1. These comments during the conference led to an exchange of letters between the two economists a few days later. 14 The debate quickly shifted from the discussion of income versus output as appropriate variables explaining investment, to a debate around the methodology of statistical inference. Leontief argued that the selection of profits was a symptom of statistical formalism, and ended his letter by asserting, somewhat ironically, that he had so far restrained himself from being too controversial in his "impassionate plea for realistic analysis;Folder 'NBER Conference,1949
2. Is the Constancy of Technical Coefficients a Matter of Tolerance?;Amanar Akhabbar;In 15th Conference of the International Input-Output Association,2005
3. L'�trange victoire. Wassily Leontief et la transformation de la science �conomique;Revue Europ�enne des Sciences Sociales,2010
4. Samuelson and the Non-Substitution Theorem: Some Methodological Remarks;Economics and Other Branches: In the Shade of the Oak Tree; Essays in Honour of Pascal Bridel,2014