Due to information asymmetry and different kinds of irrational and opportunistic behaviors in the process of information transmission , it happens frequently that securities information cannot be reflected efficiently on securities prices . this leads to securities market inefficiency 由于信息不对称及信息传递总过程中的各种非理性和机会主义行为，证券信息往往不能在证券价格上得到有效反映，证券市场有效性降低。
The centralization of ownership is very help to reduce the cost of agency and the other shareholders also can get benefit from that . however , the majority shareholder can manage the right of control , the nature force them usurp on the right of the other shareholders 然而,由于大股东掌握着公司的实际控制权,他们的自利天性与机会主义行为又可能会使其寻机运用公司控制权掠夺公司的整体利益(主要是中小股东的利益) 。
Improve the construction of sincere system has already become the first task . the research of good faith question of our country began in 1979 , which is also the beginning of reform and open policy . zhang weiying is one of scholars who study sincerity 在市场上,交易的各方是分散的利益主体,其交易关系建立在平等的契约基础上,交易的时候会面临不同的交易条件,由于信息不对称和交易主体的机会主义行为,可能导致欺诈行为的产生。
One way is to design a deputizing contract with reason which definitely defines deputy ' s duties and rights and inspirit and restrict deputy ' s deeds to reduce the opportunism behavior of agent . so the targets of agent could be nearer to that of consigner 一是通过合理设武汉理工大学硕士学位论文一计代理契约，明确界定代理人的责任、权利和义务，并给予代理人最佳的行一为激励和约束，使代理人的行为目标与委托人的目标接近，减少代理人的机会主义行为。
First , the paper analyses the structural conditions of international roaming markets and then points out the cause why international roaming charges have remained high is that the wholesale price can not reflect the market demand of international roaming , thus inducing the operators ' opportunism behavior 摘要针对当前国际漫游资费居高不下的情况，本文从国际漫游资费的结构出发，采用伯川德模型，提出国际漫游资费居高的原因是由于国际漫游批发价格不能反映被访运营商的市场需求，从而导致各运营商的机会主义行为。
In detail , the advantages are as follows : ( 1 ) it helps the investor to obtain the information of accounting policy choice , and increases his ability to identify the accounting information , and benefit his decision making ; ( 2 ) it is helpful to the listed companies to overcome the managers ’ opportunisms behaviors and to make accounting policy choice " legitimate " and " fair " ; ( 3 ) it is beneficial to enrich and develop the theories and methods of accounting policy disclosure 具体研究意义有以下几点: ( 1 )有助于信息使用者了解上市公司所选择的会计政策,从而更好的理解会计信息,进一步提高会计信息决策有用性; ( 2 )有助于上市公司克服管理者利用会计政策选择实现自己不正当利益的机会主义行为,实现会计政策选择的“合法”和“公允” ; ( 3 )有助于丰富和发展我国关于会计政策披露的理论。
This paper analyses the advancement problems of soes from the angle of investment climate ( mainly in the institution climate ) . the aim of improving soes " investment climate is to protect the rights and interests of state capital , restrain managers " opportunist behavior and assert rights of the small shareholders and staffs , thus accelerate soes " wholesome development 本文的研究立足投资环境(主要是制度环境)的角度来分析国有企业的发展问题，而改善国有企业投资环境的目的是为了保护国有资产权益，抑制内部人机会主义行为，维护中小股东及企业员工的切身利益，促进国有企业的健康发展。
