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Assignment 8 with Solutions - Intermediate Macroeconomics Analysis | ECON 402, Assignments of Macroeconomics

Material Type: Assignment; Professor: Wassell; Class: Intermediate Macroeconomics Analysis; Subject: Economics; University: Central Washington University; Term: Unknown 1989;

Typology: Assignments

Pre 2010

Uploaded on 08/19/2009

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CandidateAnswersHomework#8
ECON402Spring2009
1. (Q3p.279)TheprisonerofwarcampdescribedbyRadfordperiodicallyreceivedlargeshipmentsof
cigarettesfromtheRedCrossorothersources.
a. Howdidcigaretteshipmentsaffectthepricelevel(thepricesofgoodsintermsofcigarettes)inthe
POWcamp?
Newcigarettesequatetoahighernominalmoneysupply.Withnocorrespondingchangeinreal
moneydemand,theequilibriumpricelevelmustrise.Conceptually,youhavemorecigarettes
beingusedinthesamenumberoftransactionsasbeforetheshipmentarrival.
b. Onsomeoccasionstheprisonersknewinadvancewhenthecigaretteshipmentsweretoarrive.
Whathappenedtothedemandforcigarettemoneyandthepricelevelinthecampinthedaysjust
beforeananticipatedshipment?
Ifthereisananticipatedshipment,thenpricesareexpectedtoincrease(i.e.,expectedinflationis
positive,albeitbriefly,atsomepointinthefuture).AtthetimeoftheshipmentPOW’swantto
possessfewercigarettesfortransactionspurposestheirrealmoneydemandisreduced.Butthe
realdemandformoneygoesdowntodayinanticipationoflowerdesiredcigaretteholdingslater.
Withafixedsupplyofcigarettes,priceswillincreasetoday.Conceptually,prisonersaccelerate
theirpurchasessoastoendupwithfewerdevaluedcigarettes;thisspikeindemanddrivesprices
up.
2. (Q4p.279)Assumethatpricesandwagesadjustrapidlysothatthemarketsforlabor,goods,andassets
arealwaysinequilibrium.Whataretheeffectsofeachofthefollowingonoutput,therealinterestrate,
andthecurrentpricelevel?
a. Atemporaryincreaseingovernmentpurchases.
Ifthereisatemporaryincreaseingovernmentpurchases,nationalsavingdeclines.Thiscausesthe
realinterestratetoriseforagivenlevelofoutput.Iftherealinterestrateincreases,realmoney
demanddeclines.Consequentlypricesmustrisetoequilibratemoneysupply(unchanged)with
moneydemand(lower).Thenetresultisthatoutputisunchangedandtherealinterestrate
increases,asdoesthepricelevel.
b. Areductioninexpectedinflation.
Whenexpectedinflationfalls,realmoneydemandincreases.Inflationhaslittleornoeffecton
eitheremploymentorsaving/investment(seehandout),consequentlyoutputandtherealinterest
rateareunchanged.Higherrealmoneydemandandunchangedmoneysupplyrequirespricesto
declinetoequatemoneysupplyanddemand.
pf2

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Candidate Answers Homework # ECON 402 – Spring 2009

  1. (Q3 p. 279) The prisoner‐of‐war camp described by Radford periodically received large shipments of cigarettes from the Red Cross or other sources. a. How did cigarette shipments affect the price level (the prices of goods in terms of cigarettes) in the POW camp? New cigarettes equate to a higher nominal money supply. With no corresponding change in real money demand, the equilibrium price level must rise. Conceptually, you have more cigarettes being used in the same number of transactions as before the shipment arrival. b. On some occasions the prisoners knew in advance when the cigarette shipments were to arrive. What happened to the demand for cigarette money and the price level in the camp in the days just before an anticipated shipment? If there is an anticipated shipment, then prices are expected to increase (i.e., expected inflation is positive, albeit briefly, at some point in the future). At the time of the shipment POW’s want to possess fewer cigarettes for transactions purposes – their real money demand is reduced. But the real demand for money goes down today in anticipation of lower desired cigarette holdings later. With a fixed supply of cigarettes, prices will increase today. Conceptually, prisoners accelerate their purchases so as to end up with fewer devalued cigarettes; this spike in demand drives prices up.
  2. (Q4 p. 279) Assume that prices and wages adjust rapidly so that the markets for labor, goods, and assets are always in equilibrium. What are the effects of each of the following on output, the real interest rate, and the current price level? a. A temporary increase in government purchases. If there is a temporary increase in government purchases, national saving declines. This causes the real interest rate to rise for a given level of output. If the real interest rate increases, real money demand declines. Consequently prices must rise to equilibrate money supply (unchanged) with money demand (lower). The net result is that output is unchanged and the real interest rate increases, as does the price level. b. A reduction in expected inflation. When expected inflation falls, real money demand increases. Inflation has little or no effect on either employment or saving/investment (see handout), consequently output and the real interest rate are unchanged. Higher real money demand and unchanged money supply requires prices to decline to equate money supply and demand.

c. A temporary increase in the labor supply. If labor supply rises, full‐employment output also rises. With higher output comes higher saving, leading to a reduction in the real interest rate. Higher output and a lower real interest rate both work to increase real money demand. With a fixed money supply, higher real money demand must be met by a decline in the price level. d. An increase in the interest rate paid on money. The “interest rate paid on money increases” is another way of saying that the expected inflation rate decreases. The macroeconomic response is the same as in part b, above.