330 aeronautics aeronauticsandstate airlines airportterminals airtravel antitrustlaw argentina attitudes automobiledrivers automobileparking automotive broadbandcommunicationsystems broadcastingrights business businessmanagement cabletelevision cellphoneservicesindustry choiceoftransportation claimsadministration collectivebargaining commercial commercialaeronautics competition computernetworkresources congresses consolidationandmergerofcorporations consumerbehavior consumers'preferences consumersatisfaction copyright corruptpractices cost costcontrol costofoperation costs currencyquestion customerservices dataprocessing deregulation directbroadcastsatellitetelevision directories duhalde e-commerce economicaspects economicaspectsofimperfectcompetition economics eduardoalberto electricalengineering electricpower-plants electricpowerconsumption electricpowerplants electricpowerproduction electricpowersystems electricpowertransmission electricutilities electroniccommerce electroniccommerce) electronics employeefringebenefits employers'liabilityinsurance energydevelopment energyindustries energypolicy engineering environmental environmentalaspects equilibrium(economics) estimates europe europeaneconomiccommunitycountries europeanunioncountries evaluation finance financialcrises financialmanagement forecasting freight freightandfreightage general general(seealsocomputers governmentpolicy harbors healthinsurance heating hospital hospitaladministration hospitals hotels hydroelectricpowerplants imperfectcompetition industrial inlandwatertransportation insurance insurancepremiums international internetadvertising japan lawandlegislation load localtransit longdistancetelephoneservice marketing mathematicalmodels mathematics medicalfees medicare mergers monopolies montana northdakota oecdcountries onlinesocialnetworks passengertraffic peak-loadpricing peakload prevention pricefixing prices pricing privatization prospectivepayment publicutilities radiobroadcasting railroadlaw railroads rateofreturn renewableenergysources research reservationsystems revenuemanagement ridership riskmanagement royalties rulesandpractice ruralhospitals ruraltelecommunication sewagedisposal shipmentofgoods socialaspects tec010030 technology telecommunication telecommunicationpolicy telecommunicationsystems telephone televisionbroadcasting textmessages(cellphonesystems) textmessages(telephonesystems) tk traffic transportation trucking unfaircompetition unitedstates water water-supply waterresourcesdevelopment watersupply waterways workers'compensation wx157g548p1987