SEMAINE D'ETUDE SUR LE ROLE DE L ANALYSE ECONOMETRIQUE ETC. 92] 
we have certainly from “ 
(517-7) 
and since à = A 
‘517-8) 
In an apparently paradoxical fashion we see that for this 
condition to hold, the coefficients of high powers of 9 "a the 
expansion of 3((8) and B(0)e"* must be sufficiently large 
Naturally, it follows from the foregoing that in the general 
case, in which the w,_, vanish only at infinity, the conditions 
(517-8) will again be verified if 
517-0) 
which is a relatively weak condition. 
Finally, we see that in the case of hypothesis (517-6), as 
n the cac> ~f the weaker hypothesis (317-9), the inequalitics 
Relation (220-14). 
\*) In the light of the indications given above § will probably be neg 
ative 
111 Allais - pag. 225