nagers. And, in order to avoid interference with management team on the basis of the following factors, such as legislation, law in most countries are not to bring charges against minority shareholders managers to provide litigation support, this makes the small shareholders to diffuse ownership of pany's supervision more difficult. With relative pany shareholders' equity is relatively concentrated, shareholders can effective supervision on the manager. In most countries the legal support of big shareholders to managers of the claims, this makes the big shareholders can be effective supervision to managers. parison, the equity structure is helpful to realize the effectiveness of the supervision mechanism. Р译文上市公司股权结构与公司业绩研究РHudaib MР摘要股权高度分散一直被视为公司治理研究的根本出发点,但近年来,除美国、英国、加拿大等少数国家外,大部分国家的上市公