Marx was only led even to this conclusion, in relation to the value of the materials, because he saw the reduction in its value, being limited by its nature as derived from agriculture.
“... some kinds of raw materials, such as wool, silk, leather, are produced by animal organic processes, while cotton, linen, etc., are produced by vegetable organic processes and capitalist production has not yet succeeded, and never will succeed in mastering these processes in the same way as it has mastered purely mechanical or inorganic chemical processes. Raw materials such as skins, etc., and other animal products become dearer partly because the insipid law of rent increases the value of these products as civilisation advances. As far as coal and metal (wood) are concerned, they become much cheaper with the advance of production; this will however become more difficult as mines are exhausted, etc.”(ibid)
But, as I have set out elsewhere, not only does Marx set out some of the factors that contradict that conclusion, such as the reduction in waste, the use of new materials, improved use of auxiliary materials (particularly energy), but the introduction of synthetic materials, changes in the types of commodities and so on, mean that even this argument for a rising organic composition does not hold. Still less does it hold, in economies where the main production of value and surplus value, has moved to service industries rather than manufacture.
So, there is, really, no basis for arguing that c rises relative to v + s, in the long run, and so no basis for any significant tendency for the rate of profit to fall. However, there is, for these same reasons, a very good basis for there being a regular cycle in which the rate of profit rises and falls, because it is squeezed by a rise in relative wages, as industrial capital grows faster than the supply of labour/social working-day, a crisis of overproduction of capital relative to labour, as Marx describes it in Capital III, Chapter 15.
“As soon as capital would, therefore, have grown in such a ratio to the labouring population that neither the absolute working-time supplied by this population, nor the relative surplus working-time, could be expanded any further (this last would not be feasible at any rate in the case when the demand for labour were so strong that there were a tendency for wages to rise); at a point, therefore, when the increased capital produced just as much, or even less, surplus-value than it did before its increase, there would be absolute over-production of capital; i.e., the increased capital C + ΔC would produce no more, or even less, profit than capital C before its expansion by ΔC. In both cases there would be a steep and sudden fall in the general rate of profit, but this time due to a change in the composition of capital not caused by the development of the productive forces, but rather by a rise in the money-value of the variable capital (because of increased wages) and the corresponding reduction in the proportion of surplus-labour to necessary labour.”
If we go back to Marx's analysis of relative surplus value in Capital I, the first form, as set out, has limited life, because other producers adopt the same machine/technology. However, Marx explains that relative surplus value has a second form. If the value of wage goods fall, as a result of the rise in productivity, a smaller portion of the working-day is taken up as necessary labour. A larger proportion is, now, surplus labour. The rate of surplus value rises. For this to resolve a crisis of overproduction of capital, relative to labour supply it must be a generalised technological revolution, not just a piecemeal change in one or two industries. That is what happens with the introduction of steam engines, electric motors, internal combustion engines, assembly lines, and with microchips.
After each of these generalised technological revolutions, the crisis of overproduction of capital, relative to labour, reverses. It becomes a crisis for labour, which is, now, again, overproduced relative to capital. A relative surplus population. The surplus or net product rises, relative to the gross product, creating a period of relatively slower growth. As profit, the money equivalent of the surplus product, rises, whilst gross output grows at slower pace, the rate of interest falls (because the supply of this loanable money-capital, thereby, rises, relative to the demand for it for capital accumulation). It causes asset pries and speculation to rise, leading to asset price bubbles.
No comments:
Post a Comment