A review of:
Macroeconomic Inequality from Reagan to Trump:
Market Power, Wage Repression, Asset Price Inflation, and Industrial Decline.
by Lance Taylor
Wage repression as the biggest driver of inequality in the U.S.
This conclusion differs from many who have studied the issue, such as Thomas Piketty, who theorized that inequality is caused mainly by a tendency of profits to run ahead of the growth rate in the economy.
Book:
https://www.goodreads.com/book/show/48989783-macroeconomic-inequality-from-reagan-to-trump