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>Reportedly he did this during the early 1950s while visiting 
>at the Rand Corporation and the original context of the idea was 
>international arms races and treaty negotiations. 
 
A source for this is: 
 
William Poundstone 1992: "Prisoner's Dilemma," New York: Anchor Books. 
 
--Esther-Mirjam Sent 
University of Notre Dame 
 
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