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1、阅读理解（社会生活类）03七、Howeverwealthywemaybe,wecanneverfindenoughhoursinthedaytodoeverythingwewant.Economicsdealswiththisproblemthroughtheconceptofopportunitycost,whichsimplyreferstowhethersomeone'stimeormoneycouldbebetterspentonsomethingelse.Everyhourofourtimeha
2、savalue.Foreveryhourweworkatonejobwecouldquiteeasilybedoinganother,orbesleepingorwatchingafilm.Eachoftheseoptionshasadifferentopportunitycost—namely,whattheycostusinmissedopportunities.Sayyouintendtowatchafootballmatchbuttheticketsareexpensiveanditwilltak
3、eyouacoupleofhourstogettoandfromthestadium.Whynot,youmightreason,watchthegamefromhomeandusetheleftovermoneyandtimetohavedinnerwithfriends?This—thealternativeuseofyourcashandtime—istheopportunitycost.Foreconomists,everydecisionismadebyknowledgeofwhatonemus
4、tforgo—intermsofmoneyandenjoyment—inordertotakeitup.Byknowingpreciselywhatyouarereceivingandwhatyouaremissingouton,yououghttobeabletomakebetter-informed,morereasonabledecisions.Considerthatmostfamouseconomicruleofall:there'snosuchthingasafreelunch.Evenifs
5、omeoneofferstotakeyououttolunchforfree,thetimeyouwillspendintherestaurantstillcostsyousomethingintermsofforgoneopportunities.Somepeoplefindtheideaofopportunitycostextremelydiscouraging:imaginespendingyourentirelifecalculatingwhetheryourtimewouldbebettersp
6、entelsewheredoingsomethingmoreprofitableorenjoyable.Yet,inasenseit'shumannaturetodopreciselythat—weassesstheadvantagesanddisadvantagesofdecisionsallthetime.Inthebusinessworld,apopularphraseis"valueformoney."Peoplewanttheircashtogoasfaraspossible.However,a
7、notherisfastobtaininganadvantage:"valuefortime."Thebiggestrestrictiononourresourcesisthenumberofhourswecandevotetosomething,sowelooktomaximizethereturnwegetonourinvestmentoftime.Byreadmgthispassageyouaregivingoverabitofyourtimewhichcouldbespentdoingothera
8、ctivities,suchassleepingandeating.Inreturn,however,thispassagewillhelpyoutothinklikeaneconomist,closelyconsideringtheopportunitycostofeachofyourdecisions.58.Accordingtothepassage,theconceptof"opportunitycost"isappli
