微觀經(jīng)濟學(英文)試卷.doc

學習資料收集于網(wǎng)絡，僅供參考內(nèi)蒙古農(nóng)業(yè)大學2011/2012學年第 一 學期微觀經(jīng)濟學課程考試試卷（A）題 號一二三四五總分分 值1520202025100得 分Please print. If the answer is unrecognizable, it will be counted as wrong answer. You should answer in English or Chinese, numbers, or graphs.GradeGrader. Concepts（3 points each, total 15 points）1. Opportunity cost2. Externality3. Deadweight loss4. Competitive market5. Diminishing marginal product Grade Grader . True or False Questions (2 points each，total 20 points)( f ) 1.If apple and orange are substitutes, when price of apple increases, then the demand for orange decreases.( f ) 2.The price elasticity of demand remains constant along a linear demand curve. ( t ) 3.When price ceiling is below equilibrium price in a competitive market, the price ceiling is binding, and there is shortage in the market.( t ) 4.Total surplus is the values to buyers minus the cost to sellers. ( f ) 5. When taxed is levied on the good in a competitive market, the tax revenue got by the government equals the fall in producer and consumer surplus.( f ) 6. If the world price of a good exceeds the domestic price, the country should import the good instead to export it.( t ) 7.In the presence of a negative externality, Qoptimum is therefore larger than the Qmarket.( f ) 8.Price always equals to marginal revenue for all kinds of firms.( t ) 9. Demand curve for a monopoly firm is the market demand curve.( f ) 10.In the long run, monopolistic competitive firms produce at their lowest average total cost. 試卷（A / B） 第 頁（共 頁）Grade Grader . Single Choice Questions (2 points each，total 20 points) ( d ) 1. If the cross-price elasticity of demand for two goods is negative, these two good are?A. Luxury goods.B. Necessities. C. Substitutes.D. Complements.( a ) 2. Although buyers and sellers share the burden of tax together, sellers share more if the good is_A. Food.B. Clothes. C. Housing.D. Entertainment good.( c ) 3.Consumer surplus is the area A. Above the supply curve and below the price.B. Below the supply curve and below the priceC. Below the demand curve and above the priceD. Below the demand curve and below the price( a ) 4.If we double the size of tax under the perfectly competitive market, so the deadweight loss _ A. Is four times as the original one.B. Is twice as the original one.C. Remain the sameD. May increase or decrease. ( b ) 5. Which of the following items is an example of public goods?A. Fishes in the ocean.B. National defense.C. Apples on a households apple tree.D. Hot dogs in a picnic.高高的山 高高的房子 高高的大樹( ) 6. If the production function has the attribute of diminishing marginal returns, the slope of the total cost curve which is associated with the production functionA.B. 雨越下越大。 天越來越黑。Increases when produced quantity increaseC. Decreases when produced quantity increase.D.E. 例：我已經(jīng)長大了。 小樹已經(jīng)發(fā)芽了。Remains the same.F. May be any one mentioned above.（1）春雷跟柳樹（說話），（春雨）給柳樹洗澡了，（春風）給柳樹梳頭，柳樹跟（孩子們）玩耍了，玩著玩著，?。ㄅ笥眩﹤儯ㄩL高）了。( d ) 7. If the marginal cost curve is below the average total cost curve,_. A.B. 大大的西瓜 可愛的小熊 快樂的生日Average total cost increases.C. Average fixed cost increases.D. Average total cost achieves its minimum.E. Average total cost decreases.( b ) 8. If a competitive firm achieve its long-run equilibrium state, A.B. （8）烏鴉看見一個瓶子，瓶子里有水?？墒牵孔永锏乃ú欢啵?，瓶口（又?。?。烏鴉把（小石子）一個一個地放進瓶子里。瓶子里的水（升高）了，烏鴉就喝著水了。Its average total cost achieves its minimum.C.D. 攵 反文旁（敏 故） 犭反犬旁（豬 狗 貓）Marginal cost equals marginal revenue.E. It gets zero economic profit.F.G. 一把尺 一雙手 一個人 一群人 一堆土All the items mentioned above are correct.( a ) 9. The inefficiency of monopoly is caused by_ A. Deficient production of monopoly. B.C. 例：老牛把草吃完了 。 草被老牛吃完了。Overproduction of monopoly.D. Monopolistic profit.E. Monopolistic loss. ( a ) 10.The meaning of “monopolistic” in “monopolistic competition” is _ A. monopolistic competitive firm faces a downward sloping demand curve. B. monopolistic competitive firm can freely enter and exit the market. C. monopolistic competitive firm charges the price as its marginal cost. D. monopolistic competitive firm produce at its efficient scale. Grade Grader . Problems for calculation (total 20 points) 1. The monopolys cost is a function of its output, which is C(Q)=Q2+12, and the monopoly faces the linear inverse demand function: P=24Q (total 10 points)(1) Calculate following items: marginal cost, average fixed cost, average variable cost, average total cost, and marginal revenue (5 points)(2) Calculate profit-maximizing output (2 points) and profit-maximizing price (1 point), determine its economic profit (2 points)2. The following is the demand schedule for consumers of watching two identical baseball games in a city. The baseball field and baseball players for these two teams are freely provided by the baseball league (total 10points)Price (dollars)Quantity demanded60510004200033000240001500006000(1) If it is a perfectly competitive market, determine the price and quantity. (2 points)(2)If the duopoly makes collusion to become a cartel, determine the price, quantity and profit for each firm if the only goal for them is profit maximizing. (3 points)(3)If they fail to make collusion, determine their individual profit if Nash equilibrium is achieved. (3 points)(4)Draw out two teams strategies about their outputs and profits (Note: Use the chart of prisoner dilemma shown in our textbook, please). (2 points)Grade Grader . Short answers items (total 25 points)1. Why firms in a perfectly competitive market produce at their efficient scales when they achieve their long run equilibrium? (5points)完全競爭廠商在長期內(nèi)對全部生產(chǎn)要素的調(diào)整可以表現(xiàn)為兩個方面：一方面表現(xiàn)為廠商進入或退出一個行業(yè)，這也就是行業(yè)內(nèi)企業(yè)數(shù)量的調(diào)整；另一方面表現(xiàn)為廠商對生產(chǎn)規(guī)模的調(diào)整。完全競爭廠商的長期均衡就是通過這兩個方面的調(diào)整而實現(xiàn)的。一、長期內(nèi)廠商的生產(chǎn)調(diào)整及最優(yōu)生產(chǎn)規(guī)模的選擇在長期內(nèi)，如果行業(yè)內(nèi)的單個廠商可以獲得超額利潤，則會吸引其它新的廠商加入到該行業(yè)的生產(chǎn)中來。隨著新廠商的加入，行業(yè)內(nèi)的廠商數(shù)目增加，整個行業(yè)的供給就會增加，市場價格就會下降，而且會一直下降到使單個廠商的超額利潤消失為止。相反，如果行業(yè)內(nèi)的單個廠商的生產(chǎn)是虧損的，則行業(yè)內(nèi)原有廠商中的一部分就會自動退出生產(chǎn)。隨著原有廠商的退出，行業(yè)內(nèi)廠商的數(shù)目就會減少，整個行業(yè)的供給就會減少，市場價格就會上升，而且會一直上升到使單個廠商的虧損消失為止。最后，由于行業(yè)中的每一個廠商都處于一種既無超額利潤又無虧損的狀態(tài)，行業(yè)內(nèi)廠商的進入和退出也就停止了，于是，完全競爭廠商便處于一種長期均衡狀態(tài)。2. When a country allows trade and becomes an exporter o