On the basis of above analysis , the article puts forward the suggestion to improve the auction system and adopt the market maker system in china ' s second board market , which will be helpful to the construction and development of china ' s second board market 最后，本文主要探讨了我国目前的撮合竞价制度及其改进，及做市商在我国发展的一些障碍，并针对创业板市场对做市商制度的适用性进行了分析。
Selecting this box offers a color code to the land - reddish brown is land owned by others , green is your land , aqua is land owned by a group that you are a member of , grey is the rare public land , and purple is land in the auction system 不同颜色显示出土地的不同所有权限? ?红赫色表示其它人所有的土地，绿色表示你拥有的土地，浅绿色表示你所在的群组拥有的土地，灰色是罕见的公有土地，紫色表示土地正在拍卖。
It would n ' t increase market efficiency if we introduce dealer system into china ' s second - board market at once because china ' s economy is transferring , so it is n ' t suitable to introduce dealer system into china ' s second - board market now . it should adopt the auction system in second - board market like in main board market 论证了在中国这样一个经济转型期内，在二板市场上引入做市商制度并不会增加市场效率，提出中国目前不适宜在二板市场上引入做市商制度，而应延续主板市场的竞价制度。
In the chapter of analyzing the primary allocation of shell resource , the author emphasizes that ineffectual rent - seeking leads to great damage to the social welfare , and he also points out that auction will not eliminate rent - seeking and the only way to do so is deregulation through a 3 levels analysis of the auction system 在分析“壳资源”初级配置时，指出无效寻租可能构成了寻租成本的主体，直接损害了社会福利。并通过对拍卖制的寻租三层次分析，说明拍卖制并不能消除寻租，指出解决寻租的根本方法只能是放松管制。
Secondly , it analyses different deal systems of second - board markets in all countries and elicits : at present the mainstream of deal system in second - board markets is auction system , and most of the deal systems in second - board markets come from main board markets because it reduces the instauration costs and is convenient for brokers and investors to trade off 然后，对世界各国二板市场及其交易机制进行比较研究，得出：当前世界二板市场交易制度的主流是竞价制，且大部分二板市场的交易机制都是从主板市场那儿延续过来的，这样可降低二板市场的设立成本，便于经纪商和投资者迅速适应交易。
In this paper , the author primarily introduces how elliptic curves have been applied to public key cryptography from algebra and number theory , analyzes the advantage and security of ecc . the work the author has done is : ( 1 ) study the arithmetic of ecc on the encryption / decryption , digital signature and key exchange schemes and analyze their security performance ; ( 2 ) propose a new id - based group signature with existed id - based digital signature and discuss its application in digital cash ; ( 3 ) realize the electronic auction system and key authentication system with ecc 作者所作的主要工作有： ( 1 )研究了基于大素数域上的椭圆曲线密码在加密解密、密钥交换、数字签名等方面的密码协议并分析了每种协议的安全性能； ( 2 )在现有基于身份的数字签名方案的基础上提出了基于身份的群签名系统并讨论了群签名在数字现金中的应用； ( 3 )给出了椭圆曲线密码在电子拍卖系统、密钥认证系统方面的实现方案。
Firstly , it analyses principle of auction system by marginal pairs , analyses principle of dealer system by inventory theory . by comparing the similarities and differences of two deal systems , it elicits : it has higher liquidity and less deal costs in dealer markets when capital stock is smaller and there are less shareholders in markets , and it has higher liquidity and less deal costs in markets with auction system when capital stock is bigger and there are more shareholders in markets 首先，运用边际对偶理论对竞价制度进行原理分析，运用存货理论对做市商制度进行原理分析，通过比较两种交易制度的异同和各自的优缺点得出：股本较小、股东人数较少的股票在做市商市场上流动性较高，交易成本较小；而股本规模大，股东人数多的股票在指令驱动市场上流动性较高，交易成本较低。
The paper analyzes the drawbacks of traditional auction system based on mas and the trend of electronics auction , and deeply studys current auction system . combined with cooperation games theories , this paper gives the rules of alternating double auction , brings up the cooperation model cm and agent based on cooperation games , and uses the bdi model to build agent , and gives the bdi logical of mean and reason logically . at last , this paper establishes alternating double auction platform and researches agent ' s cooperating auction on this background 分析了传统的基于mas拍卖系统的不足以及当前电子拍卖的发展趋势，深入研究了当前拍卖系统，结合合作博弈理论，给出交互式双边拍卖平台的拍卖规则，提出交互式双边拍卖平台的合作模型cm和基于合作博弈的agent ，并使用bdi模型建立基于合作博弈的agent ，给出agent的bdi逻辑表示以及推理，并建立交互式双边拍卖测试平台，在该平台下进行多agent合作拍卖的研究。
This thesis is based on a mobile e - business system - mobile auction system , which adopts the j2me ? and web service technologies . after comprehensive research work upon the web service security and j2me security technologies , i bring forward a security model , and implemented it in the mobile auction system 本文主要通过利用j2me和web服务技术相结合实现的一个移动电子商务应用- - - -移动电子拍卖系统中的安全性实践，针对当前web服务平台上的安全性规范和j2me平台上安全应用的研究，提出了一个安全实现的模型，并在移动电子拍卖系统中进行了实践。
The " bid - joy " mobile auction system , a typical case of mobile e - business , is built with web services in a standard way . it applies the newly released wsa 1 . 0 api to achieve accessing web services on mobile devices . it ' s ready to be put to market and just waiting for devices that support the wsa api “拍趣”拍卖系统是移动电子商务的一个实现案例，作者在对web服务技术及其移动设备上的应用和发展状况作了较广泛和深入的研究之后，利用j2me平台上最新的web服务开发标准wsa ( jsr172 )技术实现了在移动设备上对web服务的访问。
