A note on a proof of F. Hahn concerning the gross substitutability

Giovanni P. Crespi, Giorgio Giorgi

Abstract


The aim of this note is to investigate the assumptions and the proofs of some results by F. Hahn, which have been stated in several other classics of Economic Theory. The results deal with the relations between the gross substitutability and the weak axiom of revealed preference, in a pure exchange economy, ruled by the Walras law.

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DOI: http://dx.doi.org/10.1478/C1A0701005