SEMAINE D’ ETUDE SUR LE ROLE DE L ANALYSE ECONOMETRIOUE ETC. 
14C 
and 
(6ga-c) 
Evi, vi; 2) = E(Va, Vogsr 
E(v 
H 
-' 9 
The reduced form: 
(70a-b) ) , 
| 
' 
4 
FTV. 
,+v, with E(q,l;,. 
The corresponding BEID-system. The primary for... 
(71a-b) 
ye 
/ 
WY 
Ly 
- 4% 
and 
(72a-b) 
* * * * * * 
E(vy, Viger) =E(vy Va ak) = E(vy, Vor) <0; R=TI, 4, … 
Reduced form: 
(73a-b) 
{vo 
WIL. E(p;lPe_1, 
Elo ¢ 
giving 
(74) 
{1 Wold - pag. 35