In cost-benefit analysis, a low discount rate tends to favor projects with relatively ____ lives

Refer to the above figure. Which of the graphs are consistent with the age-earnings profile?

A) Panel A B) Panel B C) Panel C D) Panel D

In the above figure, at the firm's profit maximizing output, total revenue is rectangle

A) 0P1AQ1. B) 0P3FQ3. C) 0P5EQ5. D) 0P2BQ1.