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DUEDATE: NAME: CHAPTER4:DEMANDANDELASTICITYWORKSHEET Definitionof ElasticityofDemand : Itisa measureofhowresponsivequantityistoapricechange.The higher the measurethenthe moreresponsive consumerswillbeto achangeinprice. The lower themeasurethenthe lessresponsive consumerswillbeto achangeinprice. Theelasticityofdemand is LOWER(LESS RESPONSIVE) in

DUEDATE: NAME:

CHAPTER4:DEMANDANDELASTICITYWORKSHEET

DefinitionofElasticityofDemand:

Itisa measureofhowresponsivequantityistoapricechange.Thehigherthe measurethenthemoreresponsiveconsumerswillbeto achangeinprice. Thelowerthemeasurethenthe lessresponsiveconsumerswillbeto achangeinprice.

  1. Theelasticityofdemand isLOWER(LESS RESPONSIVE) in the long run because consumers havemore time toadjust.

  1. AnElasticityof1.0 of greater = demand(page110inbook)

  1. AnElasticityofexactly1.0 = demand

  1. AnElasticityofbetween 0 and1.0 = demand

  1. Use the Elasticity formula to calculate values of Elasticity for all the situations below. Change negatives topositives.

STEP1: Theformulaused tocalculatethepercentagechangeinquantitydemanded is:

[QDemand(NEW)-QDemand(OLD)]/QDemand(OLD)

STEP2:Theformulausedto calculatethepercentagechangein priceis:

[Price(NEW)-Price(OLD)]/Price(OLD)STEP3:(STEP1)/ (STEP2)

Price

Quantity

STEP1

% change in quantitydemanded

STEP2

% change inprice

STEP3

PriceElasticityofDemand

Initial

New

Initial

New

25

30

100

40

1.

40

70

120

90

2.

200

220

80

64

3.

50

75

150

135

4.

In eachcaseidentifywhether you woulddescribeitaselastic/unitelastic/inelastic

1.

2.

3.

4.

  1. WhathappenstotheElasticityofDemandiftherearemanysubstitutesforagood?Isitelasticor inelastic?Why?

  1. Giventhedatabelow,calculatetheprice elasticityofdemandwhenthepricechangesfrom $9.00to$10.00.

ANSWER: CHANGEALLNEGATIVENUMBERSTOPOSITIVES

DataforGoodX

Price($)

QuantityDemanded

7.00

200

8.00

180

9.00

150

10.00

110

11.00

60

  1. Is the demand for Good X Elasticor Inelasticbetween $9 and $10? Use the above demand schedule toanswer this.

  1. Whatdoesitmeanforagoodtobeelastic?

  1. Whattypeofdemandwouldtherebe fora goodthathadNOsubstitutes? CircleOne

Elastic Inelastic

  1. Whichwaywouldthedemand curveof GoodXshift ifthepriceofGoodY(acomplementarygood)increased?CircleOne

Left Right

  1. WhathappenstotheDemandCurveofaGoodXifthepriceofGoodY(asubstitutegood)increases?Explainwhythedemand curveforGood Xchanged?

Left Right

  1. Kobe'sfavoritedrinkiscola. Hebuysa12pack fromhislocalsupermarketand hasnoticedthatthepriceoften varies. His monthly demand for cola is shown below: From the information provided in thedemandschedule, drawalabeled demandcurvebelow.

Usethegraphspacetodrawthecurve.Labelthedemandcurve D1.

Kobe'sWeeklyDemandforCola

Price($)

QuantityDemanded

5.00

2

4.50

3

4.00

4

3.50

5

2.50

6

  1. Kobe's drinks cola drinks to give him energy - he loves Dr. Pepper, but sometimes Mr. Pibb (a substitutegood for Dr. Pepper) is on special sale. Given the lower price for Mr. Pibb, a new demand schedule hadto be created for Dr. Pepper. Use the graph space above you created in Question 13 to draw the newdemandcurve. Label thenewdemand curveD2.

DEMANDSCHEDULE

PRICE FORDR.

PEPPER

OLDDEMAND

NEWDEMAND

$5.00

2

1

$4.50

3

2

$4.00

4

3

$3.50

5

4

$2.50

6

5

  1. From the information shown on figure 1 below, construct a demand schedule showing Kobe's monthlydemandforDr. Pepper.

  1. Which way would the demand curve for Good X (an inferior good) shift if your income increased? CircleOne

Left Right

  1. Inthe followingscenariosdescribeifthereisashift toademandcurve forGood X(asuperior good)andstatewhich waythecurvewill shift(Left, Right, orStays theSame)

  1. anincreaseinpriceforGoodX A.
  2. afallincustomer'sincome B.
  3. anincreaseinthepriceofasubstitutegood C.
  4. adecreaseinthepriceof acomplementgood D.

  1. Whydo suppliers wantto createmoreinelasticdemand relationships in theproducts that theysell?

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