Sociologists have developed elaborate theories of who spreads gossip and news, but they've had less success measuring what kind of information travels fastest. More recently, though, researchers at Penn dived deep into the archives of NY Times articles and found a surprising result -- good news travels faster than bad. "If I've just read this story that changes the way I understand the world and myself, I want to talk to others about what it means," Dr. Jonah Berger said.
