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1、LiLiTangOfficenumber:2402Consultationtime:12:30–1:00pm,Tues.&Wed.平时成绩:20%(课堂测验,平时作业,出勤率,课堂表现)期末考试:80%出勤:如有特殊情况不能上课,需向老师请假并说明理由,否则当旷课处理。一学期旷课3次及以上者，平时成绩为零。课堂测验：不定时。1PRINCIPLESOFFOURTHEDITIONTenPrinciplesofEconomicsCHAPTER1TENPRINCIPLESOFECONOMICSInthischapter,lookfortheanswerstothesequest
2、ions:Whatkindsofquestionsdoeseconomicsaddress?Whataretheprinciplesofhowpeoplemakedecisions?Whataretheprinciplesofhowpeopleinteract?Whataretheprinciplesofhowtheeconomyasawholeworks?CHAPTER1TENPRINCIPLESOFECONOMICSWhatEconomicsIsAllAboutScarcity:thelimitednatureofsociety’sresources.Economi
3、cs:thestudyofhowsocietymanagesitsscarceresources,e.g.howpeopledecidewhattobuy, howmuchtowork,save,andspendhowfirmsdecidehowmuchtoproduce, howmanyworkerstohirehowsocietydecideshowtodivideitsresourcesbetweennationaldefense,consumergoods,protectingtheenvironment,andotherneeds0CHAPTER1TENPRI
4、NCIPLESOFECONOMICS...ThewordeconomycomesfromaGreekwordfor“onewhomanagesahousehold.”Economy...AsocietyLikeahousehold,asocietyfacesmanydecisions.Asocietymustdecidewhatjobswillbedoneandwhowilldothem.Itneedssomepeopletogrowfood,otherpeopletomakeclothing,andstillotherstodesigncomputersoftware
5、.AsocietyOncesocietyhasallocatedpeople(aswellasland,buildings,andmachines)tovariousjobs,itmustalsoallocatetheoutputofgoodsandservicesthattheyproduce.Itmustdecidewhowilleatcaviarandwhowilleatpotatoes.ItmustdecidewhowilldriveaPorscheandwhowilltakethebus.0TheprinciplesofHOWPEOPLE MAKEDECISI
6、ONSCHAPTER1TENPRINCIPLESOFECONOMICSHOWPEOPLEMAKEDECISIONSAlldecisionsinvolvetradeoffs.Examples:Goingtoapartythenightbeforeyourmidtermleaveslesstimeforstudying.Havingmoremoneytobuystuffrequiresworkinglongerhours,whichleaveslesstimeforleisure.Protectingtheenvironmentrequiresresourcesthatco
7、uldotherwisebeusedtoproduceconsumergoods.Principle#1:PeopleFaceTradeoffs0CHAPTER1TENPRINCIPLESOFECONOMICS“Thereisnosuchthingasafreelunch!”Principle#1:PeopleFaceTrade-offs.CHAPTER1TENPRINCIPLESOFECONOMICSMakingdecisionsrequirestrading offonegoalagainstanother.Principle#1:P
