pessimistic rumination
Back in 1991, a psychologist named Harold Zullow published research suggesting that the emotional content of songs in the Billboard Hot 100 chart could predict recessions. Hits containing “pessimistic rumination” (“I heard it through the grapevine / Not much longer would you be mine”) tended to predict an economic downturn. His successor is a young economist named Hisam Sabouni, who reckons that a computer-aided analysis of Spotify streaming gives him an edge in forecasting stock market movements and consumer sentiment.
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