Reinhardt on Efficiency

Princeton's Uwe Reinhardt offers a thoughtful and thought-provoking perspective on economists' use of the concept of efficiency.

I know that Uwe has used my Principles of Micro textbook in his introductory class.  So his commentary on "modern textbooks" is, at least to some extent, directed at me. (In particular, I suspect he has chapters 7, 8, and 9 in mind.)  Uwe also provides some useful links to handouts he gives to his class.

Update: Steven Landsburg responds.