资讯性激励补偿和缓冲库存的选择外文翻译.docx
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资讯性激励补偿和缓冲库存的选择外文翻译.docx
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资讯性激励补偿和缓冲库存的选择外文翻译
外文文献翻译译文
一、外文原文
原文:
Informativeness,IncentiveCompensation,andtheChoiceofInventoryBuffer
Baiman,Stanley;Netessine,Serguei;Saouma,Richard
Mostoftheagencytheoryworkinmanagerialaccountinghasstudiedtherelationbetweenperformancemetricpropertiese.g.,informativeness,precision,congruity_andoptimalincentivecompensation,holdingfixedthefirm’sotherorganizationaldesigndecisions_e.g.,hierarchicalstructure,jobassignment,productiontechnology_.However,byholdingfixedtheseotherorganizationaldesignchoices,onecannotstudywhetherandhowtheyaffecttheperformancemetricproperties.AsHemmer_1998,321–322_notes,“thevalueofaperformancemeasureisdeterminednotsimplybyitscongruityandprecisionbutbyitsinfluenceontheoptimalorganizationaldesignMuchoftherecenttheoreticalaccountingliteraturehaslargelyignoredcomplementaritiesbetweenperformancemeasuresandorganizationaldesign.”
Inthisstudy,weexpandonHemmer’s_1998_observationbystudyinghowtheinformativenessandincentivepropertiesofaperformancemetricareinfluencedbyoneofthefirm’sorganizationaldesignchoices—thesizeofitsinventorybuffers.Theintroductionofjust-in-time_JIT_and,moregenerally,leanmanufacturinghasledtoanincreasedemphasisoncontrollingandreducinginventorylevels.Managerialaccountinghasrespondedtothisreductionininventorywithnewcostingtechniquessuchasbackflushcosting_Horngrenetal.2008_.However,weshowthatthechoiceofinventorybuffershasamoresubtleeffectonthedesignofthemanagerialaccountingsystem,inthatitaffectstheinformativenessofperformancemetricsproducedbythemanagerialaccountingsystem.
Similartoourmodel,Hemmer_1995,1998_andGietzmannandHemmer_2002_examinehowdifferentworkflowarrangementsbetweenagentsaffecttheinformationavailableforcontracting,andtheincentivesfacingagents.Ourworkisdistinctfromthesemodelsthatdonotconsiderbuffersizeasoneoftheprincipal’schoicevariables.Nagaretal._2009_examinetheroleofinventorybuffersinagencyproblems,althoughunlikeourmodel,intheirsettingbuffersarefilledbyagentsinordertosignalprivateinformationandbuffersizeisnotachoicevariable.Allesetal._1995_dofocusontheeffectthatthechoiceofbuffersizecanhaveontheinformativenessofperformancemetrics.Themajordifferencebetweenourworkandtheirsisthattheydonotformallymodelhowbuffersaffectperformancemetrics,butinsteadassumeamonotonicrelation.Incontrast,weformallymodeltheinventoryprocessandderiveanon-monotonicrelationbetweenbuffersizeandtheinformativenessoftheagent’sperformancemetric.
Themodelconsistsofasingle-periodandafirmcomprisedofarisk-neutralprincipalandagent.Contractingtakesplaceatthestartoftheperiodwhentheagentishiredtosetupaworkstationtoprocessincomingintermediateunits_e.g.,testcompletedcomputersorweldautomotivechassis_.Theintermediateunitsarrivestochasticallyintotheworkstation’sincominginventorybufferatacommonlyknown,meanarrivalrateof_.Thebufferhascapacityb_N,allowingamaximumofb_1unitstobeheldinfrontoftheworkstationwhiletheworkstationprocessesoneunit.Ifanintermediateunitarrivesandthebufferisnotfull,thentheunitisaddedtotheinventory.However,ifthebufferisfull,thenblockingoccursandintermediateunitsceasearrivinguntilthereisspaceinthebuffer,whereupontheintermediateunitsbeginarrivingatthesamestochasticrateasbefore.
OurassumptionsregardingarrivalandprocessingratesfollowthestandardM/M/1/bqueuingmodelwithfinitebuffersusedintheoperationsmanagementliterature.7Notethatwhilewearemodelingasingle-periodinthattheagentchooseshissetupeffortonlyonceatthestartoftheperiod,weanalyzethestochasticevolutionoftheworkstation’sthroughputovertheentireperiod.Thetransientbehaviorofthroughputinqueuingsystemswithfinitebufferscannotbedescribedanalytically,althoughthesteady-statebehaviorcanbedescribedinclosedform.8Asaresult,theoperationsmanagementliteraturetypicallyusessimulationstoanalyzethetransientbehaviorofqueuingmodelswithfinitebuffersandclosed-formanalysistoexaminesteady-statebehavior.Incontrast,agencymodelshaveemphasizedrewardingtransientbehavior,butsimplifytheproductionprocess_e.g.,usingtheLENmodel_toachieveclosed-formsolutions.9Inordertoincorporatestochasticintermediateunitarrivalrates,stochasticprocessingrates,andfiniteinventorybuffersinouranalysis,wefocusontheproblem’ssteady-state.Thatis,weassumethattheprincipalisinterestedinmaximizinghersteady-stateexpectedprofitandthattheagentselectshisefforttomaximizehissteady-stateexpectedutility.10Thisisareasonableapproximationif,asweassume,theproductionprocessreachessteady-statefairlyquickly.Ourassumptionthattheagent’seffortisexpendedinsettinguptheworkstationbeforeproductionbegins,ratherthanmanagingtheproductionprocessasitevolves,isalsoconsistentwithouremphasisonthesteady-statebehavioroftheworkstation.Anexampleofourmodeledsettingisaroboticlinethatweldsautomotivechassis.Theagent’smaintaskistoprogramthespot-weldingrobots.Thistaskinvolvesidentifyingtheoptimalpositionofthechassis,identifyingtheoptimalpositionoftheroboticarms,andmakingsurethatrobotpathsdonotcrosseachotherorthechassisitself_sothatnothingisdamagedintheprocess_whileensuringthatweldingisdoneintheleastpossiblenumberofsteps.Allofthisplanningandprogrammingsetupisdoneoncebytheagentatthebeginningoftheshiftandthereafter,aslongastheworkstationisincontrol,theagentdoesnotneedtointervene.Clearly,theactionsoftheagentinprogrammingtherobotsaffectthetimeittakestoweldthechassis_onaverage_,buttheagentdoesnotreprogramtherobotonceproductionhasbegun.
Mostofthetimetheyalsohaveahighdegreeofeducationorexpertise.Theyincludeanywherefromaquartertoathirdoftheworkforce,butnoteveryonewhousesknowledge.Ifyouarediggingditches,youmayhavesomeknowledgeonthejob,butit'snottheprimarypurposeofwhatyoudo.
Arecompaniesdoingagoodjobofmanagingandimprovingtheperformanceofknowledgeworkers?
They'renot.WhatmostorganizationsdoisHSPALTA:
Hiresmartpeopleandleavethemalone.We'vespentalotofeffortrecruitingknowledgeworkersandassessinghowcapabletheymightbebeforewehirethem.Butoncethey'rehiredwedon'tdoalottoimprovetheirperformance.Processimprovementhasmostlybeenforotherworkers:
transactionalworkers,manufacturingworkers,peopleincallcenters.Alltheseriousapproachestoimprovingworkhavelargelyescapedknowledgework.
Weletknowledgeworkersgetawaywithsayingthere'snoprocesstotheirwork,thateverydayisdifferent.Wedon'tmeasuremuchofanythingaboutknowledgework.
Ifwedon'tmeasureknowledgework,whydoyouthinkthere'sroomtoimproveknowledgeworkerproductivityandperformance?
It'saprettywell-informedhunch.Peopleimproveprocessesallthetime;theyjusthaven'tdoneitwithknowledge-workprocessesasmuch.It'sanextrapolationofthesamelogicinotherwork,thatprocessescanbeimproved.
Hereisonenumberthatindicatesperformanceandproductivitycanbeimproved:
IDCfoundthat1,000knowledgeworkerscanloseasmuchas$6millionayearjustsearchingfornonexistentdata,orrepeatingworkthathasalreadybeendone.Isitpossibleeveryknowledgeworkerisworkingtohisorherpotential?
It'spossible,butunlikely.Wecangetalotbetteratimprovingtheirperformance.
Whyhasn'tknowledgemanagementhelpedmoreintheefforttoimproveknowledge-workerperformanceandproductivity?
Knowledgemanagementwasanearlyattempttointerveneinknowledgework.Forthemostpart,itwasn'tparticularlysuccessful,becausewedidn'tlookcloselyathowknowledgeworkersdidtheirwork.Wetriedtobetoobroadinourfocus.
Mostorganizationssimplycreatedonebigrepositoryforallknowledgeandallworkers.
Theonlywaywecangetpeopletouseknowledgeonthejobistounderstandhowtheydotheirjobs,andthenfigureoutsomewaytoinjectknowledgeintothecourseoftheirday-to-daywork,notmakeitaseparatethingyouhavetoconsultwhenyouneedknowledge.
Wehavetobemuchmoretargetedinapproachingknowledgemanagement.Wehavetotargetaspecificjob.Andthebestwayistousetechnologytobaketheknowledgeintothejob.
Notethatthemeanarrivalrateofincomingintermediateunitsandthereforethemaximummeanthroughputis_.However,iftheprincipalinducedtheagenttochooser__/_1_h_sothattheworkstationwassettoprocesstheintermediateunitsatthesameaveragerateatwhichtheyarrived,thentheinstantaneousprobabilityofstarvingtheworkstationwouldbeps=11+b_0,whichinturnwouldlimittheworkstation’smeansteady-statethroughputtoK=_b1+b_.Thatis,inducingtheagenttosettheworkstationtoprocesstheintermediateunitsatthesameaveragerate
atwhichtheyarrivewouldsignificantlylimitsteady-statethroughputandinduceanon-trivialprobabilityofstarving.Thus,theprincipalhasanaturalincentivetoinducetheagenttosettheworkstationtoprocessunitsatanaverageratethatisstrictlygreaterthantheaveragerateatwhichtheintermediateunitsarrive,ascommonlyassumedintheoperationsmanagementliterature_HoppandSpearman2001_.
Knowledgeworkershavealotofpower,andyoudon'twanttoimposeth
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