Diplomatic dropped from 5% to 3%, economic history from 7% to 5%, and cultural history grew from 14% to 16%. Based on full-time professors in U.S. history departments. Stephen H. Haber, David M. Kennedy, and Stephen D. Krasner, "Brothers under the Skin: Diplomatic History and International Relations", International Security, Vol. 22, No. 1 (Summer, 1997), pp. 34-43 at p. 4 2; online at JSTOR
Allan G. Bogue, "United States: The 'new' political history." Journal of Contemporary History (1968) 3#1 pp: 5-27. in JSTOR
William Leuchenburg, "The Pertinence of Political History: Reflection on the Significance of the State In America", Journal of American History (Dec. 1986) 73:585-600 in JSTOR
Hugh Davis Graham, "The stunted career of policy history: a critique and an agenda." The Public Historian (1993): 15-37. in JSTOR
Mark H. Leff, "Revisioning US political history." American Historical Review (1995) 100#3 pp: 829-853, quote p 829. in JSTOR
