无数条等产量曲线与等成本曲线的切点连接起来的曲线是()。
A.生产可能性曲线
B.无差异曲线
C.生产扩展线
D.消费者可能性曲线
A.生产可能性曲线
B.无差异曲线
C.生产扩展线
D.消费者可能性曲线
巴雷特曲线主要是反映()的关系。
A.收入与人口
B.销售量与销售额
C.产量与利润
D.利润与成本
A.最优组合应位于有效边界上
B.最优组合应位于投资者的无差异曲线上
C.最优组合是唯一的,是无差异曲线与有效边界的切点
D.上述三条件满足其中之一即
E.最优组合不是唯一的
If a firm enjoys economies of scale up to a certain output level, and cost then increases proportionately with output, what can you say about the shape of the long -run average cost curve?
(1)假设某厂商的产量函数为q=9x1/2,在短期,固定成本为1000美元,x为可变投入,其成本为4000美元/单位。生产q单位产品的总成本为多少?[即求出总成本函数C(q)]
(2)写出供给曲线方程。
(3)如果价格为1000美元,厂商产量为多少?利润水平为多少?在成本曲线图上表示出你的结论。
a. Suppose that a firm's production function is q=9x1/2in the short nun, where there are fixed costs of $ 1000, and x is the variable input whose cost is S 4000 per unit. What is the total cost of producing a level o[ output q? In other words, identify the total cost function C(q)?
b. Write down the equation for the supply curve.
e. If price is $ 1000, how many units will the firm produce? What is the level of profit? Illustrate your answer on a cost - curve graph.