Revenue Management for Strategic Alliances with Applications to the Airline Industry VonderMercatorSchoolofManagement,FakultätfürBetriebswirtschaftslehreder UniversitätDuisburg-Essen zurErlangungdesakademischenGrades einesDoktorsderWirtschaftswissenschaft(Dr. rer. oec.) genehmigteDissertation von Michaela Graf aus Tübingen. Referent: Prof. Dr. AlfKimms Korreferent: Prof. Dr. PeterChamoni TagdermündlichenPrüfung: 02.02.2011 Preface ThisdissertationwaswrittenduringmytimeasresearchassistantattheChairofLogisticsandOpera- tionsResearchattheMercatorSchoolofManagement, UniversityofDuisburg-Essen. Iamgratefulto manypeopleandinstitutionsthatsupportedmyproject. FirstofallIwanttothankmysupervisorProf. Dr. AlfKimmsfordrawingmyattentiontothefieldof revenuemanagementandgivingmethechancetowritethisdissertationathischair. Itrulyvaluedhis supportandtheinspiringdiscussionsduringtheentireprocess. Iwouldalsoliketothankmysecond assessorProf. Dr. PeterChamoniforhisinterestinthesubject. MyresearchprojectwasfundedbytheDeutscheForschungsgemeinschaft(DFG)-GrantKI1272/2-1. I deeplyappreciatethesupport. IamindebtedtoallthepeopleattheUniversitythatmadethelastfouryearsbothrewardingandfun. Ihadthepleasuretobepartofagreatresearchteam. InparticularIwouldliketothankmycolleagues, namelySarahBretschneider,DemetÇetiner,Klaus-ChristianMaassen,Dr. MichaelMüller-Bungart,Dr. JuliaSchaaff, StefanieKockerols, MarcKschonsak, Çag˘das¸ Özgür, andNicoleJaschinskiforcreatinga verypositiveatmospherethatIenjoyedverymuchworkinginandtheirvaluablesupportinresearch, lecturing, programming, and organizational work. Besides excellent collaboration at the University, I will always remember our non-academic fun times going to concerts, doings sports, exploring cities by photography walks, and all the great times that we had. Furthermore, I thank my colleagues from otherdivisionsoftheUniversityofDuisburg-Essen.EspeciallyStefanKrebs,MarkusLinden,andJudith SchneiderforwelcomingmeinDuisburg. Thankstoallmyfriendsforallthesupportandencouragement.IspeciallythankLiseLubbersen,Nicole Noack,andSabinePfisterfortakingmymindoffofthingswhenIneededit. I express my gratitude to Elisabeth and Dr. Hubert Saat and the families of their daughters, Kathrin GerwensandBarbaraWohlgemuth,forlettingmepartoftheirfamily. Thankstoourwonderfulnieces Helena,Frieda,andTheresafortheirplayfuljoyandthespectaculartimethatweshare. IparticularlythankmysisterStephanieLangbein,mybrothersJohannesMauzandAlexanderRieder, andmygrandparentsMajaGrafaswellasBärbelandWalterHeitzlerfortheircontinuingencourage- ment. Thankyoufortakingsomuchinterestinmylife. IamdeeplyindebtedtomyparentsGabrieleMauzandHanns-MichaelGrafwithhiswifeDr. Annette Winkler, andmyboyfriendDr. JanSaatfortheireverlastingsupportandlove. Thesecuritytheygive meisirreplaceableandIamverygratefulfortheirconspiringadvicesandunbreakabletrust. Thisbook isdedicatedtothemwithallmyheart. Burladingen/Überlingen,October2010 MichaelaGraf Contents ListofFigures vii ListofTables ix 1 Introduction 1 2 ConceptualFoundationofRevenueManagement 3 2.1 HistoricalDevelopmentofRevenueManagement . . . . . . . . . . . . . . . . . . . . . . . 3 2.2 TheoreticalBasicsofRevenueManagement . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 2.2.1 CharacteristicsofRevenueManagementProblems . . . . . . . . . . . . . . . . . . 6 2.2.1.1 RequirementofExternalFactorIntegration . . . . . . . . . . . . . . . . . 6 2.2.1.2 RestrictedOperationalFlexibilityofCapacity . . . . . . . . . . . . . . . . 7 2.2.1.3 HeterogeneousDemandBehavior . . . . . . . . . . . . . . . . . . . . . . . 8 2.2.1.4 StandardizedProducts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 2.2.2 RevenueManagementInstruments . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 2.2.2.1 Segment-OrientatedPriceDifferentiation. . . . . . . . . . . . . . . . . . . 11 2.2.2.2 Overbooking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 2.2.2.3 CapacityControl . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 3 RemarksonStrategicAlliances 23 3.1 DefiningStrategicAlliances . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23 3.2 ApplicationAreasofRevenueManagementinCombinationwithStrategicAlliances . . . 25 3.2.1 PassengerAirlineIndustry . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25 3.2.2 AirCargoSector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28 3.2.3 PassengerRailroadSector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28 3.2.4 FreightSector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29 3.2.5 TouristSectors. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29 3.2.6 ManufacturingSector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30 3.2.7 MiscellaneousSectors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30 iii CONTENTS 4 CapacityControlwithRealOptions 31 4.1 RemarksonRealOptionTheory . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31 4.2 DeterminationofBookingLimits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32 4.2.1 InteractionBetweenAirlines . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32 4.2.2 DeterministicModelstoCalculateBookingLimits . . . . . . . . . . . . . . . . . . . 34 4.2.3 EMSRHeuristicstoCalculateBookingLimits . . . . . . . . . . . . . . . . . . . . . 38 4.2.4 SimulationofBookingProcesses . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40 4.3 ComputationalStudyfortheOption-BasedProcedures . . . . . . . . . . . . . . . . . . . . 45 4.3.1 TestBedforOption-BasedProceduresAnalysis . . . . . . . . . . . . . . . . . . . . 45 4.3.2 EvaluationoftheOption-BasedProcedures . . . . . . . . . . . . . . . . . . . . . . . 47 5 BookingLimitImprovement 53 5.1 Simulation-BasedOptimization . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53 5.2 BookingLimitImprovementbySimultaneousPerturbationStochasticApproximation . . 54 5.3 ComputationalStudyforOption-BasedProcedurewithSPSA . . . . . . . . . . . . . . . . 57 5.3.1 TestBedforOBP&SPSAProcedureAnalysis . . . . . . . . . . . . . . . . . . . . . . 57 5.3.2 EvaluationoftheOBP&SPSAProcedure . . . . . . . . . . . . . . . . . . . . . . . . 57 6 HeuristicCalculationofBookingLimits 63 6.1 DeterminationofBookingLimitswithGeneticAlgorithm . . . . . . . . . . . . . . . . . . . 63 6.2 ComputationalStudyfortheGeneticAlgorithms. . . . . . . . . . . . . . . . . . . . . . . . 69 6.2.1 TestBedforGeneticAlgorithmAnalysis . . . . . . . . . . . . . . . . . . . . . . . . 69 6.2.2 EvaluationoftheGeneticAlgorithms . . . . . . . . . . . . . . . . . . . . . . . . . . 71 7 CapacityControlwithRealOptionsandTransferPriceOptimization 77 7.1 TransferPricesinStrategicAlliances . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 77 7.2 DeterminationofOptimalTransferPrices . . . . . . . . . . . . . . . . . . . . . . . . . . . . 81 7.2.1 InteractionBefore,During,andAftertheBookingProcess . . . . . . . . . . . . . . 81 7.2.2 NegotiationProcess . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 83 7.3 ComputationalStudyfortheOption-BasedProcedureswithTransferPriceOptimization 90 7.3.1 Test Bed for the Analysis of Option-Based Procedures with Transfer Price Opti- mization . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 93 7.3.2 EvaluationoftheOption-BasedProcedureswithTransferPriceOptimization . . . 94 7.3.2.1 ComparisonofProcedures(RevenueInstances1–4) . . . . . . . . . . . . 95 7.3.2.2 ComparisonofProcedures(RevenueInstances1–8) . . . . . . . . . . . . 103 7.3.2.3 Comparison of Procedures to Genetic Algorithm Procedures (Revenue Instances1–8) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 109 8 ConclusionsandFutureResearch 117 iv CONTENTS A Appendix: ComputationalStudies 121 A.1 ComputationalStudy: DemandInputData . . . . . . . . . . . . . . . . . . . . . . . . . . . 121 A.2 ComputationalStudy: ComputationalStudyOBP&SPSA+Prices. . . . . . . . . . . . . . . 125 Bibliography 135 v List of Figures 2.1 PartitionedBookingLimitsandProtectionLevels(compareLeeandHersh,1993) . . . . . 16 2.2 NestedBookingLimitsandProtectionLevels . . . . . . . . . . . . . . . . . . . . . . . . . . 17 4.1 InteractionbetweenOCandTC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33 4.2 AnIllustrationoftheTwo-AirlineCase . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34 4.3 TheSimulationProcessoftheOperatingCarrier . . . . . . . . . . . . . . . . . . . . . . . . 43 4.4 TheSimulationProcessoftheTicketingCarrier . . . . . . . . . . . . . . . . . . . . . . . . . 44 6.1 GenotypeGeneticAlgorithm1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65 6.2 GenotypeGeneticAlgorithm2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65 6.3 ExampleTwo-PointCrossoverGeneticAlgorithm1 . . . . . . . . . . . . . . . . . . . . . . 68 7.1 InteractionbetweenOCandTCbefore,during,andafterthebookingprocess . . . . . . . 82 7.2 CaseDifferentiationwithFourBookingClasses. . . . . . . . . . . . . . . . . . . . . . . . . 85 7.3 NegotiationProcessoftheOperatingCarrierandtheTicketingCarrier . . . . . . . . . . . 87 7.4 Option-Based+PricesProcedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 89 7.5 OBP&SPSA+PricesProcedure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 90 7.6 OBP&SPSA+Prices(1-4)–PerformanceofProceduresRelativetoExPostOptimalSolu- tions,C=120,DemandScenarios . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 99 7.7 OBP&SPSA+Prices(1-4)–PerformanceofProceduresRelativetoExPostOptimalSolu- tions,C=120,RevenueScenarios . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 102 7.8 OBP&SPSA+Prices(1-8)–PerformanceofProceduresRelativetoExPostOptimalSolu- tions,C=120,DemandScenarios . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 107 7.9 OBP&SPSA+Prices(1-8)–PerformanceofProceduresRelativetoExPostOptimalSolu- tions,C=120,RevenueScenarios . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 110 A.1 OBP&SPSA+Prices(1-4)–PerformanceofProceduresRelativetoExPostOptimalSolu- tions,C=100,DemandScenarios . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 130 A.2 OBP&SPSA+Prices(1-4)–PerformanceofProceduresRelativetoExPostOptimalSolu- tions,C=150,DemandScenarios . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 130 A.3 OBP&SPSA+Prices(1-4)–PerformanceofProceduresRelativetoExPostOptimalSolu- tions,C=100,RevenueScenarios . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 131 vii LISTOFFIGURES A.4 OBP&SPSA+Prices(1-4)–PerformanceofProceduresRelativetoExPostOptimalSolu- tions,C=150,RevenueScenarios . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 131 A.5 OBP&SPSA+Prices(1-8)–PerformanceofProceduresRelativetoExPostOptimalSolu- tions,C=100,DemandScenarios . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 132 A.6 OBP&SPSA+Prices(1-8)–PerformanceofProceduresRelativetoExPostOptimalSolu- tions,C=150,DemandScenarios . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 132 A.7 OBP&SPSA+Prices(1-8)–PerformanceofProceduresRelativetoExPostOptimalSolu- tions,C=100,RevenueScenarios . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 133 A.8 OBP&SPSA+Prices(1-8)–PerformanceofProceduresRelativetoExPostOptimalSolu- tions,C=150,RevenueScenarios . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 133 viii
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