International Institutions; Mathematica Modeling of Change from G5 to G20

International Institutions, though one of key global actors and topics of International Studies, are rarely studied by focusing on the internal processes of change. A justification for lack of research could be the challenges in quantifying internal changes and processes. Hence, the proliferation of qualitative takes relying on personal analysis. Given the importance of cooperation groups in global governance, this article asks what is the degree of change in the process of expansion of G5 into G20? Utilising quantitative and mathematical methods, the study offers an equation based on data provided by the World Back. The equation proves a model to analyse track-records, which seemingly suggests highest performance by G7 and lowest for G8.