【中级宏观经济学题目求解.Supposethatpricesarecompletelyrigid,sothatthenominalandtherealinterestratearenecessarilyequal.Money-marketequilibriumisthereforegivenbyM/P_=L(r,Y).a.Supposethatgovernmentpurchasesincrease,an】

　　中级宏观经济学题目求解

　　.Supposethatpricesarecompletelyrigid,sothatthenominalandtherealinterest

　　ratearenecessarilyequal.Money-marketequilibriumisthereforegivenbyM/P

　　_

　　=L(r,Y).

　　a.Supposethatgovernmentpurchasesincrease,andthattheFederalReserveadjusts

　　themoneysupplytokeeptheinterestrateunchanged.

　　i.Doesthemoneysupplyriseorfall?

　　ii.Whathappenstoconsumptionandinvestment?

　　b.Supposethatgovernmentpurchasesincrease,andthattheFederalReserveadjusts

　　themoneysupplytokeepoutputunchanged.

　　i.Doesthemoneysupplyriseorfall?

　　ii.Whathappenstoconsumptionandinvestment?

　　c.Supposethatgovernmentpurchasesincrease,andthattheFederalReservekeeps

　　themoneysupplyunchanged.

　　i.Doestheinterestrateriseorfall?

　　ii.Whathappenstoconsumptionandinvestment?