英语管理经济学+典型题练习.docx

1、英语管理经济学+典型题练习Chapter 9课后练习：1、2、3、6、10 applied problem：2The next 9 questions refer to the following:The price of capital (r) is $20.1. What is the price of labor (w)?a. $20b. $30c. $25d. $35e. none of the above2. What combination of labor (L) and capital (K) can produce 5,000 units of output at lowes

2、t cost?a. 90K, 60Lb. 110K, 10Lc. 42K, 52Ld. 60K, 20Le. 10K, 110L3. What is the lowest possible cost of producing 5,000 units of output?a. $1,800b. $2,400c. $2,600d. $1,400e. $3,0004. At the optimal combination of inputs for producing 14,000 units of output, what is the marginal rate of technical sub

3、stitution?a. 2.5b. 0.67c. 1.5d. 0.80e. impossible to tell from the graph5. If, at the optimal combination of inputs for producing 14,000 units of output, the marginal product of capital is 40, what is the marginal product of labor?a. 60b. 40c. 27.67d. 80e. impossible to tell from the graph6. A publi

4、shing house is using 400 printers and 200 printing presses to produce books. The printers wage rate is $20 and the price of a printing press is $100. The last printer added 20 books to total output, while the last printing press added 50 books to total output. The publishing housea. is using the cos

5、tminimizing combination of printers and printing presses. b. should use more printers because they are cheaper than printing presses.c. should use more printing presses because they are more productive than printers. d. could produce the same number of books at a lower cost by using more printing pr

6、esses and fewer printers.e. could produce the same number of books at a lower cost by using more printers and fewer printing presses.7. A sofa manufacturer currently is using 50 workers and 30 machines to produce 5,000 sofas a day. The wage rate is $200 and the rental rate for a machine is $1,000. A

7、t these input levels, another worker adds 200 sofas, while another machine adds 200 sofas. If the firm uses 49 workers and 31 machines instead, then its a. cost will be unchanged, and its output will decrease by 500 units. b. cost will be unchanged, and its output will increase by 300 units. c. cost

8、 will be unchanged, and its output will increase by 500 units. d. output will be unchanged, and its cost will increase by $800. e. none of the above8. In the long runa. all inputs are fixed.b. a firm is making the optimal input choice when the marginal rate of technical substitution is equal to the

9、input price ratio.c. the expansion path shows how the input marginal products change as the firms output level changes.d. both a and be. none of the aboveThe next 3 questions refer to the following:9. As you move from point A to point B,a. output is unchanged. b. cost is unchanged. c. the rate at wh

10、ich the firm can substitute labor for capital while holding output constant decreases.d. both a and be. both a and cFollowing is a firms expansion path. The price of capital is $5 per unit; the price of labor is $2 per unit.Optimal Input ChoiceUnits of Output102030Units of Capital 6 813Units of Labo

11、r 5102010. When output is 30 units, what is longrun total cost? a. $60 b. $105 c. $150 d. $260 e. none of the above11. When output is 20 units, what is longrun average cost? a. $2 b. $3.50 c. $4 d. $4.50 e. none of the above12. Economies of scale exist whena. total cost decreases as output increases

12、. b. long-run average cost decreases as output increases. c. marginal cost decreases as output increases. d. fixed cost decreases as output increases.Answer key: BDACA EDBEB EBChapter 8课后练习 11版 2、3、6、9、11、13 一、 in the blanks in the table below and answer the next 4 questions:Units of LaborTotal Prod

13、uctAverage ProductMarginal Product1234567_66_78_20_16_10_30_10_1 In the above table, the average product of labor when 4 units of labor are employed isa. 22.b. 20.c. 19.d. 16.2. In the above table, the marginal product of the fifth unit of labor isa. 16. b. 10. c. 4. d. 2.3. In the above table, dimi

14、nishing returns begin with the a. first unit of labor. b. third unit of labor. c. fourth unit of labor. d. sixth unit of labor.4. In the above table, marginal product is negative when _ units of labor are employed. a. 5 units of labor are employed. b. 6 units of labor are employed. c. 7 units of lab

15、or are employed. d. both b and c. 5. Suppose you run a pizza shop and currently have two employees. If you hire a third employee, your output of pizzas per day rises from 55 to 65. If you hire a fourth employee, output rises to 80 per day. A fifth and sixth employee would cause output to rise to 90

16、and 95 per day, respectively. Pick the correct statement: a. Diminishing returns set in with the hiring of the fourth worker.b. Diminishing returns set in with the hiring of the fifth worker.c. Diminishing returns set in with the hiring of the sixth worker.d. Diminishing returns set have not yet set

17、 in because output is still increases.The next 6 questions refer to the following:OutputTotal Cost 0 50100150200$ 300 800 1050 1650 24006. What is total variable cost when 100 units of output are produced? a. $5 b. $10.50 c. $105 d. $1050 e. none of the above7. What is average fixed cost when 150 un

18、its of output are produced? a. $2 b. $9 c. $11 d. $16.50 e. none of the above8. What is average variable cost when output is 200?a. $2.00b. $12.00c. $10.50d. $240e. $210questions refer to the following:The following graph shows the marginal and average product curves for labor, the firms only variab

19、le input. The wage for labor is $2,800. Fixed cost is $160,000.9. At what output does the firm reach minimum average variable cost?a. 7,400b. 8,000 unitsc. 100 unitsd. 6,000e. 60010. What is AVC at its minimum?a. $80b. $100c. $8d. $50e. $3511. When the firm uses 40 units of labor, how much output do

20、es it produce?a. 1,600 unitsb. 400 unitsc. 4,000 unitsd. 2,800 unitse. none of the above12. When the firm uses 40 units of labor, what is AVC at this level of output?a. $120b. $400c. $40d. $70e. $8613. When the firm uses 40 units of labor, what is average total cost at this output?a. $140b. $40c. $7

21、0d. $170e. none of the aboveAnswer key: CCBDB EACBE ADDChapter 6课后练习：11版 1、2、6、10、12、15 The next 8 questions refer to the following table showing a demand schedule:PriceQuantity demanded$2001000 1501400 10018001. If price falls from $200 to $150, what is the elasticity of demand over this range?a. 0

22、.625b. 1.0c. 1.17d. 2.5e. 3.02 As output increases from 1,000 to 1,400 what is marginal revenue?a. $25b. $50c. $400d. $25e. $753. If price falls from $200 to $150,a. arrows representing the price and quantity effects both point down.b. an arrow representing the price effect points down and is longer

23、 than an arrow for the quantity effect.c. an arrow representing the price effect points down and is shorter than an arrow for the quantity effect.d. arrows representing the price and quantity effects both point up.e. total revenue moves in the same direction as the arrow representing the price effec

24、t.Then next few questions refer to the following figure:4. When price is $15 and quantity demanded is 1,000, what is the point elasticity of demand?a. 3b. 1/3c. 1d. 5e. 2/35. What is the equation for marginal revenue?a. MR = 4,000 0.005Pb. MR = 4,000 200Qc. MR = 4,000 200Pd. MR = 20 0.01Qe. MR = 20

25、200Q 6. When quantity demanded is 1,000, what is marginal revenue?a. $15b. $7.50c. 0d. $10e. $107. Use the figure to calculate the income elasticity of demand when income increases from $25,000 to $30,000:a. 1.0b. 0.1818c. 0.1818d. 1.5e. 1.28. If the quantity of gidgets demanded increases when the p

26、rice of gadgets decreasesa. gidgets and gadgets are substitutes.b. gidgets and gadgets are complements.c. gidgets are normal goods, while gadgets are inferior goods.d. gadgets are normal goods, while gidgets are inferior goods.9. The demand for good X will be more elastic than the demand for good Y

27、whena. good X has fewer substitutes than good Y.b. good X accounts for a larger percentage of a typical consumers budget than good Y.c. consumers have more time to adjust to a change in the price of good X than they have time to adjust to a change in the price of good Y.d. both b and ce. all of the

28、above10. The point elasticities of demand for D1, D2, and D3 at a price of $5 are _, _, and _, respectively.a. 1.4; 0.2; 1.4b. 0.71; 5; 0.71c. 1.4; 0.2; 5d. 12; 6; 12e. 0.0833; 0.1667; 0.0833 11. At what prices are demand curves D1, D2, and D3 unitary elastic?a. $5; $5; $5; respectivelyb. $17; $6; $

29、5; respectivelyc. $6; $3; $6; respectivelyd. $1; $1; $1; respectivelyAnswer key: cacad dabdb cChapter 2课后练习：11版 6、11、12、14、15、171. Which of the following would increase the supply of corn? a. an increase in the price of pesticides(杀虫剂) b. a decrease in the demand for corn c. a fall in the price of c

30、orn d. a severe drought(严重干旱) in the corn belte. a decrease in the price of wheat2. When Sonoma Vineyards reduces the price of its Cabernet Sauvignon from $15 a bottle to $12 a bottle, the result is an increase in a. the demand for this wine. b. the supply of this wine. c. the quantity of this wine demanded. d. the quantity of this wine supplied.Use the following general linear demand relation to answer questions 36 through 41:where P is the price of good X, M is income, and is the price of a related good, R.3.