fix articles 316021, belle epoque
The empirical-historical analysis of the top incomes and their wealth are in the center with Thomas Piketty's "Capital" (2014). The share of the top 10% was never below 60% from 1917 to 2012. A wealth tax is vital to reverse the exploding inequality.
The wealth of others has become more a problem and less an incentive. Capital is blind, Thomas Piketty says. Capital grows faster than the economy. Differences in wealth are inherent in capitalism but do not represent a natural law. A society can accept them or act against them.