SEMAINE D'ÉTUDE SUR LE ROLE DE L’ANALYSE ECONOMETRIQUE ETC. 
Q0QF 
(exponential model, Table V) we find that every macroeconomic 
quantity can be expressed as a function of R,(f), ¢(?), i(¢) and of 
two constants only: 2 and ® In particular we have 
251-6) and (251-12) y= = 
—6- 
251-15) 
ry 0, 
— = 
x 
In this case we ha. 
and in the appendix I have shown that under very general hypo 
theses A remains in the neighbourhood of 1. Thus there is reason 
to believe that, at least as a first approximation, reality can =~ = 
presented by the exponential model. 
If we consider the meaning of relation (250-5), ®_ appears as an 
index of the intellectual difficulty of conceiving roundabout produc- 
tion processes. Thus we can consider it as being practically constant, 
and this hypothesis. seems to be confirmed by the statistical 
data (§ 321). 
6) With the formulae obtained it is possible to estimate 
‘Table VI and VII) the parameter ® since 
221-1) 
We find that the order of marnitude o 
{~ 
I] 
Allais - pag. 200