Children as young as age 4 express dislike of and are willing to punish those who freeload off the work of other group members, a new Yale University study has found.
But kids also make a clear distinction between those who freeload intentionally and...
Dr. Nicholas A. Christakis, Anna Marie Pyle, Daniel Spielman, and Ruth Bernard Yeazell were appointed as Sterling Professors.
Christakis, a sociologist and physician who conducts research in the areas of network science, biosocial science, and public...