国际学术会议讲话稿(精选多篇)

第一篇：国际学术会议发言稿

1.prologue

thankyou,mr.chairman,foryourgraciousintroduction.iamhonoredtohavethechancetoaddressyouonthisspecialoccasion.thetopicofmypaperis“transactioncostandfarmers’choiceofagriculturalproductsselling”.theoutlineofmytalkasfollows.thefirstpartiwanttointroducethebackgroundofthisresearch.thesecondpartsuggestsasimplehouseholdchoicemodel.thethirdpartcoversthedatausedinthisresearch.andthen,weintroducetheempiricalresults.finally,asimpleconclusionisgiven.

2.introduction

well,let’smoveonthefirstpartofthistopic.themotivationofthisworklikethis.institutionaleconomicspositsthatagentsmakingdecisionsondifferenttypesoftransactionsdosoinacostlyway.forexample,farmersdecidingsellaparticularcroptowhombasetheirdecisionsnotonlyonthepricetheyexpecttoreceiveineachmarketchoicebutalsoonadditionalcostsrelatedtotransactinginthesemarkets.

iwanttouseapicturetoillustrateit.forexample,givensomemarketchannels,farmers’choicescanberegardedasequilibriumbetweenthesurplusandtheadditionalcoststhatrelatedtotransacting.especiallyindevelopingcountries,high-valuecropproducersfullyparticipateinthemarketandthetransactioncosthasbeenthehardconstrainttofarmers.furthermore,farmers’sequently,thescientificquestionofthisresearchishowtransactioncostaffectsplanters’choices.

3.methodology北京全路通信信号研究设计院

let’siderahouseholdmodelinonerotation.instage1,famerηneedstoallocatetheinputfactors.thisprocesscanqbesetintoafunctionlikethisq??q(p,w,z?),qηmeanstheoutputfarmersdecideqtoproduce.pimpliestheoutputpricewimpliesinputpriceand.z:?

producewhatandproducehowmanyaredecided,nextquestiontobeconsideredishowmuchproductstobetransactedinmarket.hereweusethreecccηmeanshowfunctionstodescribethisquestion.thefirstequation,c??p,z?

muchagriculturalproductsusedbyfamersthemselves.pimpliesthepricethecagriculturalproduct,z?suggeststhefluctuationofcη.thesecondequationq??q??c?,qηmeanstheamountofagriculturalproductstransactedin

q?n?market.thethirdequationi?q?impliestheamountexchangedinnthtime.

悠一悠

勒纳指数instage3,farmerswilldecidetoselltheproductstowhom.chanelj’smarketpriceis

bdecidedbyanexogenesispriceandfarmers’negotiatingpower.pij?p*

j?b(qi,zi)besidesthis(请帮助宣传),weuseamatrixtoshowthenetprofitofchaneljxik?ik,ik?

andthenfarmers’choicecanbeexpressedinatypicalchoicemodel

cn-kixexp(xij?)pr(ji?j|xik)?1exp(xij?)?k?1

basedonthechoicemodel,anotherimportantconceptisfamers’channelchoice.here,wesetfivetypes.theyrankbythemarketbarriers.accordingly,wesetagroupdiscretenumbertoexpressthem.y:dependentvariabley=5,meansfarmerchoose四裂红景天

加壳软件brokers.y=1,farmerssellproductstoconsumersdirectly.

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