If the natural monopoly shown in the figure above is unregulated, then the deadweight loss will be

If an increase in price results in no change in total revenue, then demand must be

A) inelastic. B) elastic. C) unit elastic. D) infinitely elastic.

Along a straight-line demand curve the

a. slope is constant. b. ratio P/Q constantly changes. c. elasticity grows much smaller toward the right-hand end. d. All of the above are correct.