Twitter Says We’re Sadder Than When Lehman Failed

New paper uses Twitter keywords over last three years to try and characterize our happiness, or lack thereof, over last three years. It’s amusing, has an interesting methodology and is mostly well-done, so worth a look. Here is the key graph, showing that we’re apparently sadder (less happy?) than when Lehman failed. (Click for a larger version.)

Twit hap 2

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