SEMAINE D’ETUDE SUR LE ROLE DE L ANALYSE ECONOMETRIQUE ETC. 745 
The General Case of a Dynamic Process 
The generalization of these different results follows imme- 
diately. In the case of a non-stationary process and assuming 
k-order homogeneity, we have 
Jd. 
'117-" 
>, 
where Rc represents the change in Re when ¢ changes by &¢. 
Naturally, taking into account equation (111-6) it is further 
possible to write 
- 7 
117-19) 
St1-0) ¢ (t-0) 
-0 
mp 
1-0)¢ 
Au) a 
t-60 
Jd ou 
This is the fundamental relation from which the different 
real values in the present paper are derived. 
Allais - pag. 4¢