price times marginal revenue.
15. Alan Jones owns a company that sells life insurance. When he employs 10 salespersons his firm sells
$200,000 worth of contracts per week, and when he employs 11 salespersons, total revenue is
$210,000. The marginal revenue product of the 11th salesperson is:
16. Troll Corporation sells dolls for $10.00 each in a market that is perfectly competitive. Increasing the
number of workers from 100 to 101 would cause output to rise from 500 to 550 dolls per day. The
marginal revenue product for the 101st worker is:
17. Tucker Corporation sells its product for $5.00. Tucker’s industrial engineers have informed
management that hiring one additional worker will increase output by five units per hour. Tucker
should hire the additional worker only if the wage rate is:
18. For a competitive firm, workers’ marginal revenue product equals the marginal product of labor times
the:
price of the firm’s product.
19. A competitive car wash currently hires 4 workers, who together can wash 80 cars per day. The market
price of car washes is $5 per wash, and the price of workers is $60 per day. The car wash should hire a
fifth worker if it would increase total production to at least: