Suppose there is an economy where 80 percent of people earn more than their parents and 40

Question:

Suppose there is an economy where 80 percent of people earn more than their parents and 40 percent end up in a different income quintile than their parents. What measure of the income does the first statistic tell you about? What about the second?
Distribution
The word "distribution" has several meanings in the financial world, most of them pertaining to the payment of assets from a fund, account, or individual security to an investor or beneficiary. Retirement account distributions are among the most...