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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.