92 
POLITICAL ECONOMY 
speaking, society is rendered more productive 
when its productive activities are made more 
responsive to the needs of the community. 
Such responsiveness can only be secured when 
the population, either directly or through the 
disposal of the rising generation, is mobile 
geographically and as between trades. Finally 
let us not forget, particularly when studying 
economics, that too great a sacrifice of real 
but intangible goods may easily be made to 
get greater tangible possessions.