Production factors and results of the public industrial groups in the period 1973-1981, by J. Le Foll. Based on the data published annually by the principal firms and the large industrial groups which are now public, this study analyzes the trend, since the first oil crisis, of the principal indicators concerning the production factors —investment and employment— and the operating results of those production units —sales and gross and net results. It takes an approach complementing the monographic studies and refined evaluations of the share of the enlarged public sector in the various national industrial segments and discusses the trend of those indicators in six relatively homogeneous categories of public groups the old public chemical,...