Different "schools" of economic theorizing are primarily distinguished   
from one another by their methodologies.  Not surprisingly, this is a   
result of the fact that a methodology is founded on an epistemology--a   
theory of knowing.  Different epistemologies produce different   
methodologies, which in turn produce different general theories as   
explanations of the phenomena its theorists term "economic."  An   
Aristotelian would say that only one epistemology can be correct.  
  
Sam Bostaph