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Collective security, game theory and
international relations
Providence Day School25 February 2013
Adam Seldiswww.mrseldis.com
Is collective security acting in a
country’s best interests?
RedRed BlackBlack
RedRed
BlackBlack
Player 2
Player 11
13
0
03
22
Card game
Player APlayer A Player BPlayer B TotalTotalPair 1Pair 1Pair 2Pair 2Pair 3Pair 3Pair 4Pair 4Pair 5Pair 5Pair 6Pair 6Pair 7Pair 7Pair 8Pair 8Pair 9Pair 9
Pair 10Pair 10
DenyDeny ConfessConfess
DenyDeny
ConfessConfess
Prisoner B
Prisoner A1 yr
1 yr3 yrs
0 yrs
0 yrs3 yrs
2 yrs2 yrs
Prisoners’ Dilemma
How does game theory apply to
international relations?
Afghan War
EscalatEscalatee
NegotiaNegotiatete
Pull outPull out
EscalatEscalatee
NegotiaNegotiatete
Washington
Taliban
Afghan War
EscalatEscalatee
NegotiaNegotiatete
Pull outPull out
EscalatEscalatee
Military stalemate = more killings
Military win for Taliban
Military win for Taliban
NegotiaNegotiatete
Military win for
Washington
Stalemate = no more killings
Political win for Taliban
Washington
Taliban
Afghan War
EscalatEscalatee
NegotiaNegotiatete
Pull outPull out
EscalatEscalatee
NegotiaNegotiatete
Washington
Taliban-1 1 3
-5-3-2
1 0 -3
30-3
WarWar PeacePeace
WarWar
PeacePeace
Country 2
Country 11
13
0
03
22
War or peace?
Collective security
‘League of Nations’. Cartoon taken from Punch
magazine. 28 July 1920
To what extent was WW1 caused by collective security?
Is collective security acting in a
country’s best interests?
Other examples?•Cold War - USA vs USSR
•Senkaku/Diaoyu Islands - Japan vs China
•Falklands/Malvinas Islands - UK vs Argentina
•Nuclear weapons - Iran vs Israel
•http://tinyurl.com/splitorsteal
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