God this article is bad on so many levels I don't know where to start. First, income inequality doesn't measure income mobility. Places like the US that have a huge number of unskilled illegal and legal immigrants constantly entering at the bottom level will always have high income inequality. The question is, what happens to each individual over the course of their lives? 83% of Americans will earn more than their p…
Just to pick up on the income mobility. The US is one of the worst countries regarding income mobility while at the same time one of the ones implementing the most "trickle down" economic policies [1]. The contrast is particularly stark when comparing to the Scandinavian countries, which get often called "socialist" in the US. So by your own metric, trickle down does not work, because it leads to worse outcomes.
[1] https://en.wikipedia.org/wiki/Socioeconomic_mobility_in_the_...