精品-管理经济学原书第六版课后题答案,第二章答案.pdfVIP

Chapter2:AnswerstoQuestionsandProblems

1.

a.

demandforX(thedemandcurveforXwillshifttotheright).

b.

demandforgoodY(thedemandcurveforYwillshifttotheright).

c.

adecreaseinthedemandforgoodX(thedemandcurveforXwillshifttothe

left).

d.

thatincomeandconsumptionareinverselyrelated.

2.

a.ThesupplyofgoodXwilldecrease(shifttotheleft).

b.

verticallyupbyexactly$1ateachlevelofoutput.

c.ThesupplyofgoodXwilldecrease.Morespecifically,thesupplycurvewill

rotatecounter-clockwise.

d.ThesupplycurveforgoodXwillincrease(shifttotheright).

3.

a.s()()units.

Q=−50+0.5500−530=50

xs()()

b.Noticethatalthough,negativeoutputis

Q=−50+0.550−530=−175

x

impossible.Thus,quantitysuppliediszero.

c.Tofindthesupplyfunction,insertP=30intothesupplyequationtoobtain

s()z.Thus,thesupplyequationis

Q=−50+0.5P−530=−200+0.5P

xxx

s

Q=−200+0.5P.Toobtaintheinversesupplyequation,simplysolvethis

xx

PtoobtainP=400+2Qs.Theinversesupplyfunctionisgraphed

equationfor

xxx

inFigure2-1.

PriceofX

$1,600.0

$1,400.0