12) A firm's demand for labor is derived from the A. opportunity costs associated with labor and leisure B. desires and needs of the entrepreneur C. cost of labor inputs D. demand for its output
13) Owen runs a delivery business and currently employs three drivers. He owns three vans that employees use to make deliveries, but he is considering hiring a fourth driver. If he hires a fourth driver, he can schedule breaks and lunch hours so all three vans are in constant use, allowing him to increase deliveries per day from 60 to 75. This will cost an additional $75 per day to hire the fourth driver. The marginal cost per delivery of increasing output beyond 60 deliveries per day A. is $0 because Owen does not have to purchase another van B. is $5 C. is $75 D. cannot be calculated without knowing Owen's total fixed costs
14) Expected economic profit per unit is equal to A. expected price B. expected average total cost C. the difference between expected average price and expected average total cost D. the difference between expected total revenue and expected total cost
15) If a firm in a perfectly competitive market experiences a technological breakthrough, A. other firms would find out about it eventually B. other firms would find out about it immediately C. other firms would not find out about it D. some firms would find out about it, but others would not
16) A significant difference