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1.
whereIvitispartialelasticityofoutputwithrf'specttoi-thfactorinput,andbit=Xi,/L,theintensityofi-thfactortvithrespecttolaborInput.Ontheright-handsideofl;heaboveequatloll,thefirstcomponentisknownasthe"exogenoustechnicalprogress",nlalnlyduetoa'lvanceinkno\viedge;thesecondcomponentisattributedtoscaleeconomiesordiseconomles,thethirdcompollentisthetechnologicalchange,determinedbymarginalratesofsubstitutiolloffactors,factorintensitieswithrespecttolaborinputandtheirchanges.A>illexitlllpleofelllploylllgthe1llethodof  相似文献   

2.
1 IntroductionMultinomiallogitmodelshaveattractedmoreattentiontodifferentspheresfordiscretechoiceproblem:theresponseofstimuliinbiology,theallocationingeography,theshareofcommoditiesinmarketing,theclinicinhealthcare,thechoiceoftransportmodesandthedeci…  相似文献   

3.
Inthispaper,wediscussedthenonstationaryforestevolutionsystem,definedthetime-varyingcriticalproliferationrateandthecriticalproliferationrate,andobtainedthenecessaryandsufficientconditionsforthesystemtobestable.  相似文献   

4.
1 IntroductionIthaslongbeenrecognizedthataproblemofmoralhazardmayarisewhenindividualsengageinrisksharingunderconditionsthattheirprivatelytakenactions,alongwithrandomstateofnature,affecttheoutcomewhichcouldbeobservedeventually.Thissituationiscommonin…  相似文献   

5.
1 IntroductionAveryimportantcomponentofChina′seconomictransformation,whichbeganin1978,hasbeentheprocessofopeninguptotheoutsideworld.Consequently,theroleofexternaltradeinChina′seconomyhasgrowndramaticallyinthelast20years.ThemainfeatureofChina′sforeig…  相似文献   

6.
Thisabbreviatedpaperconsistsofthreeparts.lnthefirstpart,thedifhrentialequationmodelsofhierarchicalmanpowersystemsareestablished,whichareabletobeusedfordiscussingthestabilityofthesystem.lnthesecondpart,westudythesubsystemmodels.Theobtainedresultsdemonstratethat,theuniformmanpowerpoliciesarenotfeasible,andthereshouldbethedivergence崐ofpoliciesamongsubsystems.Therefore,theinterflowamongthesubsystemsmustexist.lntbelastpart,anexampleisgiven,  相似文献   

7.
Thevariablestructurecontroldsingisstudiedforaclassforofdelayeddistributedsystemswhithdistributedcontrolstructures.AnewmethodbasedontheLyapunovfunctionisproposed.Finally,anexampleisgiventoillustrate,thedesignprocessofcontrol.  相似文献   

8.
1 ForecastMethodWe′llusethefactorreconstructionanalysis(FRA)tostudythelawoftalent,becausethestatisticdataabouttalenthasthefollowingcharacteristics:1)Thedataarenotstandard2)Themechanismoftalentrunningischanging,thusthelawoftalentiscomplicatedTheFRAwas…  相似文献   

9.
1 TheModelsinthePaper(JunZhu,1994)Awomenchildbearingprocesswasdescribedasasequentialprocessconsistingofaseriesofindependentstageswherewomenmovefrommarriagetofirstbirth,fromfirstbirthtosecondbirth,andsoon.Twokindsofmodelswereadopted,theCoaleMcNeil′sm…  相似文献   

10.
1 IntroductionTheinfluencialfactorsonthecoalfaceproductionmainlyincludegeology,equipmentandpersonnel.Justbecauseofthethreefactors′comprehensiveeffectonthefullymechanizedcoalface,thepracticalproductioncapacitycanbemadelowerthantheratedone.Thispaperi…  相似文献   

11.
1 IntroductionInputoutputmodelhasbroadapplicationallovertheworld[1~3]sinceW·Leontiefofferedthismodelin1930s[4].Inparticular,theresearchofdynamicinputoutputmodelhasrecentlyarousedgreatinterestofmanyscholars[5,6].Theformofthedynamicinputoutputmodel…  相似文献   

12.
Yes,ScienceisConfrontedbyaGreatRevolutionJozephJ.Smulsky(InstofEarth'sCryosphere,SiberianBranch,RussianAcademyofSciences,6250...  相似文献   

13.
Thebasicmeaningofcombinationforecastiscombiningmanyforecastingmodelstogethertoforecast,anditisusualylinearcombinationago.Infa...  相似文献   

14.
1PrefaceIntheenvironmentalimpactasesmentofconstructionitems,aftersystematicalyanalysingandclasifyingdischargingfeaturesandenv...  相似文献   

15.
1 IntroductionRecently,thestudyonthetheoryofincompletefinancialassetsmarkethasmadesomeimportantdevelopmentandsomevaluableresultshavebeengiven.Thebasicobjectiveofthetheoryofincompletemarketsistoextendthegeneralequilibriumanalysisofmarketsfromtheclass…  相似文献   

16.
A Discussion on the Introduction of Entropy into Economics   总被引:5,自引:0,他引:5  
ADiscussionontheIntroductionofEntropyintoEconomicsJIANGLu(BeijingNormalUniversity,China,andUniversityofTrento,Italy)Abstract:...  相似文献   

17.
1IntroductionIntheeconomicdevelopmentofacountry,therearenormalytwoadjustingwaysoftheindustrialstructure,i.e.:incrementaladjus...  相似文献   

18.
1 IntroductionAlthoughmanynonlinearprogrammingalgorithmswillobtainalocalsolutionforanoptimizationproblem,themaindifficultywiththesemethodsisthatthelocalminimawhichtheyobtainmightnotbeglobal.Activeresearchduringthepastthreedecadeshasproducedavariety…  相似文献   

19.
1IntroductionAtransferlineconsistsofn(n=2,3,…)machinesseparatedbybufers.Workpiecesflowfromoutsidethesystemtothefirstmachine.A...  相似文献   

20.
1 IntroductionGenerally,anoptimizationproblemcanbewrittenasthefollowingform(P)  zp=minx∈Xf(x),(1)WhereXisthesetoffeasiblesolutions,andf(x)istheobjectivefunction.Butintherealworld,duetotheuncertaintyofthefuture,theinputdataoftheobjectivefunctionf(x)d…  相似文献   

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