A poll tax is a regressive tax

When a man with a lawnmower in his trunk stops at Bill's house and offers to mow Bill's yard, economists assume the man

A) expects to be made better off by mowing Bill's yard for a fee. B) is desperate. C) is being exploited. D) both A and B.

Private ownership and competitive markets are important for economic growth because they provide individuals with a strong incentive to

a. care for resources and use them beneficially. b. innovate and introduce new products that are highly valued relative to their cost. c. produce goods efficiently. d. all of the above are correct.