Re Andrew K #4017: You write: >That is the key question of all quantitative value theory of whatever >stripe (neoclassical, post-Keynesian, Sraffian, etc.), IMHO. The answer >depends on the theory in question. P[t] is given BEFORE production, and >let's assume A and B are given. Then either the P[t+1] are determined >exogenously (e.g., by "demand," as in PK theory) which then determines r; >or r is determined exogenously, which then determines the P[t+1]. "Endogenously"? [...] >So what? What is the justification for holding the matrix of >technological and real wage coefficients, A, constant over time? I think it's implicitly assumed the existence of some kind of "Walrasian auctionner" who solves the system *atemporally* in such a way that input and output prices are the same. Market is then conceived as a kind of "computer" searching for equilibrium given some parameters. Additionally, it sounds pretty "materialistic" to use technology and real wage as the parameters used to determine prices. A.R.
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