For example, a person was 20% more likely to feel happy if a friend living within 1.5 kilometers was also happy.
VOA: special.2009.01.21
"I feel like it's impossible to please the hardcore comic book fans because they'll never be happy no matter what you do.
VOA: standard.2010.06.20
Yet the mayor realises where the proof of the pudding lies: whether middle-class parents en masse will feelhappyto send their children to inner-city schools.