The top 0.1 percent owns a greater share of the nation’s wealth than the bottom 90 percent combined. The richest dynastic families in the United States have seen their wealth expand at a dizzying pace. The three wealthiest families — the Waltons, the Kochs, and the Mars — increased their wealth by nearly 6,000 percent since 1983. The proportion of families with zero or negative wealth (meaning they owe more than they own) jumped from 1 in 6 to 1 in 5.
— source otherwords.org | Feb 6, 2019