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comments: I did not make only one computation, I made very many 
of them covering a wide range of different factual assumptions. 
Examining the implicit magnitudes of capital coefficients reflecting 
various estimates of the present rate of income growth and of produc- 
tive investment in underdeveloped countries, we find them to be in 
some cases considerably higher, and in others much lower than could 
be realistically expected. In most instances they appear to be quite 
plausible. I am inclined to interpret such consistency as representing 
indirect evidence in support of my conclusions. 
FISHER 
Professor LEONTIEF has presented a highly interesting paper. 
find most attractive the idea of watching economic history with ac- 
companying illustrations. LEONTIEF has in fact produced interesting 
pictures of what happens when the economy is open to foreign trade 
and foreign trade either outgoing or ingoing is cut off. One might 
also consider applying the same technique to the study of the depen- 
dence of the economy on particular industries. For example, one 
might open the system to the steel industry and see what would 
happen if deliveries from or to that industry were cut off. The 
pictures one would get from applying LEONTIEF’s technique to such 
analyses would provide interesting insights into dependence of the 
economy on particular industries or sectors. 
ALLAIT 
Prof. LEONTIEF has very rightly stressed that he has made calcu- 
lations with different values of the coefficients b, and b. But my 
point is that it is not sufficient to consider values of the capital citput 
ratios b, and b,. It is also necessary to take into account the coef- 
ficient 3 which is of the order of 0.2. Then the b would be replaced 
| Leontief - pag. 25