IGCSE经济学课件英文版PPT文档格式.ppt
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Clothing?
Defence?
Healthcare?
Roads?
$100bn,Opportunitycost,OpportunitycostisthecostofchoiceWhatwouldyoubuywithUS$10?
HowshouldthegovernmentspendUS$250million?
(Or,shouldthegovernmentcuttaxesbyUS$250million?
)Whatoccupationwillyouchoosewhenyoufinishyourstudies?
HowshouldanewbusinessinvestUS$20million?
Shouldweconservemorenaturalresources?
andwhatarethenextbestalternativesforegone?
Productionpossibilitycurves,AfirmproducingcarsandtrucksWhatistheopportunitycostofproducing20moretrucks?
AneconomyproducingconsumergoodsandcapitalgoodsWhatistheopportunitycostofproducing15moretonnesofconsumergoods?
Productionpossibilitycurves,Productionpossibilitycurves,Productionpossibilitycurves(PPCs)showthemaximumcombinedoutputoftwoormoreproductsafirmoranentireeconomycanproducewithitsavailableresourcesResourcesarebeingusedefficientlyiftheyareproducingtheirmaximumoutputBut,becauseresourcesarelimited,producingmoreofoneproductmeansproducinglessofanotherPPCsarethereforeausefulwayofshowingtheopportunitycostofproducingmoreofoneproductintermsofhowmuchofanothermustbegivenup,IGCSE/OLevelEconomics,2.1Economicsystems,S2,Resourceallocation,Becauseproductiveresourcesarescarcerelativetohumanwantswemustdecide:
Economicsystems,Whoinaneconomydecideswhatgoodsandservicestoproduce,howtoproducethemandwhotoproducethemfor,andhowarethesedecisionsaremade?
Economicsystems,ChinaCuba,NorthKorea,DenmarkFranceItalySwedenUKManydevelopedeconomies,ArgentinaMauritiusNepalParaguay,BahamasSingapore,Themarketeconomicsystem,Privatesectorproducers,Consumers,Goodsandservices,Money,Production,Exchange,Consumption,Inafreemarketeconomicsystemalldecisionsaretakenbyprivatesectororganizationsandindividuals.Thereislittleornoroleforgovernmentorapublicsectorandthereforelittleornotaxationorpublicspending.,Thepricemechanism,Amarketisanysetofarrangementsthatbringstogetheralltheproducersandconsumersofagoodorservicesothattheycanengageinexchange.,Privatefirmsproducegoodsandservicestomaximizetheirprofits,Consumersconsumegoodsandservicestomaximizetheirutility(satisfaction),Asconsumerdemandforaproductrises,Productionbecomesmoreprofitable,soproducersincreaseoutput,Productionbecomeslessprofitable,soproducersreduceoutput,Marketpriceandquantitytraded,MARKETPRICERISES,MARKETPRICEFALLS,Asconsumerdemandforaproductfalls,Whatsgoodaboutthemarketsystem?
AwidevarietyofgoodsandserviceswillbeproducedtosatisfyconsumerwantsFirmsrespondquicklytochangesinconsumerwantsandspendingpatternsTheprofitmotiveoffirmsencouragesthemtodevelopnewproductsandusethemostefficientmethodsofproductionTherearenotaxes,Profitscanbeincreasedbyincreasingsalesand/orreducingcostsofproduction,Ifconsumerdemandisrising,priceswillriseandproductionbecomesmoreprofitable.Entrepreneurswillallocateresourcestotheirmostprofitableuses,Thereisnopublicsectorinatotallyfreemarketeconomicsystem,Howthemarketsystemcanfail,Marketfailure:
whenfreemarketsfailtoproducegoodsandservicesthatareworthwhileorwhenthedecisionsofproducersorconsumersresultinwastefulorharmfulactivities,NATIONALPARK,Howthemarketsystemcanfail,Marketfailure:
whenfreemarketsfailtoproducegoodsandservicesthatareworthwhileorwhenthedecisionsofproducersorconsumersresultinwastefulorharmfulactivities,Themixedeconomicsystem,Inamixedeconomyagovernmentcaninterveneindifferentmarketsinanattempttocorrecttheworstmarketfailures:
ItcanprovideusefulandessentialgoodsandservicesItcanprovidegoodsandservicesforpeopleinthegreatestneedItcanemploypeopleinpublicsectororganizationsandprovidefinancialsupporttoprivatesectorfirmstoboostoutputandemploymentI