Tweet, tweet

The financial crisis of 2008 caused many a surprise, but perhaps none as unusual as the recent discovery made by John Bollen of Indiana University.

Letter from America Josh Moody

Bollen has analysed messages sent through the website Twitter during that crisis. He expected that the emotional content of these ‘Tweets’ would mirror the market. But he was wrong. The Tweets did not reflect the market; they predicted it by two to three days, and at an accuracy of about 86%.