We live in a polarizing society, so perhaps it’s inevitable that our experience of inequality should be polarized, too.In the first place, there is what you might call Blue Inequality. This is the kind experienced in New York City, Los Angeles, Boston, San Francisco, Seattle, Dallas, Houston and the District of Columbia. In these places, you see the top 1 percent of earners zooming upward, amassing more income and wealth. The economists Jon Bakija, Adam Cole and Bradley Heim have done the most authoritative research on who these top 1 percenters are.Roughly 31 percent started or manage ...