手法を比較

	Alliance Network Analysis	Power Transition Analysis
分野	International Relations	International Relations
系統	Process / pipeline	Process / pipeline
提唱年	2012	1980
提唱者	Skyler Cranmer, Bruce Desmarais & Elizabeth Menninga	A. F. K. Organski & Jacek Kugler
種類	Network analysis and inferential network modeling of interstate alliances	Theory-driven observational analysis of war between rising and dominant powers
原典	Cranmer, S. J., Desmarais, B. A., & Menninga, E. J. (2012). Complex dependencies in the alliance network. Conflict Management and Peace Science, 29(3), 279–313.	Organski, A. F. K., & Kugler, J. (1980). The War Ledger. University of Chicago Press.
別名	International Alliance Networks, Alliance Portfolio Network Analysis, Network Models of Alliance Formation, Interstate Alliance Graph Analysis	Power Transition Theory Analysis, Power Parity and War Analysis, Hegemonic Transition Analysis, Overtaking and War Analysis
関連	3	3
概要	Alliance network analysis studies international alliances as a graph of states linked by formal security commitments, and models how that network forms and evolves. Rather than treating each alliance dyad as independent, it uses network science and inferential models such as the exponential random graph model (ERGM) — applied to alliance data by Cranmer, Desmarais, and Menninga (2012) — to capture the complex dependencies, such as a state's tendency to ally with its allies' allies, that ordinary dyadic regression assumes away.	Power transition analysis examines when and why war breaks out between a dominant state and a rising challenger as their relative power converges. Originating in A. F. K. Organski and Jacek Kugler's The War Ledger (1980), it holds that the international system is hierarchical and most dangerous not at moments of clear preponderance but when a dissatisfied rising power approaches parity with the dominant state — and it operationalizes this by tracking relative national capabilities over time and relating overtaking to the onset of major war.