I don't have a paper but there is an extremely interesting discussion  
in Hayek's _The Fatal Conceit_ (Routledge 1988, pp 57-58) in which  
Keynes's statement is shown to be not only economically destructive as a  
basis for policy but is also deeply amoral, being "a characteristic  
manifestation of an unwillingness to recognise that morals are concerned  
with effects in the long run."   
  
  
Steven Kates