In addition to income and gender inequality, there is a happiness gap that relates to income, education, and job prestige.
A Surprising Fast-Food Fact
Although fast-food consumption has been connected to income, recent research indicates the correlation is not what we expect.
A Mystery: Trying to Find the Middle Class
While everyone refers to the middle class and most of us say we are in the middle class, few know the characteristics of the group to which they refer.