[经济学]博弈论-耶鲁大学公开课第一次课电子版

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1、SothisisGameTheoryEconomics159.欢迎来到经济学159博弈论Ifyou'rehereforarthistory,如果你是来上艺术史的you'reeitherinthewrongroomorstayanyway,那你走错教室了不过你不妨留下来maybethisistherightroom;butthisisGameTheory,okay.没准你会喜欢这门课这里是博弈论Youshouldhavefourhandouts;everyoneshouldhavefourhandouts.你们每人都应该有四页讲义人手一份Thereisalegalrele

2、aseform--里面有一张授权书we'lltalkaboutitinaminute--aboutthevideoing.是关于视频采集的我们一会再说这个Thereisasyllabus,whichisapreliminary,it'salsoonline.有一张初步教学大纲网站上也有AndtherearetwogameslabeledGame1andGame2.有两页分别印有游戏1和游戏2的传单CanIgetyoualltolookatGame1andstartthinkingaboutit.大家先浏览下游戏1然后思考一下Andwhileyou'rethinkinga

3、boutit,iamhopingyoucanmultitaskabit.你们一边思考一边听我说I'lldescribeabitabouttheclass我来简单介绍下这门课程andwe'llgetabitofadminunderourbelts.还有这门课程的评分细则Butpleasetryandlookat--somebody'snotlookingatit,请大家看下游戏1我知道有人没看becausethey'reusingitasafanhere--他们用那张纸扇风呢SolookatGame1andfilloutthatformforme,okay?快浏览下游戏1

4、然后填完好吗Sowhileyou'refillingthatout,letmetellyoualittle你们一边写一边听我说bitaboutwhatwe'regoingtobedoinghere.我来简单地介绍一下这门课SowhatisGameTheory?什么是博弈论GameTheoryisamethodofstudyingstrategicsituations.博弈论研究策略形势Sowhat'sastrategicsituation?那什么是策略形势呢Welllet'sstartoffwithwhat'snotastrategicsituation.我们先看看什么

5、不属于策略形势InyourEconomics-inyourIntroEconomicsclassin115or110,在你们经济学基础课115或者110中yousawsomeprettygoodexamplesofsituationsthatwerenotstrategic.应该讲过一些不是策略形势的案例Yousawfirmsworkinginperfectcompetition.比如说自由竞争企业Firmsinperfectcompetitionarepricetakers:这些企业是价格接受者theydon'tparticularlyhavetoworryabout

6、他们不必担心theactionsoftheircompetitors.他们的竞争对手的策略Youalsosawfirmsthatweremonopolists又比如说垄断企业andmonopolistsdon'thaveanycompetitorstoworryabout,垄断企业没有竞争对手sothat'snotaparticularlystrategicsituation.所以这也不是策略形势They'renotpricetakersbuttheytakethedemandcurve.他们不是价格接受者但面对需求曲线Isthislookingfamiliarfors

7、omeofyouwhocanremember对于你们这些学过经济学115的来说doing115lastyearormaybetwoyearsagoforsomeofyou?这些听起来都不陌生吧Everythinginbetweenisstrategic.介于这两种情况之间的就是策略形势Soeverythingthatconstitutesimperfectcompetition也就是说不完全竞争的情况isastrategicsetting.就是策略形势Thinkaboutthemotorindustry,themotorcarindust