Human language reveals a universal positivity bias [arxiv] [PNAS]

Peter Sheridan Dodds, Eric Clark, Suma Desu, Morgan Frank, Andrew Reagan, Jake Ryland Williams, Lewis Mitchell, Kameron Decker Harris, Isabel M. Kloumann, James P. Bagrow, Karine Megerdoomian, Matthew T. McMahon, Brian F. Tivnan, and Christopher M. Danforth