高階econ-u05-d06
Why does marginal revenue sit below price when a firm faces a downward-sloping demand curve?
A. To sell an extra unit the firm must lower the price on every unit it sells✓ 答案
B. Cost curves force MR to equal zero
C. A tax wedge always sits on the MR curve
D. MR always equals average revenue
解說
Lowering the price to gain one more sale also reduces revenue on the units the firm already sells. The loss on those units is why MR falls faster than price along a downward-sloping demand curve.