In ope-l 4517, Alan wrote:
"We agree constant capital is represented for Marx by the value expressed
in the money paid for it, and variable capital is represented for Marx by
the value expressed in the money paid for it."
I would add that everyone included under the "we" agrees that the general rate
of profit, for Marx, is the ratio of surplus-value to the (actual or revalued)
capital-value advanced, which means that there are not two separate "value"
and "price" rates of profit, but only one.
I think this proposition is an important part of the single-system
interpretation because it makes clear that not only do capital-values depend
on input prices but output prices depend on value production. There is an
interdependence of value and price.
Allin (in ope-l 4518) asks who is included in this "we" (and notes, as Alan
himself did --- "Paul and Allin have never agreed" --- that he is not one of
those so included). Here's a non-exclusive list:
Antonino Callari
Mino Carchedi
Massimo De Angelis
Werner de Haan
John Ernst
Alan Freeman
Paolo Giussani
Andrew Kliman
Chai-on Lee
Ted McGlone
Eduardo Maldonado Filho
Paul Mattick, Jr.