1140 PONTIFICIAE ACADEMIAE SCIENTIARVM SCRIPTA VARIA - 2& 
MAHALANOBIS 
Please I do not quite understand. There is a footnote on page 7 
which perhaps could give vou the right answer. 
ALLAIS 
Yes, but if you could give this explanation in a few words. This 
point is quite important because for reasons I have already explained, 
it is not possible to admit that real national income is proportional 
to real capital. 
MAHALANOBIS 
The equation of the model? How we derive it? (1) 
() The’ two-sector model is discussed in a paper entitled Some _obser- 
vation on the process of growth of national income in « Sankhva, the 
Indian Tournal of ‘Statistics ». vol. 12. Parts 4. 1042 
151 Mahalanobis IT - pag. 28