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carolinewren

Media Bias - 0 views

  • Since citizens cannot cast informed votes or make knowledgeable decisions on matters of public policy if the information on which they depend is distorted, it is vital to American democracy that television news and other media be fair and unbiased.
  • the majority of Americans believe that the mass media slant reports in favor of the liberal position on current issues.
  • A reporter’s job is to present a balanced story.
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  • bias by omission can occur either within a story, or over the long term as a particular news outlet reports one set of events, but not another
  • Experts in news stories are like expert witnesses in trials.
  • Journalists often go looking for quotes to fit their favorite argument into a news story
  •   If charges of impropriety are leveled at two politicians of approximately equal power, one liberal and one conservative, compare the amount of coverage given to each.
  • Story placement is a measure of how important the editor considers the story. 
  • Bias by placement is where on a website (or newspaper) or in an article a story or event is printed; a pattern of placing news stories so as to downplay information supportive of either conservative views or liberal views
  • tagging of conservative politicians and groups with extreme labels while leaving liberal politicians and groups unlabeled or with more mild labels, or vice versa.
  • bias by labeling occurs when a reporter not only fails to identify a liberal as a liberal or a conservative as a conservative, but describes the person or group with positive labels, such as “an expert” or “independent consumer group.”
  • the reporter imparts an air of authority that the source does not deserve.
  • Bias by spin occurs when the story has only one interpretation of an event or policy, to the exclusion of the other; spin involves tone – it’s a reporter’s subjective comments about objective facts; makes one side’s ideological perspective look better than another.
grayton downing

Ancient Georgian Ancestors | The Scientist Magazine® - 0 views

  • unearthed the first ever completely preserved skull of an adult hominin from the Paleolithic era—spanning approximately 2.6 million to 10,000 years ago.
  • l is clearly the cherry on the cake, however, because it is “spectacularly complete,” said White. “It’s an amazing skull,” added Robert Foley, a professor of human evolution at the University of Cambridge, who also was not involved in the work. “Just a fantastic specimen.”
  • Its matching cranium was discovered five years later. It was easy to tell the parts were from the same individual, however, because “the teeth match with each other,”
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  • features of the skull, it is thought to have been a male with large cheek bones, teeth, and jaws, but a small brain
  • newly described skull also expands the morphological variability of the specimens found at the Dmanisi site—some of which appear less primitive. Despite this variability, Zollikofer believes all the specimens are members of the same species. That would be “the most parsimonious explanation,”
  • He suggested that other hominin fossils previously classified as separate species—such as H. habilis, H. rudolfensis, and H. erectus—should be re-examined.
  • urge for a change in perspective, because what has happened in the last ten years is that people tried to divide—they tried to show species diversity—and what we try to show now is diversity, but within one single evolving species,” Zollikofer said.
Javier E

Free exchange: Joy to the world | The Economist - 0 views

  • WHAT is the point of economics? It often seems that the objective is to make the world richer.
  • Yet this is the season when, for devout Christians at least, the ineffable supplants the material (and the other way around for most folk). That makes it a good time to ponder whether maximising income should really be the be-all and end-all of economic policy.
  • people in the ten richest countries in the world have a life expectancy 25 years higher than people in the ten poorest. People with more cash can afford better education, more varied leisure activities and healthier food, all of which improve the quality of life.
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  • A survey of 43 countries, published on October 30th, found that people in emerging markets are within a whisker of expressing the same level of satisfaction with their lives as people in rich countries.
  • While Scrooge found it easy to count his riches, happiness is harder to pin down. People are prone to what philosophers call “adaptive preferences”, meaning that they may fail to report their “true” happiness
  • If measuring happiness is so difficult, what else could economists look at? Amartya Sen, of Harvard University, argues that “capabilities” are the way to go. The definition of a capability is a bit fuzzy: at its simplest, a capability is something that people have reason to value. The list of potential capabilities is endless: the opportunity to live a long and healthy life, the freedom to take part in political life or to be well nourished.
  • Capabilities, says Mr Sen, are ends that economists should strive to maximise: income is just one of the many means by which we get there.
  • That begs the question of which capabilities a society should maximise. Some worry that the capability approach is deeply paternalistic
  • Ms Nussbaum goes so far as to recommend “ten central capabilities” that are essential for a good life. For economists, who tend to be lovers of freedom, this is controversial stuff.
  • But the capability approach may be less illiberal than it seems. Insisting that GDP is the true measure of economic progress is itself a value-judgment. What is more, according to Mr Sen and Ms Nussbaum, people must have the freedom to select which capabilities they ultimately pursue.
  • Measuring capabilities may be even more difficult than measuring GDP or happiness. There are, though, decent proxies. A country with a high life expectancy probably offers its citizens things like good health care and helps to shield them from pollution, which makes it easier for them to live a long, healthy life.
  • Some measures of economic success use such data. The Human Development Index (HDI), which Mr Sen helped to devise in 1990, considers not only income, but also life expectancy and schooling, as elements of development
  • the capability approach has spawned so many measures, each more complicated than the last, that GDP starts to look appealing again. What other single number can give a decent approximation of quality of life?
Javier E

On Pi Day, Celebrate Math's Enigmas - NYTimes.com - 0 views

  • a better way to commemorate the day is by trying to grasp what pi truly is, and why it remains so significant.
  • Pi is irrational, meaning it cannot be expressed as the ratio of two whole numbers. There is no way to write it down exactly: Its decimals continue endlessly without ever settling into a repeating pattern
  • pi, being the ratio of a circle’s circumference to its diameter, is manifested all around us. For instance, the meandering length of a gently sloping river between source and mouth approaches, on average, pi times its straight-line distance. Pi reminds us that the universe is what it is, that it doesn’t subscribe to our ideas of mathematical convenience.
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  • pi’s infinite randomness can also be seen more as richness. What amazes, then, is the possibility that such profusion can come from a rule so simple: circumference divided by diameter. This is characteristic of mathematics, whereby elementary formulas can give rise to surprisingly varied phenomena. For instance, the humble quadratic can be used to model everything from the growth of bacterial populations to the manifestation of chaos. Pi makes us wonder if our universe’s complexity emerges from similarly simple mathematical building blocks.
  • Pi also opens a window into a more uncharted universe, the one consisting of transcendental numbers, which exclude such common irrationals as square and cube roots. Pi is one of the few transcendentals we ever encounter. One may suspect that such numbers would be quite rare, but actually, the opposite is true. Out of the totality of numbers, almost all are transcendental. Pi reveals how limited human knowledge is, how there exist teeming realms we might never explore.
  • But pi, on cue, reminds us that it is an abstraction, like all else in mathematics. The perfect flat circle is impossible to realize in practice. An area calculated using pi will never exactly match the same area measured physically. This is to be expected whenever we approximate reality using the idealizations of math.
Javier E

A New Report Argues Inequality Is Causing Slower Growth. Here's Why It Matters. - NYTimes.com - 0 views

  • Is income inequality holding back the United States economy? A new report argues that it is, that an unequal distribution in incomes is making it harder for the nation to recover from the recession
  • The fact that S.&P., an apolitical organization that aims to produce reliable research for bond investors and others, is raising alarms about the risks that emerge from income inequality is a small but important sign of how a debate that has been largely confined to the academic world and left-of-center political circles is becoming more mainstream.
  • “Our review of the data, as well as a wealth of research on this matter, leads us to conclude that the current level of income inequality in the U.S. is dampening G.D.P. growth,” the S.&P. researchers write
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  • To understand why this matters, you have to know a little bit about the many tribes within the world of economics.
  • There are the academic economists who study the forces shaping the modern economy. Their work is rigorous but often obscure. Some of them end up in important policy jobs (See: Bernanke, B.) or write books for a mass audience (Piketty, T.), but many labor in the halls of academia for decades writing carefully vetted articles for academic journals that are rigorous as can be but are read by, to a first approximation, no one.
  • Then there are the economists in what can broadly be called the business forecasting community. They wear nicer suits than the academics, and are better at offering a glib, confident analysis of the latest jobs numbers delivered on CNBC or in front of a room full of executives who are their clients. They work for ratings firms like S.&P., forecasting firms like Macroeconomic Advisers and the economics research departments of all the big banks.
  • they are trying to do the practical work of explaining to clients — companies trying to forecast future demand, investors trying to allocate assets — how the economy is likely to evolve. They’re not really driven by ideology, or by models that are rigorous enough in their theoretical underpinnings to pass academic peer review. Rather, their success or failure hinges on whether they’re successful at giving those clients an accurate picture of where the economy is heading.
  • worries that income inequality is a factor behind subpar economic growth over the last five years (and really the last 15 years) is going from an idiosyncratic argument made mainly by left-of center economists to something that even the tribe of business forecasters needs to wrestle with.
  • Because the affluent tend to save more of what they earn rather than spend it, as more and more of the nation’s income goes to people at the top income brackets, there isn’t enough demand for goods and services to maintain strong growth, and attempts to bridge that gap with debt feed a boom-bust cycle of crises, the report argues. High inequality can feed on itself, as the wealthy use their resources to influence the political system toward policies that help maintain that advantage, like low tax rates on high incomes and low estate taxes, and underinvestment in education and infrastructur
  • The report itself does not break any major new analytical or empirical ground. It spends many pages summarizing the findings of various academic and government economists who have studied inequality and its discontents, and stops short of recommending any radical policy changes
Javier E

Why We Can't Talk About Gun Control - James Hamblin - The Atlantic - 0 views

  • The Second Amendment says the right of the people to keep and bear arms shall not be infringed, Metcalf noted, "not that it shall not be regulated." Rather the first four words of the amendment, "a well regulated militia," not only allow but mandate regulation.
  • We have over 75,000 firearms rules and regulations on the books, and approximately three of them are ever enforced," Metcalf explained, to some nervous laughter in the audience.
  • Homogenous media communities with very different understandings of reality, where challenging prevailing assumptions is out of bounds, may be growing in popularity. "People are looking to media now to be a cheerleader for their point of view," Brownstein said. "There's less interest in dialogue over competing points of view than there is for affirmation of [the reader's] own point of view."
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  • "I can't tell you how many senior executives at firearms companies, over a beer when no one's watching, will say, 'You do know we realize that, of course, at least a third of our customers shouldn't be let within five miles of a gun."
  • To what extent is the gun debate actually about guns? Brownstein asked, citing that only 28 percent of people in urban areas live in a home with a gun, but 59 percent in rural areas do. White people are twice as likely as black people to live in a home with a gun. Evangelical Christians are much more likely to own guns than are secular people.
  • "We know that gun ownership tracks a lot of other cultural divides that shape the partisan and ideological standoff in America," Brownstein said. "Is all the passion about guns a broader statement about who defines what America values?"
Sophia C

When Nature Looks Unnatural - NYTimes.com - 1 views

  • Nature is not always so kind, however. Fields like particle physics and cosmology sometimes include good theories that fit all the data but nevertheless seem unsatisfying to us.
  • Faced with theories that fit all the data but seem unnatural, one can certainly shrug and say, “Maybe that’s just the way it is.” But most physicists take the attitude that almost none of our current models are exactly correct; our best ideas are still approximations to the underlying reality. In that case, apparent fine-tunings can be taken as potential clues that might prod us into building better theories.
  • Rather than predicting definite outcomes, we attach probabilities to members of an ensemble of many different experimental outcomes.
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  • So even if inflation itself seems unlikely, multiplying by the infinite number of universes it creates makes it quite plausible that we find ourselves in a post-inflationary situation.
  • ather than explaining why we live precisely in this kind of universe, eternal inflation admits there are many kinds of local universes, and expresses the hope that ones like ours are more likely than other kinds.
  • aturalness is a subtle criterion. In the case of inflationary cosmology, the drive to find a natural theory seems to have paid off handsomely, but perhaps other seemingly unnatural features of our world must simply be accepted. Ultimately it’s nature, not us, that decides what’s natural.
demetriar

Languages Are Going Extinct Even Faster Than Species Are - 0 views

  • The world's roughly 7000 known languages are disappearing faster than species, with a different tongue dying approximately every 2 weeks.
  • researchers have identified the primary threat to linguistic diversity: economic development.
  • It’s well known that economic growth or the desire to achieve it can drive language loss, he notes—dominant languages such as Mandarin Chinese and English are often required for upward mobility in education and business, and economic assistance often encourages recipients to speak dominant languages.
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  • Certain aspects of geography seemed to act as a buffer or threat, Amano says.
  • More research is necessary to determine precisely what it is about economic development that kills languages, he adds. Figuring out how growth interacts with other factors such as landscape is the next step, he says.
  • Economics is far from the whole story, however, she says.
  • Generations of disease, murder, and genocide—both historic and present, in some regions—have also played an important role and were not included in the new study's analysis, she says.
Javier E

From Sports Illustrated, the Latest Body Part for Women to Fix - NYTimes.com - 0 views

  • At 44, I am old enough to remember when reconstruction was something you read about in history class, when a muffin top was something delicious you ate at the bakery, a six-pack was how you bought your beer, camel toe was something one might glimpse at the zoo, a Brazilian was someone from the largest country in South America and terms like thigh gap and bikini bridge would be met with blank looks.
  • Now, each year brings a new term for an unruly bit of body that women are expected to subdue through diet and exercise.
  • Girls’ and women’s lives matter. Their safety and health and their rights matter. Whether every inch of them looks like a magazine cover?That, my sisters, does not matter at all.
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  • there’s no profit in leaving things as they are.Show me a body part, I’ll show you someone who’s making money by telling women that theirs looks wrong and they need to fix it. Tone it, work it out, tan it, bleach it, tattoo it, lipo it, remove all the hair, lose every bit of jiggle.
  • As a graphic designer and Photoshop teacher, I also have to note that Photoshop is used HEAVILY in these kinds of publications. Even on women with incredibly beautiful (by pop culture standards) bodies. It's quite sad because the imagery we're expected to live up to (or approximate) by cultural standards, is illustration. It's not even real. My boyfriend and I had a big laugh over a Playboy cover a few months ago where the Photoshopping was so extreme (thigh gap and butt cheek) it was anatomically impossible and looked ridiculous. I work in the industry.. I know what the Liquify filter and the Spot Healing Brush can do!
  • We may harp on gender inequality while pursuing stupid fetishes. Well into our middle age, we still try to forcefully wriggle into size 2 pair of jeans. We foolishly spend tonnes of money on fake ( these guys should be sued for false advertising )age -defying, anti-wrinkle creams. Why do we have to have our fuzz and bush diappear while the men have forests on their chests,abdomens,butts, arms and legs? For that we have only ourselves to blame. We just cannot get out of this mindset of being objectified. And we pass on these foolishness to our daughters and grand-daughters. They get trapped, never satisfied with what they see in the mirror. Don't expect the men to change anytime soon. They will always maintain the status quo. It is for us, women to get out of this rut. We have to 'snatch' gender-equality. It will never be handed to us. PERIOD
  • I spent years dieting and exercising to look good--or really to not look bad. I knew the calories (and probably still do) in thousands of foods. How I regret the time I spent on that and the boyfriends who cared about that. And how much more I had to give to the world. With unprecedented economic injustice, ecosystems collapsing, war breaking out everywhere, nations going under water, people starving in refugee camps, the keys to life, behavior, and disease being unlocked in the biological sciences . . . this is what we think women should spend their time worrying about? Talk about a poverty of ambition. No more. Won't even look at these demeaning magazines when I get my hair cut. If that's what a woman cares about, I try to tell her to stop wasting her time. If that's what a man cares about, he is a waste of my time. What a depressing way to distract women from achieving more in this world. Really wish I'd know this at 12.
  • we believe we're all competing against one another to procreate and participate in evolution. So women (and men) compete ferociously, and body image is a subset of all that. Then there's LeMarckian evolutionary theory and epigenetics...http://en.wikipedia.org/wiki/Lamarckismhttp://en.wikipedia.org/wiki/EpigeneticsBottom line is that we can't stop this train any more easily than we can stop the anthropocene's Climate Change. Human beings are tempted. Sometimes we win the battle, other times we give in to vanity, hedonism, and ego. This is all a subset of much larger forces at play. Men and women make choices and act within that environment. Deal with it.
Javier E

Opinion | Is There Such a Thing as an Authoritarian Voter? - The New York Times - 0 views

  • Jonathan Weiler, a political scientist at the University of North Carolina at Chapel Hill, has spent much of his career studying the appeal of authoritarian figures: politicians who preach xenophobia, beat up on the press and place themselves above the law while extolling “law and order” for everyone else.
  • He is one of many scholars who believe that deep-seated psychological traits help explain voters’ attraction to such leaders. “These days,” he told me, “audiences are more receptive to the idea” than they used to be.
  • “In 2018, the sense of fear and panic — the disorientation about how people who are not like us could see the world the way they do — it’s so elemental,” Mr. Weiler said. “People understand how deeply divided we are, and they are looking for explanations that match the depth of that division.”
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  • Moreover, using the child-rearing questionnaire, African-Americans score as far more authoritarian than whites
  • what, exactly, is an “authoritarian” personality? How do you measure it?
  • for more than half a century — social scientists have tried to figure out why some seemingly mild-mannered people gravitate toward a strongman
  • the philosopher (and German refugee) Theodor Adorno collaborated with social scientists at the University of California at Berkeley to investigate why ordinary people supported fascist, anti-Semitic ideology during the war. They used a questionnaire called the F-scale (F is for fascism) and follow-up interviews to analyze the “total personality” of the “potentially antidemocratic individual.”
  • The resulting 1,000-page tome, “The Authoritarian Personality,” published in 1950, found that subjects who scored high on the F-scale disdained the weak and marginalized. They fixated on sexual deviance, embraced conspiracy theories and aligned themselves with domineering leaders “to serve powerful interests and so participate in their power,”
  • “Globalized free trade has shafted American workers and left us looking for a strong male leader, a ‘real man,’” he wrote. “Trump offers exactly what my maladapted unconscious most craves.”
  • one of the F-scale’s prompts: “Obedience and respect for authority are the most important virtues children should learn.” Today’s researchers often diagnose latent authoritarians through a set of questions about preferred traits in children: Would you rather your child be independent or have respect for elders? Have curiosity or good manners? Be self-reliant or obedient? Be well behaved or considerate?
  • a glance at the Christian group Focus on the Family’s “biblical principles for spanking” reminds us that your approach to child rearing is not pre-political; it is shorthand for your stance in the culture wars.
  • “All the social sciences are brought to bear to try to explain all the evil that persists in the world, even though the liberal Enlightenment worldview says that we should be able to perfect things,” said Mr. Strouse, the Trump voter
  • what should have been obvious:
  • “Trump’s electoral strength — and his staying power — have been buoyed, above all, by Americans with authoritarian inclinations,” wrote Matthew MacWilliams, a political consultant who surveyed voters during the 2016 election
  • The child-trait test, then, is a tool to identify white people who are anxious about their decline in status and power.
  • new book, “Prius or Pickup?,” by ditching the charged term “authoritarian.” Instead, they divide people into three temperamental camps: fixed (people who are wary of change and “set in their ways”), fluid (those who are more open to new experiences and people) and mixed (those who are ambivalent).
  • “The term ‘authoritarian’ connotes a fringe perspective, and the perspective we’re describing is far from fringe,” Mr. Weiler said. “It’s central to American public opinion, especially on cultural issues like immigration and race.”
  • Other scholars apply a typology based on the “Big Five” personality traits identified by psychologists in the mid-20th century: extroversion, agreeableness, conscientiousness, neuroticism and openness to experience. (It seems that liberals are open but possibly neurotic, while conservatives are more conscientious.)
  • Historical context matters — it shapes who we are and how we debate politics. “Reason moves slowly,” William English, a political economist at Georgetown, told me. “It’s constituted sociologically, by deep community attachments, things that change over generations.”
  • “it is a deep-seated aspiration of many social scientists — sometimes conscious and sometimes unconscious — to get past wishy-washy culture and belief. Discourses that can’t be scientifically reduced are problematic” for researchers who want to provide “a universal account of behavior.”
  • in our current environment, where polarization is so unyielding, the apparent clarity of psychological and biological explanations becomes seductive
  • Attitudes toward parenting vary across cultures, and for centuries African-Americans have seen the consequences of a social and political hierarchy arrayed against them, so they can hardly be expected to favor it — no matter what they think about child rearing
  • — we know that’s not going to happen. People have wicked tendencies.”
  • as the social scientific portrait of humanity grows more psychological and irrational, it comes closer and closer to approximating the old Adam of traditional Christianity: a fallen, depraved creature, unable to see himself clearly except with the aid of a higher power
  • The conclusions of political scientists should inspire humility rather than hubris. In the end, they have confirmed what so many observers of our species have long suspected: None of us are particularly free or rational creatures.
  • Allen Strouse is not the archetypal Trump voter whom journalists discover in Rust Belt diners. He is a queer Catholic poet and scholar of medieval literature who teaches at the New School in New York City. He voted for Mr. Trump “as a protest against the Democrats’ failures on economic issues,” but the psychological dimensions of his vote intrigue him. “Having studied Freudian analysis, and being in therapy for 10 years, I couldn’t not reflexively ask myself, ‘How does this decision have to do with my psychology?’” he told me.
  • their preoccupation with childhood and “primitive and irrational wishes and fears” have influenced the study of authoritarianism ever since.
Javier E

Aziz Ansari Is Guilty. Of Not Being a Mind Reader. - The New York Times - 1 views

  • It is worth carefully studying this story. Encoded in it are new yet deeply retrograde ideas about what constitutes consent — and what constitutes sexual violence.
  • We are told by the reporter that the woman “says she used verbal and nonverbal cues to indicate how uncomfortable and distressed she was.” She adds that “whether Ansari didn’t notice Grace’s reticence or knowingly ignored it is impossible for her to say.” We are told that “he wouldn’t let her move away from him,” in the encounter.
  • I am a proud feminist, and this is what I thought while reading the article:If you are hanging out naked with a man, it’s safe to assume he is going to try to have sex with you.
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  • If the failure to choose a pinot noir over a pinot grigio offends you, you can leave right then and there.
  • If you don’t like the way your date hustles through paying the check, you can say, “I’ve had a lovely evening and I’m going home now.”If you go home with him and discover he’s a terrible kisser, say, “I’m out.”
  • If you start to hook up and don’t like the way he smells or the way he talks (or doesn’t talk), end it.
  • If he pressures you to do something you don’t want to do, use a four-letter word, stand up on your two legs and walk out his door.
  • the solution to these problems does not begin with women torching men for failing to understand their “nonverbal cues.” It is for women to be more verbal. It’s to say, “This is what turns me on.” It’s to say, “I don’t want to do that.” And, yes, sometimes it means saying goodbye.
  • The single most distressing thing to me about this story is that the only person with any agency in the story seems to be Aziz Ansari. The woman is merely acted upon.
  • The article in Babe was met with digital hosannas by young feminists who insisted that consent is consent only if it is affirmative, active, continuous and — and this is the word most used — enthusiastic.
  • Consent isn’t the only thing they are radically redefining. A recent survey by The Economist/YouGov found that approximately 25 percent of millennial-age American men think asking someone for a drink is harassment. More than a third of millennial men and women say that if a man compliments a woman’s looks it is harassment.
proudsa

How Long Can a Woman Wait to Have an Abortion in America? - The Atlantic - 1 views

  • Approximately 9,090 women in the United States had abortions after their 21st week of pregnancy in 2012
  • xceptions for medical emergencies or fetal anomalies
  • states like South Carolina, it can be difficult or even impossible to find an abortion provider who will perform the procedure at that stage.
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  • here’s a kind of national mean on abortion limits in the United States—a significant majority states, from the most conservative to the most liberal
  • Most of the newer limits on gestational age have to do with fetal pain—legislators claim they’re prohibiting the abortion of fetuses that can feel physical distress.
Javier E

Yes, Economics Is a Science - The New York Times - 0 views

  • if you ask three economists a question, you’ll get three different answers.
  • What kind of science, people wondered, bestows its most distinguished honor on scholars with opposing ideas?
  • the Nobel Memorial Prize in Economic Science was awarded to three economists, two of whom, Robert J. Shiller of Yale and Eugene F. Fama of the University of Chicago, might be seen as having conflicting views about the workings of financial markets. At first blush, Mr. Shiller’s thinking about the role of “irrational exuberance” in stock markets and housing markets appears to contradict Mr. Fama’s work showing that such markets efficiently incorporate news into prices.
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  • But the headline-grabbing differences between the findings of these Nobel laureates are less significant than the profound agreement in their scientific approach to economic questions, which is characterized by formulating and testing precise hypotheses
  • I’m troubled by the sense among skeptics that disagreements about the answers to certain questions suggest that economics is a confused discipline, a fake science whose findings cannot be a useful basis for making policy decisions.
  • It is true that the answers to many “big picture” macroeconomic questions — like the causes of recessions or the determinants of growth — remain elusive.
  • As is the case with epidemiologists, the fundamental challenge faced by economists — and a root cause of many disagreements in the field — is our limited ability to run experiments
  • economists have recently begun to overcome these challenges by developing tools that approximate scientific experiments to obtain compelling answer
  • Other economic studies have taken advantage of the constraints inherent in a particular policy to obtain scientific evidence
  • Even when such experiments are unfeasible, there are ways to use “big data” to help answer policy questions
Keiko E

"Why Rich Parents Don't Matter" from The Wall Street Journal - 2 views

  • Most parents believe that even the most mundane acts of parenting—from their choice of day care to their policy on videogames—can profoundly influence the success of their children. Kids are like wet clay, in this view, and we are the sculptors.
  • Yet in tests measuring many traits, from intelligence to self-control, the power of the home environment pales in comparison to the power of genes and peer groups. We may think we're sculptors, but the clay is mostly set.
  • But results for the 2-year-olds were dramatically different. In children from poorer households, the choices of parents still mattered. In fact, the researchers estimated that the home environment accounted for approximately 80% of the individual variance in mental ability among poor 2-year-olds. The effect of genetics was negligible. The opposite pattern appeared in 2-year-olds from wealthy households. For these kids, genetics primarily determined performance, accounting for nearly 50% of all variation in mental ability. (The scientists made this conclusion based on the fact that identical twins performed much more similarly than fraternal twins.) The home environment was a distant second
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  • These results capture the stunning developmental inequalities that set in almost immediately, so that even the mental ability of 2-year-olds can be profoundly affected by the socio-economic status of their parents. As a result, their genetic potential is held back.
  • Such statistics have led many researchers to highlight the importance of improving the early-childhood environments of poor children.
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    Article from The Wall Street Journal
sissij

Researchers Analyze 1,280 Suicide Notes to Devise a Better Prevention Strategy | Big Think - 1 views

  • That’s why the results of a 2015 report were so shocking. For the first time in generations, middle-aged white people saw their death rate increase.
  • Approximately 40,000 people take their own lives each year in the US.
  • They wanted to obtain a holistic view using psychology, history, and the social sciences to tackle suicide.
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  • Last words such as these are only found in 14% of cases. The authors began to notice differences between note leavers and non-leavers in their research, as well as people who attempt suicide and those who complete the act.
  • Many notes were addressed to one person. Others were to no one in particular.
  • Nowadays, being a white male is the single biggest risk factor. Why is that? According to Case and Deaton, drastic changes in the labor market is the most significant factor.
  • “Hegemonic masculinity,” or a perception that heightened masculinity must be portrayed at all times, a goal that no male can live up to.
  • Another 23% of note writers ended it all due to unrequited love or love lost. 22% said they themselves created the problem which led to their decision.
  • Meyer and colleagues also propose a national prevention plan, to foster a sense of community and social support.
  • If you feel suicidal, or are concerned for a friend, don't wait: talk to someone, or learn about suicide prevention here.
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    Suicide is a very interesting and big subject in studies of human social activities. From the point of view of evolution, it is a very inefficient act as one kills oneself. This action should be banned from our genes. Gender pressure, as stated in the reading, is probably a factor of suicide. Since the society expect too much on male and some of them are not able to fulfill the expectation, they choose to suicide. It also reminds me of a movie I watched when I was little and left a big impression, called The Happening. In that movie, the plants would release a certain hormone and lead people to suicide one by one. So is it possible that hormone can be a factor of making the decision to suicide? --Sissi (4/6/2017)
Javier E

An Algorithm Isn't Always the Answer - The New York Times - 1 views

  • in just about every aspect of my life I seek order and safety.
  • Picture me on Tinder circa 2014.
  • Here are my search criteria: I’m looking for men in my area (no farther than three miles away, because traveling is such a hassle and I take too many cabs as it is) who are anywhere from two years younger than me up to 10 years older (going on the assumption that women mature more quickly than men). And for goodness’ sake, my friends would tell me, find a man who isn’t a writer — they’re way too emotionally unstable. Certainly if I could check most of those items off the checklist, I’d find love or some good enough approximation of it. Advertisement Continue reading the main story
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  • How did it go? I was absolutely miserable dating appropriate-age marketing associates who lived near me. I always wanted to be at home reading instead
  • Then one night I held a reading with some authors I admire at a bookstore, and I threw an after-party at my favorite dive bar. In walked a friend of a friend who I sort of knew from the internet but who I’d never met in real life. He is six years younger than I am (way too young for me) and he lived in Harlem (that’s a $40 cab fare from my home in Brooklyn) and he’s a writer/comedian (warning flags coming at me from every direction). But we talked and he charmed me. He was online dating, too, but I never would’ve found him on an app. He wasn’t on my metaphorical vision board, but he fit into my real life in ways I never could’ve imagined. He’s my husband now. (He likes David Foster Wallace.)
  • The internet is supposed to make it easier for us to find people and places and perfect gifts, and more profitable for companies that offer those services. And yet here I am, with my too-old dog and my too-young husband and my ever-growing book collection, happier than I could have predicted.
  • It’s risky not to have data, to be without numbers you can plug in when you’re looking for something or someone to love. We think we know exactly what we want. But I hope that our guts remain true to our hearts, and in this world measured by clicks and stars and highest customer reviews, we remember that some rules are made to be broken in the most delightful of ways.
Javier E

The advantage of ambiguity | MIT News - 1 views

  • Why did language evolve? While the answer might seem obvious — as a way for individuals to exchange information — linguists and other students of communication have debated this question for years. Many prominent linguists, including MIT’s Noam Chomsky, have argued that language is, in fact, poorly designed for communication. Such a use, they say, is merely a byproduct of a system that probably evolved for other reasons — perhaps for structuring our own private thoughts.
  • In a new theory, they claim that ambiguity actually makes language more efficient, by allowing for the reuse of short, efficient sounds that listeners can easily disambiguate with the help of context.
  • “Various people have said that ambiguity is a problem for communication,” says Ted Gibson, an MIT professor of cognitive science and senior author of a paper describing the research to appear in the journal Cognition. "But the fact that context disambiguates has important ramifications for the re-use of potentially ambiguous forms. Ambiguity is no longer a problem — it's something that you can take advantage of, because you can reuse easy [words] in different contexts over and over again."
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  • virtually no speaker of English gets confused when he or she hears the word “mean.” That’s because the different senses of the word occur in such different contexts as to allow listeners to infer its meaning nearly automatically.
  • To understand why ambiguity makes a language more efficient rather than less so, think about the competing desires of the speaker and the listener. The speaker is interested in conveying as much as possible with the fewest possible words, while the listener is aiming to get a complete and specific understanding of what the speaker is trying to say.
  • it is “cognitively cheaper” to have the listener infer certain things from the context than to have the speaker spend time on longer and more complicated utterances. The result is a system that skews toward ambiguity, reusing the “easiest” words. Once context is considered, it’s clear that “ambiguity is actually something you would want in the communication system,” Piantadosi says.
  • “You would expect that since languages are constantly changing, they would evolve to get rid of ambiguity,” Wasow says. “But if you look at natural languages, they are massively ambiguous: Words have multiple meanings, there are multiple ways to parse strings of words. … This paper presents a really rigorous argument as to why that kind of ambiguity is actually functional for communicative purposes, rather than dysfunctional.”
  • “Ambiguity is only good for us [as humans] because we have these really sophisticated cognitive mechanisms for disambiguating,” he says. “It’s really difficult to work out the details of what those are, or even some sort of approximation that you could get a computer to use.”
caelengrubb

Student loan debt: Here are 7 ways the $1.6 trillion toll affects the U.S. economy - The Washington Post - 0 views

  • American families are carrying about $1.6 trillion in student loan debt, a massive burden that amounts to nearly 8 percent of national income. That share has roughly doubled since the mid-2000s.
  • Years of research show that such post-college debt compels people to put off marriage and home ownership. It also stifles entrepreneurship and career paths.
  • Student loan debt is taking a bite out of the housing market
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  • A $1,000 increase in student loan debt, researchers found, lowered the odds of marriage by 2 percent a month among female bachelor’s degree recipients in the first four years after graduation. That finding has been bolstered by more recent research showing a similar trend.
  • Student loan debt is hampering the growth of small businesses
  • a significant and economically meaningful negative correlation” between rising student loan debt and falling small-business formation. The mechanism isn’t hard to grasp: If you’re paying off a student loan, you’re less able to pull together the cash needed to start a business.
  • The authors note that small businesses are responsible for “approximately 60 percent of net employment activity in the U.S.”
  • Student loan debt is delaying marriage and family formation
  • This year, the Federal Reserve issued a report showing that student loan debt prevented about 400,000 young families from purchasing homes, accounting for about a quarter of the drop in home-ownership rates in this demographic from 2005 to 2014
  • Student loan debt makes it harder to weather financial crises
  • From 2007 to 2009, households with student loans saw 12.4 percent of their total net worth evaporate, while the net worth of those without such loans fell by 9.3 percent
  • Student loan debt is preventing young people from saving for retirement
  • Student loan debt can cause graduates to give up on their dreams
  • The returns on higher education aren’t what they once were
cvanderloo

Heat is a serious threat to dairy cows - we're finding innovative ways to keep them cool - 0 views

  • Severe overheating can threaten cows’ health and their ability to get pregnant and carry calves to term.
  • Dairy farmers use fans and sprayers to cool cows in their barns, but there is a substantial need for better options. Existing systems use a lot of energy and water, which is costly for farmers. And climate change is raising temperatures and stressing California’s water supplies.
  • Cows are particularly sensitive to hot weather: Their body temperature is 101.5 degrees Fahrenheit, three degrees higher than humans, and they create a large amount of heat as they break down feed in their stomachs and produce milk.
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  • These are all considered signs of heat stress. Once it sets in, cows will produce less milk. They may have trouble getting and staying pregnant, and in severe cases may die.
  • These strategies help cows regulate their body temperature, but use large quantities of water and electricity. The average California dairy farm spends US$140,000 annually on utilities. Furthermore, these systems may be insufficient during extreme heat waves.
  • Our first cooling technology uses mats buried approximately 4 inches underneath the sand bedding where cows lie down. Water flows through the mats and absorbs heat from the cows through conduction.
  • The second technology uses targeted direct evaporative cooling, sometimes referred to as a “swamp cooler,” and fabric ducts to blow cool air on the cows in the areas where cows eat and rest.
  • During our first test phase, we tested all four treatments on 32 cows at UC Davis and collected data on their respiration rates, body temperature, milk yield and behavior, as well as weather, water use and energy use. Data analysis is underway. We anticipate that we will identify at least one option that will cool cows as effectively as current options, but will also save water, energy or both.
katedriscoll

How does psychology contribute to economics? | Chicago Booth Review - 0 views

  • conomic models often give people credit for being what may seem at a glance an unexceptional thing: fully rational beings pursuing our own self-interest. But as psychologists, such as 2002 Nobel laureate Daniel Kahneman, and behavioral economists, such as 2017 laureate Richard H. Thaler, have pointed out, an assortment of biases, heuristics, and other factors often move us to behave in ways that seem distinctly irrational. Can social science’s understanding of how humans think and act be used to predict how markets will behave?
  • Although the responses tended to affirm the predictive power of behavioral economics, members of both panels reiterated that fully rational models still have an important place in economics. Pol Antras of Harvard, who agreed with the statement, added, “Still, models with fully rational agents provide a perfectly good approximation for explaining many market outcomes!”
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