002 PONTIFICIAE ACADEMIAL SCIENTIARVM SCRIPTA VARIA - 28 
in the past, and I am sure it can still render great services in the 
ature. This is well illustrated by Professor ALIAIS’ results. 
ALLAIS 
As far as the HAAVELMO objection is concerned, I would say 
that naturally every model involves certain simplifications. I do 
not say that this model can represent absolutely the whole of reality. 
But the hypotheses of the model seem to be quite appealing and 
they are justified by the empirical research undertaken. Now the 
conclusions of the model are in complete agreement with facts 
Thus, perhaps we can accept this theory at least as a provisional 
conclusion. 
111 Allais - pag. 306