The impact of insufficiently competitive market structures on economy performance

The important part of the competition policy is a problem of the market structure. The concrete structure of the market and the behaviour of its individual subjects, which are determined by the market structure leads to the individual results of the economic performance in the national economy, or its efficiency. That's why is useful to determine which criteria and consequences (the market results) are needed to be considered in the course of normative appraisal of such a performance, or efficiency. The paper does not contain, of course, the whole large scale of this problem, but it concentrates only on the parts named in the beginning, that are connected with understanding of the eventual national economic losses in the prosperity and the performance and (or) misuse of the significant market position and power in the meaning of the imperfect competition. This problem is mainly solved in Anglo-Saxon (the most in American) and German literature, although some aspects are originally included in the tradition of the Scandinavian economic thinking. The prosperity losses, performance losses and distortions of the distribution make the sphere of the economic research that systematically analysed and verified with relevant statistical methods till the end of the 2nd World War. The distortions in the normative justice of a distribution are one of the most important impacts of a deformation in a competitive environment and using the monopoly market power. The impact of the monopoly profits at the various groups is dependent on the preference in the consumption, its structure and on the asked profit level. The distortion impacts of a huge concentration of the market structure on the distribution justice are proved empirically and math-statistically in every case. The fact is, that the most of them are connected with the institute of ownership of the dominant firms in the excess concentrated monopoly branches and oligopoly branches and the market, where such an ,,exclusive" ownership implicates more - less regular extensive ,,rent-seeking" behaviour of its bearers. The analyses of relations on the monopoly market or the oligopoly market structure and the dynamics of the innovation activity an the technical progress are also very important. It is improved, that the intensity of the innovation activity has stronger influence on the market share growth in the firms in the oligopoly structure. The contribution of the innovations, which is represented by making the start before the competitors and by increase of the profits and market share in the long-term aspects is proved by the disposition change of the technological possibilities in the firm and the level of the adaptation for new produce processes with the lowest costs. These are, of course, very complex relations. There is also one problem that specifically exceeds the frame of the general uniform analysis of the defects of the economic performance and losses on the prosperity because of the overly concentration and insufficient competition in the market structures. It is a question about the natural monopoly and the production, the prices, the distribution and regulation of the consumption of public utilities. It is a problematic aspect about the state intervention in the economy that is as old as the whole economics.