I agree we don't have dispositive evidence but most of this is pretty murky speculation
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Replying to @BrendanNyhan
$100k is what we know. $100k Facebook is not a small amount. Could effectively the reach millions AND also impact news coverage.
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Replying to @zeynep @BrendanNyhan
A good deal of this appeared to me to be aimed at getting journalist to write certain stories. And they did. Again and again.
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Replying to @zeynep @BrendanNyhan
Facebook's impact is not an the ads per se but in the way it works as peer to peer socializing ecology. By design, FB ads can skip to that.
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Replying to @BrendanNyhan @zeynep
Y need more data, yet lot of relevant theoretical & empirical work already in areas like social-influence/media-effect/online-radicalization
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Replying to @svateboje @BrendanNyhan
Those focus on media effects. This is a hybrid form of socialization. It's novel. What we do have published shows real, measurable effects.
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Replying to @BrendanNyhan @zeynep
Don't mean to answer for
@zeynep. & just an amateur. But some stuff http://journals.plos.org/plosone/article?id=10.1371/journal.pone.0173851 … https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3834737/ … http://www.pnas.org/content/111/24/8788.full …1 reply 0 retweets 2 likes -
Replying to @svateboje @BrendanNyhan
Yeah, that one is mindblowing. And the measured affect is a minimum effect – they can only measure legal names.
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One time minor tweak flashed once on the screen –340K more voters. One kind of effect. Political ads on FB have multiple downstream effects.
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Replying to @zeynep @svateboje
I agree turnout study is v cool but that was effect of FB - not an ad - telling u *your friends* voted. And still fraction of a % pt effect
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Fascinating. Could be very hard to separate the broader effects Zeynep is talking about from the preexisting ideological alignment (1
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