I recall that somewhere in Schumpeter's _History of Economic Analysis_ there is a discussion of the general idea that conceptual frameworks can give rise to--what I am going to call--"imaginary" problems, that is, problems that are brought into existence by the framework rather than the phenomenon itself. I would be grateful to learn the exactly location of this idea in HEA so I could take another look at it and reflect some more. Thanks for your help! Bruce Larson