The research "Multifactorial Assessment of Monopolisation Trends through the Analytical Prism of Price-Based Market Power and Business Cycle Fluctuation Quantitative Evaluation" provides a multi-perspective in-depth analysis of the nature, the occurrence sources, the development features and the conjuncture specifics of the modern process of monopolisation, assessed through the prism of coherent and multifactorial econometrical modelling. The main scope of the aforementioned research is devoted to further developing and significantly enhancing the previously introduced monopolisation trend quantitative analysis methodologies, developed by Skoruks, Nazarova and Senfelde, (Skoruks et al, 2015a, b, c) through simultaneous consideration of the broader context of price volatility and the relevant external factors, existing at various stages of business cycle spiral development, which affect the conduct of internal economic processes within a defined relevant market. The conducted research provides an example of modern econometrical method application within a unified framework of market competition environment analysis for the purpose of conducting a quantitative monopolisation trend evaluation on a relevant market level, while simultaneously considering the business cycles-induced effects on pricing strategies, implemented by the supply-side market actors. The research results may be defined as a system of complex outcomes, which enable the taking of the next constituent step in monopolisation trend detecting, quantification and evaluation, while simultaneously developing an innovative indicator, which had proven to be highly complementary with, while remaining functionally independent of, the analytical systems, used in previously developed methodologies, thus creating a positive synergistic effect in terms of enhancing the functionality, implementation efficiency and outcome transparency of the conducted empirical research.