At the current price of a good Al's consumer surplus equals 15 and Ben's consumer surplus equals 15. By using two-part pricing a monopolist could increase his profit by

________ and ___________ represent "new wave regulation"

Fill in the blank(s) with the appropriate word(s).

Which of the following accurately describes growth rates in the United States from 1900 to the present?

A) Growth rates have risen continuously from 1900 to the present. B) Growth rates rose until the 1970s, slowed until the 1990s, rose again until 2005, and then slowed again to the present. C) Growth rates rose until the 1970s and then fell until the present. D) Growth rates have fallen continuously from 1900 to the present.