国际学术会议发言稿

篇一：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, high-value 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 and. z: ? 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 product, z ?suggests the fluctuation of Cη. The second equation q ? ? Q ? ? c? , qη means the amount of agricultural products transacted in

q?n?market. 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 power. pij?p*

j?B(qi,zi)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(ji?j|Xik)?1 exp(Xij?)? k?1

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 Y=5,means farmer choose

brokers. Y=1, 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

篇二：英文国际学术会议开幕词演讲稿

Distinguished guests, distinguished delegates, ladies and gentlemen, and all the friends:

At this special time of wonderful August, With a pleasant subtropical climate in Xiamen, Our respectable guests are here getting together , undertaken by XMU , the 2014 10th International Conference on Natural Computation and the 2014 11th International Conference on Fuzzy Systems and Knowledge Discovery , will be open. Now, First of all, please allow me to give our hearty welcome to all of you present, and thank you , for your friendly coming. We feel so proud, and appreciated as well to be the host of the event.

It is a great honor for us to have all you here to attend this conference, of which the theme is the academic exchange about the advanced technologies on Computer Science. Here I’d be delighted to introduce our conventioneers in brief. Apart from our faculty and students, Most of the delegates and guests are prestigious experts and scientists, who are related in these fields from all over the world. With many significant achievements, they are the most dynamic leaders in the movements of the science and technology.

ICNC-FSKD is a premier international forum for scientists and researchers to present the state of the art of data mining and intelligent methods inspired from nature, particularly biological, linguistic, and physical systems, with applications to computers, circuits, systems, control, communications, and more. This is an exciting and emerging interdisciplinary area in which a wide range of theory and methodologies are being investigated and developed to tackle complex and challenging problems. As the host, I would like to take this opportunity to give you a general introduction about our school..

Xiamen University(XMU), founded in 1921 ,is the first university in China founded by overseas Chinese. Before 1949, it was named University of Amoy. The school motto: "Pursue Excellence, Strive for Perfection (自强不息, 止于至善)". Now this university ranked the 13th in China, which is in the front rank in China and maintain the top 20 ranking in china. This university is one of the comprehensive universities directly affiliated with the Education Ministry, is located in the city of Xiamen in Fujian Province. In 1995 it was included in the list of the “211 Project” for the state key construction; in 2000 it became one of China’s higher-level universities designated for the state key construction of the “985 Project”.

For this conference, we are following the agenda here. The meeting is supposed to last for three days，and to be separated into two parts. To begin with , we’ll invite some representatives from our guests to give lectures about their latest researches and reports on the

issue, and then we will have some symposiums. During the conference we are pleased to be your guide to this city. If anything needed, don’t hesitate to contact us. We believe by our collaboration we are sure to make this gathering a consummation.

And finally I wish you an unforgettable and prefect experience here.

Thanks!

篇三：学术会议开幕致辞

学术讲座开幕致词

尊敬的各位专家、各位同仁：

大家下午好！

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最后，预祝学术讲座圆满成功！祝大家工作愉快，身体安康！ 谢谢大家！