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.