9
means that a hypothetical shift of labour from the non-basics to the
basics is assumed, and the net product is then measured in terms of the
latter, (One might say that in this form "labour value" still plays a
role!)
According to the second method of measuring the net product we make use
of the maximum profit rate and of the prices p* based thereupon. The
idea must clearly be that we ascertain the net product in physical
terms, and price each item of it with the maximum profit prices p*. We
obtain then a system of prices and we have only to find weights for the
commodities to define the net product.
It will be natural to try and proceed in a manner analogous or symmetric
to the first method above.
Analogy is found in the following: We have to introduce quantities for
the various industries. We are in principle free to choose these weights
q as we please because the resulting measure of the net product will
always be invariant with respect to distribution.
But we have now to choose between two different ways of doing it. We may
confine ourselves to the basics, in perfect symmetry to the former
method. In this case we shall apply the weights q* obtained by the
former method, because these weights together with the condition
l f q*= 1 will be a guarantee that the equivalent of the resources
absorbed by the non-basics is absorbed by the basics. It follows
that the solution of the problem i.e. the expression for the net product
= 1 .
p* ! ( I - A ) q*
( 12 )