Constant and Variable Capital

Constant Capital

Constant capital is represented by the means of production.  Variable capital is the labor power purchased by the capitalist.

Constant capital is not changed by the processes of production, it is simply transferred to the finished product. Variable capital, on the other hand generates new value so we can say that:  (C+V) -- (C + (V+S))

For Marx, the rate of surplus value is then equal to the amount of surplus over the amount of time required to produce it. (S'=s/v).  This is distinct from profit which is the surplus over the total amount required to produce it. P'=s/c+v).  Thus, the rates of surplus value and profit are going to be different.

surplus and labor