资料：Everyoneknowsairlinepricingisbasedonsupplyanddemand.FaresaremoreexpensiveduringpeaktravelseasonslikesummerandtoprimedestinationslikeEuropeancapitals.SoifaflighttoRomecostsmorethanaflighttoMilan,you'dthinkthatdemandforRomemustbehigherorsupplylower. What'spuzzlingisthatyoucanpayahighpricetoagivendestinationbutadramaticallylowerpricefortheexactsameflightifyouagreetogoontoanotherdestination. TakeAlitaliatoRome,forinstance,fortravelinAugust.Around-trip,economyflightdirectlytoRomeleavingJFKat10:05p.m.onAlitalia611onAugust5costs$1,655whenbookedonApril30.Comparethatto$903foraround-trip,economytickettoMilan(stoppinginRome)leavingJFKontheexactsameAlitalia611flightat10:05p.m.onAugust5.SowhyisAlitaliawillingtoflytoRomefor$752lessthanitwouldotherwise,plusgiveyouanextraone-and-a-half-hourflighttoMilan? Airlineshaveincreasedtheirprofitabilityinrecentyearsbysegmentingthemarketforairtravelandchargingcustomersdifferentpricesforthesameproduct.Inthiscase,themarketissegmentedbasedondemandfordirectflights.Airlinesknowmostpeopleprefertheshortestroutetotheirdestination,sotheymakecustomerspayupfortheprivilegeofflyingdirect.(Theyalsomakeitalittlemoreinconvenientifyoudon'tpayupforadirectflight,inordertoencourageyoutoflydirect.) Whenpricesbecomesoobviouslyillogical,itmaybetimetorevisitwhyairticketscan'tbetransferredorresoldjustlikeanyothernormalproduct.Iftheairlinesareentitledtoexploitthefreemarket,shouldn'tcustomersbeallowedtodothesamething? Whatispuzzlingabouttheairlinepricingtotheauthor?
A.Price for the same flight to a nearer destination is higher. B.Prices for different destinations on the same flight are the same. C.Price for the same flight to a farther destination is higher. D.Prices for different destinations on the same flight are different.正确答案A
