EN
The fundamental purpose of this article is to present the results of analysis the level and structure of equity of the selected companies quoted on the Warsaw Stock Exchange. The empirical investigation are aimed at verification of the hypothesis which assumes that on the forming of book value of equity of the joint-stock exchange companies mainly influenced by the value of the resource capital, which the share in the equity in the meaning way is prevailing above the share capital of. The empirical investigations have been preceded by the theoretical deliberations upon the role and meaning of the structures of equity in the joint-stock companies.