EN
In the economic literature of the last few years there can be observed a considerable rise of interest in structural transformations. This interest was reflected in numerous theoretical works making an attempt at formulation of the structural changes theory as well as in many research reports aiming at empirical analysis of the economic growth causalities. In the present strategy of socio-economic development acceleratiom of structural transformations represents one of its crucial elements necessitated by a tendency towards further modernization of our economy's structure. Hence, there arises a need for determination and utilization of factors producing changes in the economic structure. This work is an attempt at presentation of the most important factors which, in the author’s opinion, generate structural changes. It, moreover, sets forward to provide a review of the most important opinions on the subject — mainly of Polish economists. It consists of three parts. The first part shows a correlation between the economic growth and structural transformations; in the second part the author formulated the concept ol the structure and classified economic structures; and finally in the third part there are described and analyzed factors producing structural changes.