Microeconomics · 免费预览
边际收益低于价格
由于垄断者为了多卖出一单位产品，必须对每一单位都降价，因此其边际收益低于需求；并且在直线需求曲线下，边际收益下降的速度是需求下降速度的两倍。
1. The monopolist's awkward arithmetic
The monopolist's awkward arithmetic
2. The two effects
The two effects
3. The linear shortcut
The linear shortcut
4. Reading the table like a monopolist
Reading the table like a monopolist
5. Computing marginal revenue
A monopolist can sell 3 units at 42 dollars each or 4 units at 35 dollars each. What is the marginal revenue of the fourth unit?
6. The elastic side
Why does a monopolist never operate on the inelastic portion of its demand curve?
7. The MR line
A straight-line demand curve is P = 60 - Q/2. Write the value of marginal revenue at Q = 24, using the twice-the-slope rule, MR = 60 - Q, and give the number.
8. The arithmetic of the third unit
A monopolist can sell 2 units at 30 dollars each, or 3 units at 26 dollars each. What is the marginal revenue of the third unit?
9. Never on the flat of the curve
Why does a monopolist never operate where its demand is inelastic?
10. Doubling the slope
A straight-line demand curve is P = 100 - Q. Using the rule that marginal revenue doubles the slope, compute marginal revenue at Q = 30, and write the number.