Jim' burger produces 500 burgers per week. Each burger is priced at $3 . What is the marginal revenue of selling the 50th burger?

What will cause an increase in US AD?

a. tax cut b. an appreciating US dollar c. a decline in G spending d. all

If a firm increases its output level by 50 percent and, as a result, long-run total cost rises by 40 percent, the firm is experiencing

a. diseconomies of scale b. constant returns to scale c. economies of scale d. increasing marginal returns e. diminishing marginal returns