560 PONTIFICIAE ACADÉMIAE SCIENTIARVM SCRIPTA VARIA - 28 
Agriculture seems to be one of the most typical sectors of this 
kind. 
To sum up, we may say that, as time goes on, the whole 
structure of employment changes, in the sense that the propor- 
tions in which total employment is distributed among the dif- 
ferent sectors of the system are changing. However, actual 
dismissal of workers from some sectors will take place only in 
those cases where the increase in population is not enough to 
counter-balance the effect of a decreasing per-capita demand 
or of an increasing productivity, or of the algebraic sum of the 
two. This means that the higher the rate of population growth 
(when the capital accumulation needed to absorb it can easily 
be afforded), the easier it is for an economic system to adapt 
itself to a given structural process of change of employment. 
3. The movements through time of the sectoral capital- 
output ratios also follow straightforwardly from the previous 
analysis, namely from expressions (III.14) and from the dy- 
namic movements (V.13) and (V.14). Here they can perhaps 
be better examined by considering their reciprocals. which 
emerge as follows: 
WV. 17) 
1 £ An (0) (0, ~0pt 
x (NT a, (0) 
1=1, 2, ... Xx(f). 
(V.2n) 
£E+7;—0:+5>0. 1=1, 2, ... x(D) 
We may say that, when all (V.1n)-(V.2n) are satisfied, the model retains all 
its properties. But if some of these inequalities should be reversed, then in 
order to tell what will happen one needs more information about the degree 
of flexibility of capital — in the case of V.1n) — and about the degree of 
mobility of labour — in the case of (V.an). If no mobility of capital or 
Of labour is possible between one sector and the others, then some idle 
capacity — in the case of (V.1n) — and some technological unemployment 
in the case of (V.2n) — are bound to appear 
10] Pasinetti - pag. qo