This document focuses on the "Top 1%" as a whole because that's been the traditional cut-off point for "the top" in academic studies, and because it's easy for us to keep in mind that we are talking about one in a hundred. But it is also important to realize that the lower half of that top 1% has far less than those in the top half; in fact, both wealth and income are super-concentrated in the top 0.1%, which is just one in a thousand. To get an idea of the differences, take a look at an