>John now says:
>
>I agree that prices of production are an abstraction. However,
>they are more concrete than what we find in Vol. I and Vol II of
>CAPITAL. That was my point. To be clearer, let me say start
>from the real world you describe and abstract until you get to
>the level of PoP. You are still at a level more concrete than
>that which comes before PoP in CAPITAL.
>
Paul
----
I would say that values and prices of production are at the
same level of astraction. In the case of values we abstract
from random deviations of market prices and also abstract from
any tendancy of profit rates to equalise. In the case of PoP
we abstract from random deviations and also from any tendancy
of rates of surplus value to equalise.
The fact that Marx's volume dealing with it came latter does
not establish its actual level of abstraction.
Paul Cockshott
wpc@cs.strath.ac.uk
http://www.cs.strath.ac.uk/CS/Biog/wpc/index.html