经原1期中08年经济学原理Ⅰ期中考试一

1、一 的家长每次罚款10元。如果校长采用该建议，那10 。 3（否的一 的家长每次罚款10元。如果校长采用该建议，那10 。 3（否的5、In a competitive market, an increase in the demand for notebooks raises ty notebooksdemanded,butnot DA C D对DDD8、Mikehasspent$500purchasingDDD8、Mikehasspent$500purchasingandrepairinganoldfishingboatwhichheexpectstosell$800 once the r

2、epairs are complete. He t he needs an additional repair, which cost $400,inorder tocomplete the repairs.He cansell the boatas itis nowfor $300.What he Heshouldcuthislossesandtake theHeshouldneversellsomethingfornitHeshouldcompletetherepairsandselltheItdoesntmatterwhichactionhetakes;eisthesameeither9

3、、TwodriversTomandJerryeachdrive uptoa gasion.Before lookingatthe price,anorder.Tomsays,“Idlike10gallonsofgas.”Jerrysays,“Idlike$10ofgas.”WhateachdriverspriceelasticityofDnegativeinfinite；bet cannot deciden1andA11 B11 C11 三、问答题（30分1（6分）3枚，(1) 你能说出他这样做的理由吗？（3分百分之五十的数量，那么只有当邮票的价格上涨超过 50%时（2（Totally 9 k

4、end for s）Pat and Kris are roommates. Besides studying, they leave 12 hours favorite activities: making pizza and brewing root beer. Pat takes 4 hours brewagallonofrootbeer and2hoursto1（6分）3枚，(1) 你能说出他这样做的理由吗？（3分百分之五十的数量，那么只有当邮票的价格上涨超过 50%时（2（Totally 9 kend for s）Pat and Kris are roommates. Besides

5、studying, they leave 12 hours favorite activities: making pizza and brewing root beer. Pat takes 4 hours brewagallonofrootbeer and2hourstomake a pizza.Kristakes6hourstobrewagallonof beerand4hourstomakea What is each roommates opportunity cost of making a pizza? Who has the aking pizza? Who has the c

6、omparative aking pizza? If Pat Kris trade foods with each other, who will trade away pizza in exchange for root beer? Draw each roommates sibilities frontier. If they do not trade with each and each is willing to spend each half of their time for brewing root beer and making respectively.Howmuchroot

7、beerandpizzacanconsume?(2Pat t Kris spendall his timeforbrewingrootbeerandthenhetrade away 2in exchange for Kriss one gallon of root beer. Should Kris accept the deal? Label this on Kriss diagram. Will Pat be willing to trade away gallonofrootbeer?(3zzas in exchange for Kriss Pats opportunity cost o

8、f making a pizza is 1/2 gallon ofroot beer, hecould brew he time (2 hours) it takesher to makea pizza. Kriss opportunitycost of making a is 2/3 gallonsof rootbeer, hecouldbrew2/3 of a he time(4hours) it takesher hecan make wo makea pizza. sanabsolute akingpizza while it takes Krisfourhours.Since Pat

9、sopportunitycost of makingpizza is n Kriss, has a comparative aking pizza. Since s a comparative pizza,shewillzzaandexchange itforroottKrisRootRoot32(QQ)/(Q Q1/5 A 1 0 1 01(PP)/(PP)51 1 P1363Patconsumes3pizzasand1.5gallonsofrootbeer;Krisconsumes1.5pizzasand1gallon of Kris shouldaccept thissince this

10、 dealresults ina betterconsuming combinationofroot andnbefore.ThisisshowninPatconsumes3pizzasand1.5gallonsofrootbeer;Krisconsumes1.5pizzasand1gallon of Kris shouldaccept thissince this dealresults ina betterconsuming combinationofroot andnbefore.ThisisshowninhisfigurebyB.Patwillnotbewillingtotradezzasfor one gal