宏观全部习题答案

《宏观全部习题答案》由会员上传分享，免费在线阅读，更多相关内容在工程资料-天天文库。

1、AllsolutionsofmacroeconomyChapter1TenPrinciplesofEconomicsQuickQuizzes1.Thefourprinciplesofeconomicdecisionmakingare:(1)peoplefacetradeoffs;(2)thecostofsomethingiswhatyougiveuptogetit;(3)rationalpeoplethinkatthemargin;and(4)peoplerespondtoincentives・Peoplefacetradeoffsbecausetogetonethingthattheyl

2、ike,theyusuallyhavetogiveupanotherthingthattheylike.Thecostofsomethingiswhatyougiveuptogetit,notjustintermsofmonetarycostsbutallopportunitycosts.Rationalpeoplethinkatthemarginbytakinganactionifandonlyifthemarginalbenefitsexceedthemarginalcosts.Peoplerespondtoincentivesbecauseastheycomparebenefitst

3、ocosts,achangeinincentivesmaycausetheirbehaviortochange・2.Thethreeprinciplesconcerningeconomicinteractionsare:(1)tradecanmakeeveiyonebetteroff;(2)marketsareusuallyagoodwaytoorganizeeconomicactivity;and(3)governmentscansometimesimprovemarketoutcomes・Tradecanmakeeveryonebelteroffbecauseitallowscount

4、riestospecializeinwhattheydobestandtoenjoyawidervarietyofgoodsandservices・Marketsareusuallyagoodwaytoorganizeeconomicactivitybecausetheinvisiblehandleadsmarketstodesirableoutcomes・Governmentscansometimesimprovemarketoutcomesbecausesometimesmarketsfailtoallocateresourcesefficientlybecauseofanextern

5、alityormarketpowe匚3.Thethreeprinciplesthatdescribehowtheeconomyasawholeworksare:(1)acountry'sstandardoflivingdependsonitsabilitytoproducegoodsandservices;(2)pricesrisewhenthegovernmentprintstoomuchmoney;and(3)societyfacesashort-runtradeoffbetweeninflationandunemployment.Acountry^standardoflivingde

6、pendsonitsabilitytoproducegoodsandservices,whichinturndependsonitsproductivity,whichisafunctionoftheeducationofworkersandtheaccessworkershavetothenecessarytoolsandtechnology・Pricesrisewhenthegovernmentprintstoomuchmoneybecausemoremoneyincirculationreducesthevalueofmoney,causinginflation.Societyfac

7、esashort-runtradeoffbetweeninflationandunemploymentthatisonlytemporaryandpolicymakershavesomeabilitytoexploitthisrelationshipusingvariouspolicyinstruments・QuestionsforReview1.Examplesoftradeoffsincludetimetradeof