DOWNLOAD THE Test Bank for Modern Principles Macroeconomics 4th Edition Cowen
b b b b b b b b b b
Name: Class: Date:
Chapterb2b-bThebPowerbofbTradebandbComparativebAdvantage
1. Tradebcreatesbvaluebbecause:
a. peoplebgetbwhatbtheybwant.
b. rawbmaterialsbarebtransformedbintobfinishedbproducts.
c. peoplebexchangebthingsbtheybdobnotbwantbforbthingsbtheybdo.
d. idlebresourcesbarebputbtobuse.
ANSWER:b c
2. eBaybcreatesbvaluebby:
a. helpingbsellersbtrickbbuyersbintobpurchasingbbrokenbitems.
b. movingbgoodsblikebbrokenblaserbpointersbfrombpeoplebwhobdon'tbwantbthembtobpeoplebwhobdo.
c. helpingbpeoplebwithbthebsamebpreferencesbfindbeachbother.
d. movingbtoysbfrombchildrenbwhobwantbthembtobchildrenbwhobdon't.
ANSWER:b b
3. Davidbsellsbhisbcar,bwhichbhebconsidersbworthless,btobCameronbforb$200.bWhichbofbthebfollowingbstatementsbisbT
RUE?
a. DavidbandbCameronbmustbhavebdifferentbpreferencesbforbthebcar.
b. ThisbtradebdidbnotbcreatebvaluebbecausebCameronbisbbuyingbabcarbthatbDavidbconsidersbworthless.
c. Cameronbisbthebonlybonebmadebbetterboffbbybthebtrade.
d. Davidbisbmadebbetterboffbbybthebtrade,bbutbCameronbisbmadebworseboff.
ANSWER:b a
4. Markbvaluesbhisbdrumbsetbatb$800,bandbEllabvaluesbherbguitarbatb$1,000.bSupposebthatbMarkbtradesbhisbdrumbsetbf
orbElla'sbguitar.
a. ThisbtradebmakesbEllabworseboffbbyb$200.
b. ThisbtradebmakesbMarkbbetterboffbbyb$200.
c. MarkbmustbvaluebElla'sbguitarbforbatbleastb$800,bandbEllabmustbvaluebMark'sbdrumbsetbforbatbleast
$1,000.
d. Thisbtradebdecreasesbtotalbvaluebbybmovingbthebguitarbandbdrumbawaybfrombpeoplebwhobplacedbabhighbv
aluebonbthem.
ANSWER:b c
5. Facilitatorsbofbtradeb(suchbasbPierrebOmidyar,bthebdeveloperbofbeBay):
a. maybbecomebverybrichbsincebtheybarebcreatingbvaluebforbmanybindividuals.
b. findbitbverybhardbtobprofitbfrombtheirbservicesbsincebtheybarebnotbdirectlybinvolvedbinbthebtrades.
c. typicallybprofitbfrombtheirbservicesbonlybifbtheybarebablebtobobtainbgovernmentbpatentbrights.
d. arebusuallybseenbasbtakingbadvantagebofbconsumers.
ANSWER:b a
6. Tradebmakesbpeoplebbetterboffbwhen:
a. everyonebwantsbthebsamebthingsbasbotherbpeople.
b. somebpeoplebareblessbproductivebthanbothers.
CopyrightbMacmillanbLearning.bPoweredbbybCognero. Pageb1
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,DOWNLOAD THE Test Bank for Modern Principles Macroeconomics 4th Edition Cowen
b b b b b b b b b b
Name: Class: Date:
Chapterb2b-bThebPowerbofbTradebandbComparativebAdvantage
c. peoplebcannotbspecializebinbcertainbactivities.
d. peoplebhavebdifferentbpreferences.
ANSWER:b d
7. Eachbofb100bpeoplebreceivesbabrandombitembfrombabgrocerybstorebandbassignsbitbabvaluebbetweenb1b(low)bandb1
0b(high).bTheybtradebthosebitemsbamongbthemselvesbforbitemsbtheybpreferbratherbthanbthosebtheybrandomlybreceiv
edbandbthenbassignbabsecondbvalueb(again,b1btob10)btobthebitembthatbtheybendbupbwithbafterbthebtradingbconcludes.b
Howbwouldbthebsumbofbthosebvaluesbbeforebtradingbcomparebwithbthebsumbafterbtrading?
a. Thebvaluebwouldbstaybthebsamebbecausebnobnewbgoodsbwerebintroduced.
b. Thebvaluebwouldbstaybthebsamebbecausebnobonebhasbabcomparativebadvantage.
c. Afterbtrading,bvaluebwouldbbeblowerbbecausebnobonebcanbspecialize.
d. Afterbtrading,bvaluebwouldbbebhigherbbecausebpreferencesbarebdiverse.
ANSWER:b d
8. Whichbofbthebfollowingbisbleastblikelybabconsequencebofbthebdivisionbofbknowledge?
a. thebdevelopmentbofbthebcomputerbtablet
b. abtotallybself-sufficientbfamilybfarm
c. abnewbdeliverybmethodbforbcancer-fightingbdrugs
d. thebprovisionbofbabnewbbikebpathbinbyourbcommunity
ANSWER:b b
9. Onlybabverybsmallbportionbofbpeoplebwhobusebmicrowavesbknowbhowbtheybwork.bThisbisbanbexamplebof:
a. abproductionbpossibilitybfrontier.
b. divisionbofbknowledge.
c. absolutebadvantage.
d. opportunitybcost.
ANSWER:b b
10. Divisionbofbknowledgebrefersbto:
a. dividingbtasksbintobdifferentbsubtasksbandbhavingbonebpersonbperformballbthesebsubtasks.
b. peopleblearningbdifferentbtasksbinbwhichbtheybspecialize.
c. assigningbonebpersonbtoblearnballbthebdifferentbwaysbtobperformbthebsamebtask.
d. limitingbwhatbeachbpersonbknowsbaboutbanotherbperson.
ANSWER:b b
11. Whichbofbthebfollowingbsituationsbwouldbleadbtobmorebstarvation?
a. abworldbwherebeveryonebgrowsbhisborbherbownbfoodbandbtherebisbnobtrade
b. abworldbwithbtradebandblotsbofbspecialization
c. abworldbwithbimmensebdivisionbofbknowledge
d. abworldbwherebonlybsomebpeoplebspecializebinbfoodbandbeveryonebelsebproducesbsomethingbelse
ANSWER:b a
CopyrightbMacmillanbLearning.bPoweredbbybCognero. Pageb2
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,DOWNLOAD THE Test Bank for Modern Principles Macroeconomics 4th Edition Cowen
b b b b b b b b b b
Name: Class: Date:
Chapterb2b-bThebPowerbofbTradebandbComparativebAdvantage
12. Thebmainbreasonbspecializationbcanbraisebproductivitybisbthat:
a. knowledgebinbhumanbbrainsbisblimited.
b. somebpersonsbhavebmorebknowledgebthanbothers.
c. itbisbalwaysbgoodbtobknowblessbthanbmore.
d. itbisbimpossiblebtoblearnbanythingbwell.
ANSWER:b a
13. Knowledgebincreasesb andbspecializationb totalboutput.
a. education;bdecreases
b. productivity;bincreases
c. perception;bincreases
d. economiesbofbscale;bdecreases
ANSWER:b b
14. Economicbgrowthbinbthebmodernberabisbprimarilybduebtobthe:
a. increasesbinbthebnumberbofbpeople.
b. increasesbinbmoney.
c. definingbofbnationbborders.
d. creationbofbnewbknowledge.
ANSWER:b d
15. Specializationbandbtradebcanb thebperbunitbcostbofbproductionbbecauseb .
a. decrease;bitballowsbforbmorebsmall-scalebproduction
b. decrease;bitbcreatesbeconomiesbofbscalebassociatedbwithblarge-scalebproduction
c. increase;bitbrequiresbmorebexpensive,bspecializedbequipment
d. increase;bmorebexpensiveblaborbisbneeded
ANSWER:b b
16. ThebUnitedbStatesbandbthebEuropeanbUnionbarebgroupsbofbsemi-
independentbstatesbthatbhavebcomebtogetherbunderbanbagreementbwherebybresourcesbcanbtravelbfreelybacrossbborder
sbandbabcommonbcurrencybisbinbuse.bWhichbofbthebfollowingbstatementsbbestbexplainsbhowbthisballowsbforbthebachiev
ementbofbeconomiesbofbscale?
a. Eachbstateborbcountrybcanbnowbtargetblargerbmarketsbandbcanbthusbearnbmorebexportbrevenue.
b. Statesbandbcountriesbnoblongerbhavebtobworrybaboutbbordersbimpedingbtrade.
c. Eachbstateborbcountrybcanbadoptblarge-
scalebproductionbtechniquesbthatballowblowerbperbunitbcostsbofbproduction.
d. Thebremovalbofbtradebbordersbandbabcommonbcurrencybenhancesbtradebbetweenbmemberbstates.
ANSWER:b c
17. Onebofbtheboutcomesbofbspecializationbisbthatbitbleadsbtob ,bwhichb thebaveragebcostbofbproduction.
a. smaller-scalebproduction;blowers
b. smaller-scalebproduction;braises
CopyrightbMacmillanbLearning.bPoweredbbybCognero. Pageb3
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b b b b b b b b b b
Name: Class: Date:
Chapterb2b-bThebPowerbofbTradebandbComparativebAdvantage
c. larger-scalebproduction;braises
d. larger-scalebproduction;blowers
ANSWER:b d
18. Ifbeachbofbusbhadbtobgrowballbofbourbownbfood:
a. civilizationbwouldbcollapsebandbbillionsbofbpeoplebwouldbstarve.
b. webwouldbhavebmorebtimebforbotherbpursuits.
c. peoplebwouldbbebricher,bsincebtheybwouldbnoblongerbhavebtobspendbmoneybonbgroceries.
d. thebtotalbamountbofbknowledgebinbsocietybwouldbincrease,bsincebeveryonebwouldbhavebtoblearnbaboutbf
arming.
ANSWER:b a
19. Ifbinsteadbofbspecializedbdoctorsb(neurologists,bcardiologists,bgastroenterologists,betc.)bwebhadbdoctorsbwhobe
achbknewbthebsamebthingsbaboutballbaspectsbofbmedicine,bitbwouldbbe:
a. betterbbecausebthenbwebcouldbjustbgobtobonebdoctorbwithbnoblossbofbqualitybinbmedicalbcare.
b. betterbbecausebtotalbmedicalbknowledgebinbsocietybwouldbincrease.
c. worsebbecausebthebhumanbbrainbisblimited.
d. worsebbecausebtotalbmedicalbknowledgebinbsocietybwouldbdecrease.
ANSWER:b d
20. RosesbgrownbinbKenyabtravelbtobAmsterdambandbultimatelybtobyourblocalbflowerbshopbbecause:
a. thebWorldbRosebCommissionbcoordinatesbthebdifferentbelementsbofbthebrosebindustry.
b. marketsbcoordinatebthebspecializationbandbtradebnecessarybforbthebflowerbindustrybtobfunction.
c. ofbthebtradebagreementbbetweenbthebgovernmentsbofbKenyabandbAmsterdam.
d. customersbarebwillingbtobpaybmorebforbrosesbthatbpassbthroughbAmsterdam.
ANSWER:b b
21. TradebbarriersblikebthebBerlinbWall:
a. increasedbthebnumberbofbscientistsbandbengineers.
b. addedbbillionsbofbmindsbtobthebglobalbdivisionbofbknowledge.
c. decreasedbinnovationbandbglobalbcooperation.
d. preventedbrestrictivebmonopolisticbpractices.
ANSWER:b c
22. AbrockbcarvingbfrombancientbNorwaybdepictsbtwobidenticalbpeoplebdoingbdifferentbjobsbinbthebsamebboat:bonebu
sesbabbowbtobhuntbwhilebthebotherbpaddles.bHowbdoesbthisbearlybexamplebillustratebthebbenefitsbofbtrade?
a. Onebprefersbtobhunt,bwhilebthebotherbprefersbtobpaddlebthebboat;bthisbisbanbexamplebofbdiversebp
references.
b. Oneblearnsbtobbebverybgoodbatbpaddling,bandboneblearnsbtobbebverybgoodbatbhunting;bthisbisbanbexamplebof
bspecializationbandbdivisionbofbknowledge.
c. Thebpaddlerbisbstrongerbthanbthebhunter,bsobthebpaddlerbsacrificesbablotbbybhunting;bthisbisbanbexamplebo
fbcomparativebadvantage.
CopyrightbMacmillanbLearning.bPoweredbbybCognero. Pageb4
mynursytest.store
b b b b b b b b b b
Name: Class: Date:
Chapterb2b-bThebPowerbofbTradebandbComparativebAdvantage
1. Tradebcreatesbvaluebbecause:
a. peoplebgetbwhatbtheybwant.
b. rawbmaterialsbarebtransformedbintobfinishedbproducts.
c. peoplebexchangebthingsbtheybdobnotbwantbforbthingsbtheybdo.
d. idlebresourcesbarebputbtobuse.
ANSWER:b c
2. eBaybcreatesbvaluebby:
a. helpingbsellersbtrickbbuyersbintobpurchasingbbrokenbitems.
b. movingbgoodsblikebbrokenblaserbpointersbfrombpeoplebwhobdon'tbwantbthembtobpeoplebwhobdo.
c. helpingbpeoplebwithbthebsamebpreferencesbfindbeachbother.
d. movingbtoysbfrombchildrenbwhobwantbthembtobchildrenbwhobdon't.
ANSWER:b b
3. Davidbsellsbhisbcar,bwhichbhebconsidersbworthless,btobCameronbforb$200.bWhichbofbthebfollowingbstatementsbisbT
RUE?
a. DavidbandbCameronbmustbhavebdifferentbpreferencesbforbthebcar.
b. ThisbtradebdidbnotbcreatebvaluebbecausebCameronbisbbuyingbabcarbthatbDavidbconsidersbworthless.
c. Cameronbisbthebonlybonebmadebbetterboffbbybthebtrade.
d. Davidbisbmadebbetterboffbbybthebtrade,bbutbCameronbisbmadebworseboff.
ANSWER:b a
4. Markbvaluesbhisbdrumbsetbatb$800,bandbEllabvaluesbherbguitarbatb$1,000.bSupposebthatbMarkbtradesbhisbdrumbsetbf
orbElla'sbguitar.
a. ThisbtradebmakesbEllabworseboffbbyb$200.
b. ThisbtradebmakesbMarkbbetterboffbbyb$200.
c. MarkbmustbvaluebElla'sbguitarbforbatbleastb$800,bandbEllabmustbvaluebMark'sbdrumbsetbforbatbleast
$1,000.
d. Thisbtradebdecreasesbtotalbvaluebbybmovingbthebguitarbandbdrumbawaybfrombpeoplebwhobplacedbabhighbv
aluebonbthem.
ANSWER:b c
5. Facilitatorsbofbtradeb(suchbasbPierrebOmidyar,bthebdeveloperbofbeBay):
a. maybbecomebverybrichbsincebtheybarebcreatingbvaluebforbmanybindividuals.
b. findbitbverybhardbtobprofitbfrombtheirbservicesbsincebtheybarebnotbdirectlybinvolvedbinbthebtrades.
c. typicallybprofitbfrombtheirbservicesbonlybifbtheybarebablebtobobtainbgovernmentbpatentbrights.
d. arebusuallybseenbasbtakingbadvantagebofbconsumers.
ANSWER:b a
6. Tradebmakesbpeoplebbetterboffbwhen:
a. everyonebwantsbthebsamebthingsbasbotherbpeople.
b. somebpeoplebareblessbproductivebthanbothers.
CopyrightbMacmillanbLearning.bPoweredbbybCognero. Pageb1
mynursytest.store
,DOWNLOAD THE Test Bank for Modern Principles Macroeconomics 4th Edition Cowen
b b b b b b b b b b
Name: Class: Date:
Chapterb2b-bThebPowerbofbTradebandbComparativebAdvantage
c. peoplebcannotbspecializebinbcertainbactivities.
d. peoplebhavebdifferentbpreferences.
ANSWER:b d
7. Eachbofb100bpeoplebreceivesbabrandombitembfrombabgrocerybstorebandbassignsbitbabvaluebbetweenb1b(low)bandb1
0b(high).bTheybtradebthosebitemsbamongbthemselvesbforbitemsbtheybpreferbratherbthanbthosebtheybrandomlybreceiv
edbandbthenbassignbabsecondbvalueb(again,b1btob10)btobthebitembthatbtheybendbupbwithbafterbthebtradingbconcludes.b
Howbwouldbthebsumbofbthosebvaluesbbeforebtradingbcomparebwithbthebsumbafterbtrading?
a. Thebvaluebwouldbstaybthebsamebbecausebnobnewbgoodsbwerebintroduced.
b. Thebvaluebwouldbstaybthebsamebbecausebnobonebhasbabcomparativebadvantage.
c. Afterbtrading,bvaluebwouldbbeblowerbbecausebnobonebcanbspecialize.
d. Afterbtrading,bvaluebwouldbbebhigherbbecausebpreferencesbarebdiverse.
ANSWER:b d
8. Whichbofbthebfollowingbisbleastblikelybabconsequencebofbthebdivisionbofbknowledge?
a. thebdevelopmentbofbthebcomputerbtablet
b. abtotallybself-sufficientbfamilybfarm
c. abnewbdeliverybmethodbforbcancer-fightingbdrugs
d. thebprovisionbofbabnewbbikebpathbinbyourbcommunity
ANSWER:b b
9. Onlybabverybsmallbportionbofbpeoplebwhobusebmicrowavesbknowbhowbtheybwork.bThisbisbanbexamplebof:
a. abproductionbpossibilitybfrontier.
b. divisionbofbknowledge.
c. absolutebadvantage.
d. opportunitybcost.
ANSWER:b b
10. Divisionbofbknowledgebrefersbto:
a. dividingbtasksbintobdifferentbsubtasksbandbhavingbonebpersonbperformballbthesebsubtasks.
b. peopleblearningbdifferentbtasksbinbwhichbtheybspecialize.
c. assigningbonebpersonbtoblearnballbthebdifferentbwaysbtobperformbthebsamebtask.
d. limitingbwhatbeachbpersonbknowsbaboutbanotherbperson.
ANSWER:b b
11. Whichbofbthebfollowingbsituationsbwouldbleadbtobmorebstarvation?
a. abworldbwherebeveryonebgrowsbhisborbherbownbfoodbandbtherebisbnobtrade
b. abworldbwithbtradebandblotsbofbspecialization
c. abworldbwithbimmensebdivisionbofbknowledge
d. abworldbwherebonlybsomebpeoplebspecializebinbfoodbandbeveryonebelsebproducesbsomethingbelse
ANSWER:b a
CopyrightbMacmillanbLearning.bPoweredbbybCognero. Pageb2
mynursytest.store
,DOWNLOAD THE Test Bank for Modern Principles Macroeconomics 4th Edition Cowen
b b b b b b b b b b
Name: Class: Date:
Chapterb2b-bThebPowerbofbTradebandbComparativebAdvantage
12. Thebmainbreasonbspecializationbcanbraisebproductivitybisbthat:
a. knowledgebinbhumanbbrainsbisblimited.
b. somebpersonsbhavebmorebknowledgebthanbothers.
c. itbisbalwaysbgoodbtobknowblessbthanbmore.
d. itbisbimpossiblebtoblearnbanythingbwell.
ANSWER:b a
13. Knowledgebincreasesb andbspecializationb totalboutput.
a. education;bdecreases
b. productivity;bincreases
c. perception;bincreases
d. economiesbofbscale;bdecreases
ANSWER:b b
14. Economicbgrowthbinbthebmodernberabisbprimarilybduebtobthe:
a. increasesbinbthebnumberbofbpeople.
b. increasesbinbmoney.
c. definingbofbnationbborders.
d. creationbofbnewbknowledge.
ANSWER:b d
15. Specializationbandbtradebcanb thebperbunitbcostbofbproductionbbecauseb .
a. decrease;bitballowsbforbmorebsmall-scalebproduction
b. decrease;bitbcreatesbeconomiesbofbscalebassociatedbwithblarge-scalebproduction
c. increase;bitbrequiresbmorebexpensive,bspecializedbequipment
d. increase;bmorebexpensiveblaborbisbneeded
ANSWER:b b
16. ThebUnitedbStatesbandbthebEuropeanbUnionbarebgroupsbofbsemi-
independentbstatesbthatbhavebcomebtogetherbunderbanbagreementbwherebybresourcesbcanbtravelbfreelybacrossbborder
sbandbabcommonbcurrencybisbinbuse.bWhichbofbthebfollowingbstatementsbbestbexplainsbhowbthisballowsbforbthebachiev
ementbofbeconomiesbofbscale?
a. Eachbstateborbcountrybcanbnowbtargetblargerbmarketsbandbcanbthusbearnbmorebexportbrevenue.
b. Statesbandbcountriesbnoblongerbhavebtobworrybaboutbbordersbimpedingbtrade.
c. Eachbstateborbcountrybcanbadoptblarge-
scalebproductionbtechniquesbthatballowblowerbperbunitbcostsbofbproduction.
d. Thebremovalbofbtradebbordersbandbabcommonbcurrencybenhancesbtradebbetweenbmemberbstates.
ANSWER:b c
17. Onebofbtheboutcomesbofbspecializationbisbthatbitbleadsbtob ,bwhichb thebaveragebcostbofbproduction.
a. smaller-scalebproduction;blowers
b. smaller-scalebproduction;braises
CopyrightbMacmillanbLearning.bPoweredbbybCognero. Pageb3
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b b b b b b b b b b
Name: Class: Date:
Chapterb2b-bThebPowerbofbTradebandbComparativebAdvantage
c. larger-scalebproduction;braises
d. larger-scalebproduction;blowers
ANSWER:b d
18. Ifbeachbofbusbhadbtobgrowballbofbourbownbfood:
a. civilizationbwouldbcollapsebandbbillionsbofbpeoplebwouldbstarve.
b. webwouldbhavebmorebtimebforbotherbpursuits.
c. peoplebwouldbbebricher,bsincebtheybwouldbnoblongerbhavebtobspendbmoneybonbgroceries.
d. thebtotalbamountbofbknowledgebinbsocietybwouldbincrease,bsincebeveryonebwouldbhavebtoblearnbaboutbf
arming.
ANSWER:b a
19. Ifbinsteadbofbspecializedbdoctorsb(neurologists,bcardiologists,bgastroenterologists,betc.)bwebhadbdoctorsbwhobe
achbknewbthebsamebthingsbaboutballbaspectsbofbmedicine,bitbwouldbbe:
a. betterbbecausebthenbwebcouldbjustbgobtobonebdoctorbwithbnoblossbofbqualitybinbmedicalbcare.
b. betterbbecausebtotalbmedicalbknowledgebinbsocietybwouldbincrease.
c. worsebbecausebthebhumanbbrainbisblimited.
d. worsebbecausebtotalbmedicalbknowledgebinbsocietybwouldbdecrease.
ANSWER:b d
20. RosesbgrownbinbKenyabtravelbtobAmsterdambandbultimatelybtobyourblocalbflowerbshopbbecause:
a. thebWorldbRosebCommissionbcoordinatesbthebdifferentbelementsbofbthebrosebindustry.
b. marketsbcoordinatebthebspecializationbandbtradebnecessarybforbthebflowerbindustrybtobfunction.
c. ofbthebtradebagreementbbetweenbthebgovernmentsbofbKenyabandbAmsterdam.
d. customersbarebwillingbtobpaybmorebforbrosesbthatbpassbthroughbAmsterdam.
ANSWER:b b
21. TradebbarriersblikebthebBerlinbWall:
a. increasedbthebnumberbofbscientistsbandbengineers.
b. addedbbillionsbofbmindsbtobthebglobalbdivisionbofbknowledge.
c. decreasedbinnovationbandbglobalbcooperation.
d. preventedbrestrictivebmonopolisticbpractices.
ANSWER:b c
22. AbrockbcarvingbfrombancientbNorwaybdepictsbtwobidenticalbpeoplebdoingbdifferentbjobsbinbthebsamebboat:bonebu
sesbabbowbtobhuntbwhilebthebotherbpaddles.bHowbdoesbthisbearlybexamplebillustratebthebbenefitsbofbtrade?
a. Onebprefersbtobhunt,bwhilebthebotherbprefersbtobpaddlebthebboat;bthisbisbanbexamplebofbdiversebp
references.
b. Oneblearnsbtobbebverybgoodbatbpaddling,bandboneblearnsbtobbebverybgoodbatbhunting;bthisbisbanbexamplebof
bspecializationbandbdivisionbofbknowledge.
c. Thebpaddlerbisbstrongerbthanbthebhunter,bsobthebpaddlerbsacrificesbablotbbybhunting;bthisbisbanbexamplebo
fbcomparativebadvantage.
CopyrightbMacmillanbLearning.bPoweredbbybCognero. Pageb4
mynursytest.store
