This book serves as an introductory monograph, that is, a self-contained, comprehensive, and thoroughly researched introductory scientific work that contributes to knowledge and, consequently, to the development of theoretical and practical applications in political, public policy, and comparative sciences.

The essence of this contribution to scientific knowledge is the introductory approach to these cognitive subjects through the theory and empiricism of self-interest and selfishness. As a result, this work studies the nature, content, essence, and characteristic processes and interactions of the political and public political phenomena, as well as the comparative dimension that comparative science adds to comparative politics and comparative public policy.

Within this scientific and methodological framework, various and different interests and the way and cause of relationships, interconnections, promotion, management, and settlement are recognized, evaluated, and analyzed. Thus, political and public policy sciences are essentially perceived as the relationships of power, influence, and authority of any form of institutional and non-institutional political and socio-economic interests and the corresponding centers and/or peripheries of decision-making.