Happiness and sadness go viral

Once again, research threatens to vindicate an old intuitive idea: that the emotional states of happiness and sadness can be contagious, spreading between individuals in much the same way that flu does. The bad news? It looks like sadness is far more virulent than happiness

In the current study, Hill’s team compared patterns of relationships and emotions measured in the study to those generated by a model designed to track SARS, foot-and-mouth disease and other traditional contagions. They discounted spontaneous or immediately shared emotion — friends or relatives undergoing a common experience — and focused on emotional changes that followed changes in others.

In the spread of happiness, the researchers found clusters of “infected” and “uninfected” people, a pattern considered a “hallmark of the infectious process,” said Hill. “For happiness, clustering is what you expect from contagion rates. Whereas for sadness, the clusters were much larger than we’d expect. Something else is going on.”

Happiness proved less social than sadness. Each happy friend increased an individual’s chances of personal happiness by 11 percent, while just one sad friend was needed to double an individual’s chance of becoming unhappy.

At this point it’s worth remembering (as the researchers themselves point out) that correlation isn’t causation:

Both Hill and Rand warned that the findings illustrate broad, possible dynamics, and are not intended to guide personal decisions, such as withdrawing from friends who are having a hard time.

“The better solution is to make your sad friends happy,” said Rand.

Amen to that.

Bionic legs put wheelchairs on notice

OK, so the wheelchair won’t be obsolete until the REX system and its inevitable competitors are a great deal cheaper than US$150k, but I feel safe in assuming that won’t take too long in the grand scheme of things. Even so, as a proof of concept for technology that will allow people with paralysis of the legs to walk – actually walk, not just get around some other way – this is some sweet hardware; as a commenter at MetaFilter put it: “Jokes aside, even though the functionality is fairly constrained, the smile on his face says it’s worth it.” I’m inclined to agree.

Attention economics, redux: why supermodels are like toxic assets

Remember me linking to that article that compared the inflationary bubble in the cult of celebrity to the sub-prime mortgage crisis? Well, here’s a similar (and slightly more serious) piece that explains how supermodels are similar to toxic assets [via MetaFilter]:

Coco [Rocha] is what economists would call a winner in a “winner-take all market,” prevalent in culture industries like art and music, where a handful of people reap very lucrative and visible rewards while the bulk of contestants barely scrape by meager livings before they fade into more stable and far less glamorous careers. The presence of such spectacular winners like Coco Rocha raises a great sociological question: how, among the thousands of wannabe models worldwide, is any one 14 year-old able to rise from the pack? What makes Coco Rocha more valuable than the thousands of similar contestants? How, in other words, do winners happen?

The secrets to Coco’s success, and the dozens of girls that have come before and will surely come after her, have much less to do with Coco the person (or the body) than with the social context of an unstable market. There is very little intrinsic value in Coco’s physique that would set her apart from any number of other similarly-built teens—when dealing with symbolic goods like “beauty” and “fashionability,” we would be hard pressed to identify objective measures of worth inherent in the good itself. Rather, social processes are at work in the fashion modeling market to bequeath cultural value onto Coco. The social world of fashion markets reveals how market actors think collectively to make decisions in the face of uncertainty. And this social side of markets, it turns out, is key to understanding how investors could trade securities backed with “toxic” subprime mortgage assets leading us into the 2009 financial crisis.

Well worth a read; it’s interesting to see someone looking at a market in terms of its social construction rather than as a bunch of mathematical abstractions and assumptions. One of the things that has frustrated my research into economics is the way it always seems to be portrayed as a coldly rational science, without any attempt to understand or deconstruct the emergent social consensus that drives it. This is almost ertainly due to me looking in the wrong places, so if anyone has any suggestions for good sources of social and/or behavioural economic literature that won’t baffle an inquisitive layman, please pipe up in the comments.

There’s platinum in them there spacerocks

Still wondering what the business model might be for commercial space operations, beyond sight-seeing tourist flights, inflatable hotels and space-truckin’ logistics missions on behalf of beleagured nation-state space programs? Well, where there’s rare resources, there’s money to be made… and asteroids are eminently reachable with current technologies, as well as full of rare element goodies that we have little of here on Earth.

Last one to write a FiftyFortyniners-in-space novella is a rotten egg! (Note for Ben Bova and others: previously published works are not eligible.)

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