Dear Colin, In the course of researching my thesis on "economists writing history in mid 20th century France and U.S", I have done some work on Francois Perroux and his status in the French economics landscape in the 1950s and 1960s. I would be happy to send the chapter of my thesis that deals (in part) with him, and where you may find relevant bibliographical references. Cristel de Rouvray (LSE)