Andrew,
In your OPE866, you mention that Sraffa was wrong about
"pricing" inputs and outputs. I do not think so.
1. Unlike many of his followers, he never claimed to be
interpreting Marx.
2. His sole purpose in PRODUCTION OF COMMODITIES BY
MEANS OF COMMODITIES was that of a critique.
I would agree that using the techniques he used can lead one
astray when it comes to moving forward with a theory. But, again,
Sraffa makes no claim to be doing so.
John