平均固定成本（Average fixed cost）

假设厂商成本为C（q)=16+4q²。（1)求出平均成本、固定成本、可变成本、平均可变成本和平均固定

假设厂商成本为C(q)=16+4q²。

(1)求出平均成本、固定成本、可变成本、平均可变成本和平均固定成本。(提示:边际成本为MC =8q。)

(2)在图上画出成本、边际成本和平均可变成本曲线。

(3)求出最小化平均成本的产出水平。

(4)当价格在哪一区间时厂商产量为正？

(5)当价格在哪一区间时厂商利润为负？

(6)当价格在哪一区间时厂商利润为正？

Suppose the same firm's cost function is C(q)=16+4q.

a. Find variable cost, fixed cost, average cost average variable cost. and average fixed cost.(Hint: Marginal cast is given by MC =8q. )

b. Show the average cost, marginal cost, and average variable cost curves on a graph.

c. Find the output that minimizes average cost.

d. At what range of prices will the firm produce a positive output？

f.At what range of prices will the firm earn a positive profit.

假定某公司必须支付笔固定数目的年度特许权税费， 这笔费用与该公司的产量无关。（1)这笔费用将如

假定某公司必须支付笔固定数目的年度特许权税费， 这笔费用与该公司的产量无关。

(1)这笔费用将如何影响公司的固定成本、边际成本和平均成本？

(2)现假定该公司需支付一笔与其产量成比例的税费。那么，该费用又是如何影响公司的固定成本、边际成本以及平均成本的？

Suppose a firm must pay an annual tax, which is a fixed sum , independent of whether it produces any output.

a. How does this lax affect the firm 's fixed, marginal, and average costs？

b. Now suppose the firm is charged a lax that is proportional to the number of items it produces. Again, how does this tax affect the firm ' s fixed, marginal, and average costs？

某公司的短期总成本函数由等式TC=200+55q给出，式中，TC为总成本; q为总产出数量;两者均以千计。（

某公司的短期总成本函数由等式TC=200+55q给出，式中，TC为总成本; q为总产出数量;两者均以千计。

(1)该公司的固定成本是多少？

(2)如果该公司生产了100000单位的产品，它的平均可变成本是多少？

(3)其所生产的单位产品的边际成本是多少？

(4)其平均固定成本是多少？

(5)假定该公司通过贷款扩大生产规模，其固定成本增加5000美元，但其可变成本降至每1000单位产品45000美元，利率i也进入成本函数。利率每上升1%，成本增加3000美元。写出新的成本函数。

The short - run cost function of a company is given by the equation TC = 200 +55q, where TC is the total cost and q is the total quaintly of output ，both measured in thousands.

a. What is the company' s fixed cost？

b. If the company produced 100000 units of goods, what is its average variable cost？

c. What would be its marginal cost of production？

d. What would be its average fixed cost？

e. Suppose the company borrow money and expands its factory. Its fixed cost rises by

$ 50000, but its variable cost falls to $ 45000 per 1000 units. The cost of interest (i) also enters into the equation. Each one-point increase in the interest rate raises costs by $ 3000. Write the new cost equation.

he company’s shipping expenses. Mcfadden 公司在过去几年的装运费用如下： Fixed costs 固定成本 $16,000 Average shipment 平均每次装载量 15 pounds 磅 Cost per pound 每磅成本 $.50 Shown below are McFadden’s budget data for the coming year.公司下一年的预算数据如下所示： Number of units shipped 8,000 Number of sales orders 800 Number of shipments 800 Total sales $1,200,000 Total pounds shipped 9,600 装运件数 8,000 销售订单数量 800 装运次数 800 销售总金额 $1,200,000 总运量（磅） 9,600 McFadden’s expected shipping costs for the coming year are 请问公司下一年度的装运成本的预算额应该是多少？

A.$4,800.

B.$16,000.

C.$20,000.

D.$20,800.

假设一个利润最大化的垄断者的生产产出为800单位，并索取每单位40美元的价格。（1)如果产品的需求

假设一个利润最大化的垄断者的生产产出为800单位，并索取每单位40美元的价格。

(1)如果产品的需求弹性为-2,求生产最后一单位产品的边际成本。

(2)厂商边际成本上的百分比价格加成为多少？

(3)假设生产最后一单位产品的平均成本为15美元，且厂商的固定成本为2000美元。求厂商的利润。

Suppose a profit - maximizing monopolist is producing 800 units of output and is charging a price of $ 40 per unit.

a. If the elasticity of demand for the product is - 2, find the marginal cost of the last unit produced.

b. What is the firm ' s percentage markup of price over marginal cost？

c. Suppose that the average cost of the last unit produced is $ I5 and the firm' s fixed cost is $ 2000. Find the firm' s profit.

一家企业的固定生产成本为5000美元，边际生产成本为常数，为500美元/单位产品。（1)企业的总成本函

一家企业的固定生产成本为5000美元，边际生产成本为常数，为500美元/单位产品。

(1)企业的总成本函数是什么？平均成本呢？

(2)如果企业想使其平均总成本最低，它应该选择非常大的产量还是比较小的产量？解释你的结论。

A firm has a fixed production cost of $ 5000 and a constant marginal cost of production of S 500 per unit produced.

a. What is the firm' s total cost function？ Average cost？

b. If the firm wanted to minimize the average total cost，would it choose to be very large or very small？ Explain.

the fiscal year ended June 30, 2004 ($million):

Assuming the firm uses straight line depreciation, the average age and the average depreciable life of Bao’s fixed assets are closest to:

A. 7 years for average age and 20 years for average depreciable life.

B. 6 years for average age and 14 years for average depreciable life.

C. 6 years for average age and 20 years for average depreciable life.

short run but earn losses if the market price is less than that firm’s average variable cost but greater than the firm’s average fixed cost.()