On Wed, 28 Aug 1996, Gil Skillman wrote:
> Paul writes:
> 
> >Gil, in an overall empirical study, you are of course correct that s/v 
> >cannot be taken as constant.  Holding s/v constant, however, does help 
> >theoretically to understand a "technical" cause for declining r.  My 
> >reply to Gerry may help here.
> 
> My concern is more than just empirical, Paul, it has to do with the logical
> coherence of the associated theory.  To hold s/v constant while allowing c/v
> to vary is to assert that these terms are independent of each other.  But
> this is far from obvious.  Marx specifies in Vol. I that the specific
> implication of real subsumption is that it promotes relative surplus value,
> i.e. raises s as it lowers v.  Thus the engine that drives rising organic
> composition of capital must also be expected, in the absence of explicit
> argument, to drive a rising rate of surplus value, so that it is
> theoretically suspect at best to hold the latter constant while allowing the
> former to increase.
> Whatever else it is worth, the Okishio theorem provides a plausible
> illustration of this problem. 
> 
> In solidarity, Gil
> 
My reply to Jerry addressed this, I believe.  You are using a kind of 
general equilibrium approach, or a kind of "reduced form", while I am 
interpreting Marx to be "abstracting from changing s/v" for the 
discussion of the falling tendency.   You are correct that Okishio 
approaches problem similarly to yourself.
Paul