The inspection crisis, harbor dispute, rescue-radio case, names and point values are fictional. Larger point values mean better outcomes for that actor. The repeated model adds points across meetings.
Both orders are revealed after each meeting. The computer’s rule uses only prior orders. A four-meeting replay changes one of Vela’s orders and holds the other three orders and Orin’s rule fixed.
The two draft agreements start from the same situation. Both use the same inspections and expect future meetings. The exercise assumes both sides honor a signed draft. The projected defense totals assume both invest all the new savings in defense.
- Stanford Encyclopedia of Philosophy, “Prisoner’s Dilemma” §§ 2, 12 and 14.
- Axelrod and Keohane, “Achieving Cooperation under Anarchy” (1985). Repeated interaction, reciprocity, and institutions.
- Grieco, “Anarchy and the Limits of Cooperation” (1988). Relative gains and security.
- INF Treaty text, University of Oslo Articles I and XI(1), XI(3), XI(7).
- Montreal Protocol text, UNEP Ozone Secretariat Article 4(1) and 4(8), consolidated text.
The treaty cards paraphrase those provisions. The questions about motives ask for possible explanations and evidence. The illustrations depict invented places.