Which of the following variables is used to measure economic growth?

The concept of Pareto optimality is a

A) utopian concept. B) useful concept because it guarantees economic equality. C) useful concept because it defines economic efficiency. D) useful concept that carefully balances a society's desires for equality and efficiency.

A tax whose impact varies inversely with the income of the person taxed, and poor people have a higher percentage of their income taxed than rich people, is known as a:

a. regressive tax. b. progressive tax. c. proportional tax. d. flat tax. e. tax holiday.