SEMAINE D'ÉTUDE SUR LE ROLE DE L ANALYSE ECONOMETRIQUE ETC. 
283 
à a 
plore — 
Jy dt 
(79) 
For the firsy t 
{ai =} which © 
(79a 
| (790) 
1 
vw 
choose an attainable path 
Lr =((~ , 
| (79¢) T 
where 23€ and the number T* T+1 are still subject to late. 
choice. In addition, T should be sufficiently large thai, besides 
(76), there exists an attainable path (x5, 2%) on [c. T1 sucw tha 
2 =%+7. 
To obtain a lower bound on the first term in (7) we note 
that, in view of Assumption (c) and (38 9%, there cast num- 
bers 1,>0 and y>o such that. whenever 71, 
[8a 
implies 
—— AK 
ae) 4 
Hence, it 0< v=7, and «= wg(2+7,),, we have from (79 a 
and (38 b), in analogy to (78), 
4 
Koopmans - pag. 5c