Over the years the theoretical structure of input-output analysis has been refined and its applications have been widened. This three volume set presents an overview of this development and an assessment of the current state of the subject. It offers a comprehensive collection of previously published articles which present some of the most significant theoretical and empirical contributions of leading scholars to multisectoral economic analysis. The first volume is devoted to the foundations of input-output analysis, to dynamic models and to multisectoral extensions of the multiplier principle. Volume II explores approaches to the modelling of economics and the environment, to the analysis of foreign trade and to regional and interregional economic activities. The third volume discusses the methodologies developed for the investigation of economic structures, offers an analysis of various versions of price models and investigates the problems related to the estimation of input-output data.