19 
II. 3orao3 Incone 
In dealing with unearned income, wealth had been used 
os o abate variable* It is natural to extend this idea. 
Incone depends also on education, training, status, 
fondly connections etc, -.rkich are in c cense inherited 
Hire wealth., end result fron a oosrt of "iaveotnent" of 
incone by preceding generations, On an abstect level 
wo can spool: of "Incore potential” which eebodiea oil 
the forms of 8 invostnent M mentioned* Shore ore certain 
differences between the various form of income poten- 
tic Is liiecstion is passed on to the children os they 
grow up, while the inheritance of wealth has usually 
to wait for the dor. 
It is tempting to speculate on on equalization of the roto 
of return between the different forme of investment} this 
wcmlu. ruihe it* easy to gonorrliae results on the distri 
bution of ineomo. Wo know, however, -that equalisation 
of return is not likely* And we must beware of drawing 
to close a parallel between naterial wealth and 
educational investment. It aeons that beyond a certain 
range it is loss end less easy to increase educational 
investednt further. Of course, there is no absolute 
limit: Indeed there nre always possibilities of further 
investment (in learning on the ^ob), an: the quality of