Economies of scale occur when
A. long-run average total costs rise as output increases.
B. long-run average total costs fall as output increases.
C. average fixed costs are falling.
D. average fixed costs are constant.
查看答案
If the average-total-cost of producing five units is $10, and the marginal-cost of producing the fifth unit is $10, then the average-total-cost curve is at its minimum at five units.
A. 对
B. 错
If the marginal cost of producing the fifth unit of output is higher than the marginal cost of producing the fourth unit of output, then at five units of output, average total cost must be rising.
A. 对
B. 错
Diminishing marginal productivity implies decreasing total product.
A. 对
B. 错
Anna borrows $5,000 from a bank and withdraws $1,000 from her personal savings to start a coffee shop. The interest rate is 5 percent for both the bank loan and her personal savings. Her opportunity cost of capital is $250.
A. 对
B. 错