Piero Sraffa (* 5 August 1898 in Turin; " 3 September 1983 in
Cambridge, Great Britain) was an Italian economist. Sraffa
developed a theory of the production prices. Its beginning is
that each commodity needs goods in a certain quantity for its
production. For each commodity thus an equation can be set up,
in which one specifies, which is necessary for their production
other goods in which quantities. If this happened for each
commodity, I received a set of equations, which indicates, in
which relationship the different goods to be exchanged to have.
If a commodity of the is, then all prices are given. However the
set of equations has still one "degree of freedom ", so that a
size of, for instance the wages, must be specified. If one
assumes for example the workers must buy a certain Warenkorb, so
that they can receive their worker (Subsistenzlohn), then this
definition took place. When "remainder size remains "the profit
and a profit rate leaves itself also to then calculate, which is
the lower, the is speci