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Adserà, Alícia, and
Trade, Democracy, and the Size of the Public Sector: The Political
Underpinnings of Openness.
International Organization56 (2):229–62.
Allison, Paul D.1977.
Testing for Interaction in Multiple Regression.
American Journal of Sociology83 (1):144–53.
Beck, Nathaniel, and
Beyond Linearity by Default: Generalized Additive Models.
American Journal of Political Science42 (2):596–627.
Braumoeller, Bear F.2003.
Causal Complexity and the Study of Politics.
Political Analysis11 (3):209–33.
Friedrich, Robert J.1982.
In Defense of Multiplicative Terms in Multiple Regression Equations.
American Journal of Political Science26 (4):797–833.
Mansfield, Edward D., and
Democratic Transitions, Institutional Strength, and War.
International Organization56 (2):297–337.
Do Democratic Institutions Constrain or Inform? Contrasting Two
Institutional Perspectives on Democracy and War.
International Organization53 (2):233–66.