This episode was then overcome by the 
Vietnam war.
But I had better explain first what
my ideas on maturity are all about.
It might be useful to skert this explanation
by reference to the ideas of an author more widely
known, and perhaps familiar to you, R.F. HARROD.
Harrods' equation is based on saving=investment being a constant ?
proportion of national income. I=Sy, and -given ?
investment being (as a trend value, in a ? growth!)
a constant proportion of the addition to national income,
provided the degree of utilisation of capacity remains constant;


I=