over 3,300 videos on everything from arithmetic to physics, finance, and history and hundreds of skills to practice, we're on a mission to help you learn what you want, when you want, at your own pace.
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