nhaliday + len:short   131

[0809.5250] The decline in the concentration of citations, 1900-2007
These measures are used for four broad disciplines: natural sciences and engineering, medical fields, social sciences, and the humanities. All these measures converge and show that, contrary to what was reported by Evans, the dispersion of citations is actually increasing.

- natural sciences around 60-70% cited in 2-5 year window
- humanities stands out w/ 10-20% cited (maybe because of focus on books)
study  preprint  science  meta:science  distribution  network-structure  len:short  publishing  density  🔬  info-dynamics  org:mat 
february 2017 by nhaliday
Genetics and educational attainment | npj Science of Learning
Figure 1 is quite good
Sibling Correlations for Behavioral Traits. This figure displays sibling correlations for five traits measured in a large sample of Swedish brother pairs born 1951–1970. All outcomes except years of schooling are measured at conscription, around the age of 18.

correlations for IQ/EA for adoptees are actually nontrivial in adulthood, hmm

Figure 2 has GWAS R^2s through 2016 (in-sample, I guess?)
study  org:nat  biodet  education  methodology  essay  survey  genetics  GWAS  variance-components  init  causation  🌞  metrics  population-genetics  explanation  unit  nibble  len:short  big-picture  behavioral-gen  state-of-art  iq  embodied  correlation  twin-study  sib-study  summary  europe  nordic  data  visualization  s:*  tip-of-tongue  spearhead  bioinformatics 
february 2017 by nhaliday
political analysis | West Hunter
Just to make things clear, most political reporters are morons, nearly as bad as sports reporters. Mostly ugly cheerleaders for their side, rather than analysts. Uninteresting.

how to analyze polls:

Who ever is ahead in the polls at the time of election is extremely likely to win. Talk about how Candidate X would have a ‘difficult path to 270 electoral votes’ when he’s up 2 points (for example), is pretty much horseshit. There are second-order considerations: you get more oomph per voter when the voter is in a small state, and you also want your votes distributed fairly evenly, so that you win states giving you a majority of electoral votes by a little rather than winning states giving you a minority of electoral votes by huge margins. Not that a candidate can do much about this, of course.

When you hear someone say that it’s really 50 state contests [ more if you think about Maine and Nebraska] , so you should pay attention to the state polls, not the national polls: also horseshit. In some sense, it is true – but when your national polls go up, so do your state polls – almost all of them, in practice. On election day, or just before, you want to consider national polls rather than state polls, because they are almost always more recent, therefore more accurate.

When should you trust an outlier poll, rather than the average: when you want to be wrong.

Money doesn’t help much. Political consultants will tell you that it does, but then they get 15% of ad buys.

A decent political reporter would actually go out and talk to people that aren’t exactly like him. Apparently this no longer happens.

All of these rules have exceptions – but if you understand those [rare] exceptions and can apply them, you’re paying too much attention to politics.
thinking  politics  media  data  street-fighting  poll  contrarianism  len:short  west-hunter  objektbuch  metameta  checklists  sampling-bias  outliers  descriptive  social-choice  gilens-page  elections  scitariat  money  null-result  polisci  incentives  stylized-facts  metabuch  chart  top-n  hi-order-bits  track-record  wonkish  data-science  tetlock  meta:prediction  info-foraging  civic  info-dynamics  interests 
september 2016 by nhaliday
My Beautiful Bubble, Bryan Caplan | EconLog | Library of Economics and Liberty
funny rejoinder from Sailer:
Of course, if there were a big war, it would be nice to be defended by all those dreary Americans you despise.

And, the irony is, they'd do it, too, just because you are an American.
reflection  society  community  economics  contrarianism  lifestyle  philosophy  len:short  econotariat  cracker-econ  org:econlib  network-structure  minimalism  -_-  polarization  individualism-collectivism  isteveish  subculture  nationalism-globalism 
september 2016 by nhaliday
Overcoming Bias : Two Kinds Of Status
prestige and dominance

More here. I was skeptical at first, but now am convinced: humans see two kinds of status, and approve of prestige-status much more than domination-status. I’ll have much more to say about this in the coming days, but it is far from clear to me that prestige-status is as much better than domination-status as people seem to think. Efforts to achieve prestige-status also have serious negative side-effects.

Two Ways to the Top: Evidence That Dominance and Prestige Are Distinct Yet Viable Avenues to Social Rank and Influence: https://henrich.fas.harvard.edu/files/henrich/files/cheng_et_al_2013.pdf
Dominance (the use of force and intimidation to induce fear) and Prestige (the sharing of expertise or know-how to gain respect)

...

According to the model, Dominance initially arose in evolutionary history as a result of agonistic contests for material resources and mates that were common among nonhuman species, but continues to exist in contemporary human societies, largely in the form of psychological intimidation, coercion, and wielded control over costs and benefits (e.g., access to resources, mates, and well-being). In both humans and nonhumans, Dominance hierarchies are thought to emerge to help maintain patterns of submission directed from subordinates to Dominants, thereby minimizing agonistic battles and incurred costs.

In contrast, Prestige is likely unique to humans, because it is thought to have emerged from selection pressures to preferentially attend to and acquire cultural knowledge from highly skilled or successful others, a capacity considered to be less developed in other animals (Boyd & Richerson, 1985; Laland & Galef, 2009). In this view, social learning (i.e., copying others) evolved in humans as a low-cost fitness-maximizing, information-gathering mechanism (Boyd & Richerson, 1985). Once it became adaptive to copy skilled others, a preference for social models with better than average information would have emerged. This would promote competition for access to the highest quality models, and deference toward these models in exchange for copying and learning opportunities. Consequently, selection likely favored Prestige differentiation, with individuals possessing high-quality information or skills elevated to the top of the hierarchy. Meanwhile, other individuals may reach the highest ranks of their group’s hierarchy by wielding threat of force, regardless of the quality of their knowledge or skills. Thus, Dominance and Prestige can be thought of as coexisting avenues to attaining rank and influence within social groups, despite being underpinned by distinct motivations and behavioral patterns, and resulting in distinct patterns of imitation and deference from subordinates.

Importantly, both Dominance and Prestige are best conceptualized as cognitive and behavioral strategies (i.e., suites of subjective feelings, cognitions, motivations, and behavioral patterns that together produce certain outcomes) deployed in certain situations, and can be used (with more or less success) by any individual within a group. They are not types of individuals, or even, necessarily, traits within individuals. Instead, we assume that all situated dyadic relationships contain differential degrees of both Dominance and Prestige, such that each person is simultaneously Dominant and Prestigious to some extent, to some other individual. Thus, it is possible that a high degree of Dominance and a high degree of Prestige may be found within the same individual, and may depend on who is doing the judging. For example, by controlling students’ access to rewards and punishments, school teachers may exert Dominance in their relationships with some students, but simultaneously enjoy Prestige with others, if they are respected and deferred to for their competence and wisdom. Indeed, previous studies have shown that based on both self- and peer ratings, Dominance and Prestige are largely independent (mean r = -.03; Cheng et al., 2010).

Status Hypocrisy: https://www.overcomingbias.com/2017/01/status-hypocrisy.html
Today we tend to say that our leaders have prestige, while their leaders have dominance. That is, their leaders hold power via personal connections and the threat and practice of violence, bribes, sex, gossip, and conformity pressures. Our leaders, instead, mainly just have whatever abilities follow from our deepest respect and admiration regarding their wisdom and efforts on serious topics that matter for us all. Their leaders more seek power, while ours more have leadership thrust upon them. Because of this us/them split, we tend to try to use persuasion on us, but force on them, when seeking to to change behaviors.

...

Clearly, while there is some fact of the matter about how much a person gains their status via licit or illicit means, there is also a lot of impression management going on. We like to give others the impression that we personally mainly want prestige in ourselves and our associates, and that we only grant others status via the prestige they have earned. But let me suggest that, compared to this ideal, we actually want more dominance in ourselves and our associates than we like to admit, and we submit more often to dominance.

Cads, Dads, Doms: https://www.overcomingbias.com/2010/07/cads-dads-doms.html
"The proper dichotomy is not “virile vs. wimpy” as has been supposed, but “exciting vs. drab,” with the former having the two distinct sub-groups “macho man vs. pretty boy.” Another way to see that this is the right dichotomy is to look around the world: wherever girls really dig macho men, they also dig the peacocky musician type too, finding safe guys a bit boring. And conversely, where devoted dads do the best, it’s more difficult for macho men or in-town-for-a-day rockstars to make out like bandits. …

Whatever it is about high-pathogen-load areas that selects for greater polygynous behavior … will result in an increase in both gorilla-like and peacock-like males, since they’re two viable ways to pursue a polygynous mating strategy."

This fits with there being two kinds of status: dominance and prestige. Macho men, such as CEOs and athletes, have dominance, while musicians and artists have prestige. But women seek both short and long term mates. Since both kinds of status suggest good genes, both attract women seeking short term mates. This happens more when women are younger and richer, and when there is more disease. Foragers pretend they don’t respect dominance as much as they do, so prestigious men get more overt attention, while dominant men get more covert attention.

Women seeking long term mates also consider a man’s ability to supply resources, and may settle for poorer genes to get more resources. Dominant men tend to have more resources than prestigious men, so such men are more likely to fill both roles, being long term mates for some women and short term mates for others. Men who can offer only prestige must accept worse long term mates, while men who can offer only resources must accept few short term mates. Those low in prestige, resources, or dominance must accept no mates. A man who had prestige, dominance, and resources would get the best short and long term mates – what men are these?

Stories are biased toward dramatic events, and so are biased toward events with risky men; it is harder to tell a good story about the attraction of a resource-rich man. So stories naturally encourage short term mating. Shouldn’t this make long-term mates wary of strong mate attraction to dramatic stories?

https://www.overcomingbias.com/2010/07/cads-dads-doms.html#comment-518319076
Woman want three things: someone to fight for them (the Warrior), someone to provide for them (the Tycoon) and someone to excite their emotions or entertain them (the Wizard).

In this context,

Dom=Warrior
Dad= Tycoon
Cad= Wizard

To repeat:

Dom (Cocky)+ Dad (Generous) + Cad (Exciting/Funny) = Laid

https://www.overcomingbias.com/2010/07/cads-dads-doms.html#comment-518318987
There is an old distinction between "proximate" and "ultimate" causes. Evolution is an ultimate cause, physiology (and psychology, here) is a proximate cause. The flower bends to follow the sun because it gathers more light that way, but the immediate mechanism of the bending involves hormones called auxins. I see a lot of speculation about, say, sexual cognitive dimorphism whose ultimate cause is evolutionary, but not so much speculation about the proximate cause - the "how" of the difference, rather than the "why". And here I think a visit to an older mode of explanation like Marsden's - one which is psychological rather than genetic - can sensitize us to the fact that the proximate causes of a behavioral tendency need not be a straightforward matter of being hardwired differently.

This leads to my second point, which is just that we should remember that human beings actually possess consciousness. This means not only that the proximate cause of a behavior may deeply involve subjectivity, self-awareness, and an existential situation. It also means that all of these propositions about what people do are susceptible to change once they have been spelled out and become part of the culture. It is rather like the stock market: once everyone knows (or believes) something, then that information provides no advantage, creating an incentive for novelty.

Finally, the consequences of new beliefs about the how and the why of human nature and human behavior. Right or wrong, theories already begin to have consequences once they are taken up and incorporated into subjectivity. We really need a new Foucault to take on this topic.

The Economics of Social Status: http://www.meltingasphalt.com/the-economics-of-social-status/
Prestige vs. dominance. Joseph Henrich (of WEIRD fame) distinguishes two types of status. Prestige is the kind of status we get from being an impressive human specimen (think Meryl Streep), and it's governed by our 'approach' instincts. Dominance, on the other hand, is … [more]
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september 2016 by nhaliday
Overcoming Bias : We Need The Very Rich
Why look at years-to-payback instead of return on investment? A new NBER paper on private vs. public firms makes the answer clear. Unless project gains can be very clearly proven to analysts, or perhaps so small and numerous to allow averaging over them, public firms are basically incapable of taking a loss on earnings this quarter in order to make gains several years later, no matter how big those gains. CEOs are strongly tempted to instead please analysts by grabbing higher short-term quarterly earnings. So we need the very rich to make long-term investments.
hanson  study  economics  micro  investing  finance  econometrics  business  arbitrage  len:short  efficiency  🎩  market-failure  pre-2013  long-short-run  industrial-org  entrepreneurialism  wealth  chart  ratty 
september 2016 by nhaliday
Shut Up And Guess - Less Wrong
At what confidence level do you guess? At what confidence level do you answer "don't know"?

I took several of these tests last month, and the first thing I did was some quick mental calculations. If I have zero knowledge of a question, my expected gain from answering is 50% probability of earning one point and 50% probability of losing one half point. Therefore, my expected gain from answering a question is .5(1)-.5(.5)= +.25 points. Compare this to an expected gain of zero from not answering the question at all. Therefore, I ought to guess on every question, even if I have zero knowledge. If I have some inkling, well, that's even better.

You look disappointed. This isn't a very exciting application of arcane Less Wrong knowledge. Anyone with basic math skills should be able to calculate that out, right?

I attend a pretty good university, and I'm in a postgraduate class where most of us have at least a bachelor's degree in a hard science, and a few have master's degrees. And yet, talking to my classmates in the cafeteria after the first test was finished, I started to realize I was the only person in the class who hadn't answered "don't know" to any questions.

even more interesting stories in the comments
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september 2016 by nhaliday
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