of the person concerned, th© tin© curve during the life 
being called the carrier. The carrier will, of course, 
depend to sons extent on the education, so that w© have 
a link with the element froa which we started. 
Can we assume that the hierarchy of grades evolves on 
known patterns leading to skew distributions? 
Such a pattern would result froa a general consideration 
of the growing complication of society. As a result of 
scientific and technological developments the amount of 
information which must be held in store ready for use 
increases steadily, This leads to specials ;jatiom Here 
or there a specialist splits off froa a qualification 
because th© Information cannot be managed any more, it 
has to be divided, Th© specialist usually will represent 
a higher grade than the qualification froa which^bplits 
off. If specialists are generated as in a birth process, 
each grade bringing forth new specialists one grade 
higher in proportion to the parent population ox each 
grade then we should obtain the logarithmic growth 
characteristic of th® diffusion processes in economics. 
In addition we require as a second assumption that 
growing pyramids (or hierarchies) of the type described 
exist at different ages - in different stages of develop 
ment - one beside the other at the same timej awH further 
that this age is exponentially distributed.