A movie monopolist sells to students and adults. The demand function for students is QdS = 600 - 100P and the demand function for adults is QdA = 1,200 - 100P. The marginal cost is $2 per ticket. Suppose the movie theater can price discriminate. What is the monopolist's profit from both students and adults?

The division of labor usually refers to splitting

a. the three coordination decisions among different sets of planners. b. the parts of a complex task among different workers. c. the production of consumption goods and capital goods among different workers. d. political leaders into radical and conservative camps each year.

The long-run aggregate supply curve is

A. vertical. B. horizontal. C. upward sloping. D. U-shaped.