เปรียบเทียบวิธี

	Correlates of War Analysis	Power Transition Analysis
สาขาวิชา	International Relations	International Relations
ตระกูล	Process / pipeline	Process / pipeline
ปีกำเนิด	1972	1980
ผู้ริเริ่ม	J. David Singer & Melvin Small (Correlates of War project)	A. F. K. Organski & Jacek Kugler
ประเภท	Systematic coding and quantitative analysis of war and national capabilities	Theory-driven observational analysis of war between rising and dominant powers
แหล่งต้นตำรับ	Singer, J. D., Bremer, S., & Stuckey, J. (1972). Capability distribution, uncertainty, and major power war, 1820–1965. In B. Russett (Ed.), Peace, War, and Numbers (pp. 19–48). Beverly Hills: Sage.	Organski, A. F. K., & Kugler, J. (1980). The War Ledger. University of Chicago Press.
ชื่อเรียกอื่น	COW Analysis, Correlates of War Project Data, National Material Capabilities Analysis, Composite Index of National Capability Analysis	Power Transition Theory Analysis, Power Parity and War Analysis, Hegemonic Transition Analysis, Overtaking and War Analysis
ที่เกี่ยวข้อง	3	3
สรุป	Correlates of War (COW) analysis is the systematic, data-driven study of interstate and intrastate war pioneered by J. David Singer and Melvin Small. The COW project assembled standardized, transparently coded datasets on the membership of the state system, the wars it has fought, and the material capabilities, alliances, and disputes of its members since 1816. Singer, Bremer, and Stuckey's (1972) study of capability distribution and major-power war exemplifies the approach: combine these building blocks into state-year and dyad-year datasets and analyze, statistically, what conditions correlate with the onset of war.	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.