进入壁垒与石油产业组织效应

进入壁垒是影响产业组织效率的重要因素之一。对于石油产业来说，一定的进入壁垒有利于保护国家利益和社会利益，有利于避免其他企业的盲目进入，提高规模经济效益。但应对石油产业不同性质的业务加以区分，区别实行不同的进入壁垒政策。

Entry Barriers and Organizational Effect of the Petroleum Industry

Entry barrier is one of the important factors that affects the efficiency of industrial orgnization.For petroleum industry,some kinds of barriers are advantageous to protect the interests of nation and society,to refrain from other firms' unrealistic entry and to promote economies of scale.However,it is necessary to distinguish the business of different characteristiss in petroleum industry and then to put into effect the policies of entry barriers with each case on its merits.Only by this way can whole organizational efficiency of petroleum industry be greatly improved.