The theoretically methodological theory submitted is concerned with theoretical basis for the research of political process dynamics in the complex environment of European social policy. The author comprehends the political process as a system of intentional social activities and decisions. The author proposes to consider chosen theoretical conceptions of determination in terms of their utilization in the research of political process dynamics. In doing so, he starts with the description of practical problems of political process researchers, who call attention to the evident fragmentarization of the social theory and to the lack of integral viewpoints explaining inconsistent results of empiric investigations.