【单选题】Tammy sells woolen hats in a perfectly competitive market. The marginal cost of producing 1 hat is $24. The marginal cost of producing a second hat is $26 and the marginal cost of producing a third ha...
【单选题】If the total cost of producing 10 units is $100 and the marginal cost of the eleventh unit is $21, then which of the following is NECESSARILY true?
A.
Total variable costs of 11 units are $121.
B.
Total fixed costs are $79.
C.
The marginal cost of the tenth unit is more than $21.
【单选题】To maximize profit a perfectly competitive firm supplies a good up to the point at which: a. the marginal revenue is higher than the marginal cost. b. the marginal cost of producing the good is zero. ...