Game theory, Economic models, Sweden, Europe, Economics, U.S.A., Political Science, International politics, Deterrence, Diplomacy, Bargaining, Alliances, Political theory, International trade, Political institutions, Trade policy, International Relations, Foreign Policy, Foreign Investment, Parliamentary regimes, NATO, Democratic regimes, Weapons, Ireland, Trade relations, Military expenditure, International crisis, Domestic policy, Political leaders, Tariffs, Trade theory, Prisoner's dilemma, Collective security, European Union, Denmark