16. The Lorenz curve shows the percentage of Americans that earn below the poverty threshold. A) True B) False 17. Generally speaking, a person's earnings do not vary much by age. A) True B) False 18. Income redistribution policies include all of the following, EXCEPT: A) proportional taxes. B) Medicare. C) welfare programs. D) progressive taxes. 19. In the United States, since the 1970s, the Gini coefficient has: A) increased. B) decreased. C) held constant within a small range. D) fluctuated up and then down