question must be faced seriously. Suppose, for example, that you have
now a total budget of 900 million pounds, and that, in the course of
time, all values are expressed at half the present currency figure.
Imagine that the national income in this instance is 3600 million
pounds. Then the burden, on a first approximation, is 25 per cent. Now,
if the whole budget is responsive, we may find it ultimately at 450
million pounds out of a national income of 1800 million pounds, _i.e._
still 25 per cent. But let the non-responsive portion be 400 million
pounds, then your total budget will be 650 million pounds out of a
national income of about 2000 million pounds, or 33-1/3 per cent., and
every alteration in prices--or what we call "improvement" in the cost of
living--becomes an extraordinarily serious matter as a burden upon new
enterprise in the future.

Let me give you a homely and familiar illustration. During the war the
nation has borrowed something that is equivalent to a pair of boots.
When the time comes for paying back the loan it repays something which
is equivalent to two pairs or, possibly, even to three pairs. If the
total number of boots produced has not altered, you will see what an
increasing "pull" this is upon production. There are, of course, two
ways in which this increasing pull--while a great boon to the person who
is being repaid--must be an increased burden to the individual. Firstly,
if the number of people making boots increases substantially, it may
still be only one pair of boots for the same volume of production, if
the burden is spread over that larger volume. Secondly, even supposing
that the number of individuals is not increased, if the arts of
production have so improved that two pairs can be produced with the same
effort as was formerly necessary for one, then the debt may be repaid by
them without the burden being actually heavier than before.