Today’s wealth gap does not just exist between the richest 1 percent of the population and everyone else; there have been growing inequalities among the less-wealthy 99 percent of people, too. In an article published today in Science, MIT economist David Autor contends that much of our present inequality stems from disparities in education. This has evolved in two directions: From 1980 to 2012, inflation-adjusted, full-time earnings of college-educated males increased anywhere from 20 percent to 56 percent, depending on whether they also acquired graduate degrees. Conversely, real earnings of high school graduates fell 11 percent, and earnings of high school dropouts fell 22 percent. MIT News talked with Autor about inequality.