SEMAINE D ÉTUDE SUR LE ROLE DE L ANALYSE ECONOMETRIQUE ETC, 
2933 
where c;;=a,.g; and /; is the j-th component of the normalized 
voN NEUMANN output configuration, ° Nif 
‘erentiating (/7* with respect to F + 
44) 
i -4- Tic as 
where 
1 Aùuoil dF 
Lo ,; / dF,+ 2; du, 
and a; is an (»-1) x (#-1) matrix obtained by omitting the i-th 
row and the :-th column from a; b; and c; are similarly defined. 
As a;+b;+c; is a non-negative matrix with row sums less than 
unity, any diagonal element of (I—a,——b;—c;)7! is greater 
than off-diagonal elements of the corresponding column. On 
the other hand, by our definition of the technical change of the 
labour-saving type, we have 
45, 
In view oi 
m 
+ 
We assume tha. ,, 
positive. 
Si 
Morishima - pag. 2,