第篇:国际学术会议发言稿
1 prologue
thank you mr chairman for your gracious introduction i am honored to have the chance to address you on this special occasion the topic of my paper is transaction cost and farmers’ choice of agricultural products selling the outline of my talk as follows the first part i want to introduce the background of this research the second part suggests a simple household choice model the third part covers the data used in this research and then we introduce the empirical results finally a simple conclusion is given
2 introduction
well let’s move on the first part of this topic the motivation of this work like this institutional economics posits that agents making decisions on different types of transactions do so in a costly way for example farmers deciding sell a particular crop to whom base their decisions not only on the price they expect to receive in each market choice but also on additional costs related to transacting in these markets
i want to use a picture to illustrate it for example given some market channels farmers’ choices can be regarded as equilibrium between the surplus and the additional costs that related to transacting especially in developing countries highvalue crop producers fully participate in the market and the transaction cost has been the hard constraint to farmers furthermore farmers’ market choices can be taken as a choice dilemma of transaction cost and production surplus consequently the scientific question of this research is how transaction cost affects planters’ choices
3 methodology
let’s move to the theoretical model of our research consider a household model in one rotation in stage 1 famer η needs to allocate the input factors this process can qbe set into a function like this q q( p w z ) qη means the output farmers decide qto produce p implies the output price w implies input price andz is fixed input once produce what and produce how many are decided next question to be considered is how much products to be transacted in market here we use three cc()cη means how functions to describe this question the first equation c p z
much agricultural products used by famers themselves p implies the price the cagricultural productz suggests the fluctuation of cη the second equation q q c qη means the amount of agricultural products transacted in
qnmarket the third equationi q implies the amount exchanged in nth time
in stage 3 farmers will decide to sell the products to whom chanel j’s market price is
bdecided by an exogenesis price and farmers’ negotiating powerpijp*
jb(qizi)besides this we use a matrix to show the net profit of chanel jx ik ik ik
and then farmers’ choice can be expressed in a typical choice model
exp(xij)pr(jij|xik)1 exp(xij) k1
based on the choice model another important concept is famers’ channel choice here we set five types they rank by the market barriers accordingly we set a group discrete number to express them y dependent variable y5means farmer choose
brokers y1 farmers sell products to consumers directly
4 data and estimation procedures
here we illustrate the data distribution with this map according to the agricultural regionalization from department of agriculture the apple specialization areas in china contain two parts bo sea area and loess plateau bo sea area in red color contains hebei shandong and liaoning 3 provinces and loess plateau in green color contains shanxi henan shaanxi and gansu 4 provinces firstly we use pps method to get the first stage sampling unit 14 counties in 7 provinces then use random sample method to get village and household they are our sample distribution
5 empirical results
6 conclusions
第二篇:国际会议
国际会议:2014 2nd international conference on environment science and engineering
(icese 2014)post by:2014724 190928 [该作者]
2014 2nd international conference on environment science and engineering
may 26 2014 news the icese 2014 papers are available in the vol8 of ipcbee (click)
mar16 2014 news the conference program of icese 2014 is available now (click)
welcome to the official website of the 2014 2nd international conference on environment science and ed during april 78 2014 in bangkok thailand icese 2014 aims to bring together researchers scientists ehe practical challenges encountered and the solutions adopted
change and share their experiences new ideas and research results about all aspects of environment scie
the conference will be held every year to make it an ideal platform for people to share views and expsensors and related areas icese 2014 will be published in one volume of ipcbee and all papers will be y digital library and indexed by thomson isi (web of knowledge)
call for papers
2014 2nd international conference on environment science and engineering icese 2014 is the premier forum for esearch results in the fields of theoretical experimental and applied environment science and engineering the confereers engineers and scientists in the domain of interest from around the world topics of interest for submission include
environmental science and technology
environmental dynamics
meteorology
hydrology
geophysics
atmospheric physics
physical oceanography
global environmental change and ecosystems management
climate and climatic changes
global warming
ozone layer depletion
carbon capture and storage
biofuels
integrated ecosystems management
satellite applications in the environment
environmental restoration and ecological engineering
habitat reconstruction
biodiversity conservation
deforestation
wetlands
landscape degradation and restoration
ground water remediation
soil decontamination
ecotechnology
bioengineering
environmental sustainability
resource management
life cycle analysis
environmental systems approach
renewable sources of energyenergy savings
clean technologies
sustainable cities
health and the environment
health related organisms
hazardous substances and detection techniques
biodegradation of hazardous substances
toxicity assessment and epidemiological studies
quality guidelines environmental regulation and monitoring
indoor air pollution
water resources and river basin management
regulatory practice water quality objectives standard setting water quality classification public participation
economic instruments
modeling and decision support tools
institutional development
transboundary cooperation
management and regulation of point and diffuse pollution
monitoring and analysis of environmental contaminant
ground water management
wastewater and sludge treatment
nutrients removal
suspended and fixed film biological processes
anaerobic treatment
process modelling
sludge treatment and reuse
fate of hazardous substances
industrial wastewater treatment
advances in biological physical and chemical processes
on site and small scale systems
stormwater management
air pollution and control
emission sources
atmospheric modeling and numerical prediction
interaction between pollutants
control technologies
air emission trading
solid waste management
waste minimization
optimization of collection systems
recycling and reuse
waste valorization
technical aspects of treatment and disposal methods (landfilling thermal treatment etc) leachate treatment
legal economic and managerial aspects of solid waste management
management of hazardous solid waste
water treatment and reclamation
disinfection and disinfection by products
management of water treatment residuals
aesthetic quality of drinking water (taste odors)
effect of distribution systems on potable water quality
reuse of reclaimed waters
dexed by thomson isi (web of knowledge)
important date advanced treatment of water and secondary effluents (membranes adsorption ion exchange oxidation etc) icese 2014 will be published in one volume of ipcbee and all papers will be included in engineering
paper submission (full paper)before december 10 2014 notification of acceptanceon january 1 2014 final paper submissionbefore january 15 2014 authors' registrationbefore january 15 2014 icese 2014 conference datesapril 7 8 2014
submission methods
1 electronic submission system ( pdf)
if you can't login the submission system please try to submit through method 2
2 email ( pdf and doc)
第三篇:国际会议
invitation letter
dear professor li
on behalf of the peking university and the ieee computer society i would be very pleased to invite you to attend and chair a session of the forthcoming 2014 international conference on parallel data processing to be held in beijing from march 25 to march 28 2014
you are an internationally acclaimed scholar and educator your participation will be among the highlights of the conference
we sincerely hope that you could accept our invitation if you can come please let us know as soon as possible since we have to prepare the final program soon we are looking forward to your acceptance
sincerely yours
wang yang
reply letter
dear professor wang
many thanks for your letter dated 15th february inviting me to attend and chair a session of the forthcoming 2014 international conference on parallel data processing to be held in beijing from march 25 to march 28 2014
much to my regret i shall not be able to honor the invitation because i have been suffering from a disease since this summer i am firmly advised that it would be unwise to undertake any distant and long travel in the near future
i feel very sad to miss the opportunity of meeting you and many others in the field of computer science i wish the conference a complete success sincerely yours
li ming
inquiry letter
dear sir
thanks you very much for accepting our invitation i am writing to ask for information about your beijing travel for the session you will arriver at march 24 and please let me know that your arrival time and specific ways so that we may arrange person to pick you up we are looking forward to your arrival
sincerely yours
wang yang
第四篇:国际会议中心
国际会议中心
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第五篇:2014国际会议通知
20142nd international conference on energy and environmental
protection (iceep 2014)
2014年第二届源环境保护国际会议蒙古学香港工业技术研究中心联合发起组织国际性学术会议2014年4月20日21日桂林举行
届会议旨参会专家学者提供高水学术交流台探讨持续源环境工程相关技术全球发展源环境相关产业面新机遇推动国际源技术创新环境持续发展
诚挚邀请海外专家学者相关行业朋友参加次学术会议
次会议录文章正刊出版advanced materials research全部ei核心istp时索引全文截止日2014年4月5日
文求:
1必须符合次会议征文题
2流畅英文撰写符合英文写作规范读性
3结构严谨实性创新性
4原创未出版
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