IV. Relative Overpopulation

Its propagation is inseparable from, and hastened by, the development of the productivity of labour as expressed by a fall in the rate of profit. The relative overpopulation becomes so much more apparent in a country, the more the capitalist mode of production is developed in it. This, again, is the reason why, on the one hand, the more or less imperfect subordination of labour to capital continues in many branches of production, and continues longer than seems at first glance compatible with the general stage of development. This is due to the cheapness and abundance of disposable or unemployed wage labourers, and to the greater resistance, which some branches of production, by their very nature, render to the transformation of manual work into machine production. On the other hand, new lines of production are opened up, especially for the production of luxuries, and it is these that take as their basis this relative overpopulation, often set free in other lines of production through the increase of their constant capital. These new lines start out predominantly with living labour, and by degrees pass through the same evolution as the other lines of production. In either case the variable capital makes up a considerable portion of the total capital and wages are below the average, so that both the rate and mass of surplus value in these lines of production are unusually high. Since the general rate of profit is formed by levelling the rates of profit in the individual branches of production, however, the same factor which brings about the tendency in the rate of profit to fall, again produces a counterbalance to this tendency and more or less paralyses its effects.