Decision cascades in social networks

How do people in a social network behave? How are opinions, decisions and behaviors of individuals influenced by their online networks? Can the application of math help answer these questions?

Facebook probed by Britain over mood experiment

Authorities will question Facebook over an experiment in which the social network secretly manipulated the feelings of users to test their mood, officials said Wednesday.

'Emotional contagion' sweeps Facebook

When it hasn't been your day – your week, your month, or even your year – it might be time to turn to Facebook friends for a little positive reinforcement. According to a new study by social scientists at Cornell, the ...

Facebook feelings are contagious, study shows

You can't catch a cold from a friend online. But can you catch a mood? It would seem so, according to new research from the University of California, San Diego.

Why yawning is contagious in bonobos

Being socially close to another bonobo is more likely to make bonobo apes yawn in response to the other's yawns, according to research published November 14 in the open access journal PLOS ONE by Elisabetta Palagi and Elisa ...

Facebook 'poke' gets out the vote

A single Facebook message on a congressional election day in 2010 prompted about a third of a million more Americans to cast their vote, scientists said on Wednesday.

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