Evidence across several studies leads to the conclusion that having moved and living in an unstable community are associated with some of psychology’s most central variables: happiness, self-concept, and altruism. We review evidence that mobile communities and mobile people have more...

Why are megachurches (at least 2,000 attendees in weekend services) and Meetup groups (www.meetup.com) more popular in some cities or states than others? Our answer: residential mobility (when people move a lot, they like groups that are easy to join and easy to leave; they might move again soon,...