My comments on game theory were poorly worded. Insofar as game theory is   
individualist it can deal with only two people. This is of limited   
interest as a base for economic theory.  
  
But game theory also works with representative agents (as in Roy's   
example). This is not methodological individualism because it posits a   
set (group, class) of people with the same objective.  When   
institutionalists or marxists do this they are severely criticized.  
  
Rod Hay