SEMAINE D ETUDE SUR LE ROLE DE L’ANALYSE ECONOMETRIQUE ETC. 749 
Amortization Pv" 
rar. We have (relation Zi 
121-1) 
a, 
ony 7 
174 A) 
so that 
121-2) 
4 
Thus the average duration of the amortization period 1. 
invariant over time. 
Consumed National Income 
"22, 
122-1) 
We deduce from relations (+, 4, (120-1) anu 
oo . - 
Re(2) = Rolf) [ ce B)as 
J20 «4 
whence 
122-2) 
À 
Se 
4 
A 
KR. 
tas 
[ 
, Allais - pag. 5.