SEMAINE D’ETUDE SUR LE ROLE DE L ANALYSE ECONOMETRIQUE ETC. 795 
so that 
(232-3 
From (227-3) and 
(232-4) 
{~ 
164. 
pu 
a’ 
} 
we derive 
A 
<cO 
So 
to 
this condition is more restrictive than the condition (131-8) 
which is valid in a more general case. It could have been 
derived a priori by observing that for invariant values of the 
functions (8) and (0) over time the effect of growth of Re 
s to reduce © in comparison with ©. It thus follows that © 
seems to be a better indicator of the lengthening of the pro- 
duction process than 6. 
[t can thus be seen that while the various formulae giving 
Res (0) and © are dependent on the hypothesis that the rate 
of growth ¢ of primary national income R, is constant, the 
sreceding formulae are independent of this assumption. 
The Expression for kK, 
233. 
(2:5, +, 
Relation (228-3) becomes here from (+. 
p68(6)de 
» 9, 
11| Allais - pag. 9g