2. Material, simple or compound, on which labour is employed.
3. Subsistence of labourers.
Of these three parts, the first constitutes Fixed Capital: the second and third, Reproducible Capital.
Since Capital is derived from Labour, whatever economizes Labour assists the growth of Capital.
Machinery economizes Labour, and therefore assists the growth of Capital.
The growth of Capital increases the demand for Labour.
Machinery, by assisting the growth of Capital, therefore increases the demand for Labour.
In other words, Productive Industry is proportioned to Capital, whether that Capital be fixed or reproducible.
The interests of the two classes of producers, Labourers and Capitalists, are therefore the same; the prosperity of both depending on the accumulation of Capital.