HAPPINESS has traditionally been considered an elusive and evanescent thing. To some, even trying to achieve it is an exercise in futility. It has been said that “happiness is as a butterfly which, when pursued, is always beyond our grasp, but which if you will sit down quietly, may alight upon you.” Psychologists and economists have studied happiness for decades. They begin simply enough — by asking people how happy they are. The richest data available to social scientists is the University of Chicago ’s General Social Survey, a survey of Americans conducted since 1972. This widely used resource is considered the scholarly gold standard for understanding social phenomena. The numbers on happiness from the survey are surprisingly consistent. Every other year for four decades, roughly a third of Americans have said they’re “very happy,” and about half report being “pretty happy.” Only about 10 to 15 percent typically say they’re “not too happy.” Beneath these averages are so