Why did researchers pay people to leave Facebook for one year? To determine its value to users, in contrast to its market value. (image) Tufts University, Health Sciences Campus Share Print E-Mail Caption Image of Facebook app on phone Credit CCO Usage Restrictions CC0 https://pixabay.com/en/facebook-internet-network-social-1903445/ Share Print E-Mail Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.