What stage of the business cycle immediately follows the trough?

If the government decreases the tax on cell phones, ________

A) the deadweight loss decreases B) the consumer surplus does not change because sellers will not lower the price of a cell phone C) the number of cell phones purchased does not change D) the market becomes less efficient because the government collects less tax revenue

A monopoly firm can sell its fourth unit of output for a price of $250 . In order to sell more than five units, it must expect to receive a price:

a. equal to $250. b. greater than $250. c. less than $250. d. equal to $340. e. the price is impossible to calculate with the information given.