This conversion of capital from its original form, from the starting point of all capitalist production, into means of production, dead and living, such as raw materials, instruments, and labour; its further conversion into commodities by a living labour process; and its final reconversion into money, a greater amount of money indeed than at the initial stage—this transformation of capital is, however, required for more than the production and appropriation of surplus value. The aim and incentive of capitalist production is not a surplus value pure and simple, to be appropriated in any desired quantity, but a surplus value ever growing into larger quantities, surplus value ad infinitum. But to achieve this aim, the same magic means must be used over and over again, the means of capitalist production—the ever repeated appropriation of the proceeds of unpaid wage labour in the process of commodity manufacture, and the subsequent realisation of the commodities so produced.
Thus quite a new incentive is given to constantly renewed production, to the process of reproduction as a regular phenomenon in capitalist society, an incentive unknown to any other system of production. In every other economic system known to history, reproduction is determined by the unceasing need of society for consumer goods, whether they are the needs of all the workers determined in a democratic manner as in an agrarian and communist market community, or the despotically determined needs of an antagonistic class society, as in an economy of slave labour or corvée and the like. But in a capitalist system of production, it is not consideration of social needs which actuates the individual private producer who alone matters in this connection. His production is determined entirely by the effective demand, and even this is to him a mere means for the realisation of surplus value which for him is indispensable. Appropriation of surplus value is his real incentive, and production of consumer goods for the satisfaction of the effective demand is only a detour when we look to the real motive, that of appropriation of surplus value, although for the individual capitalist it is also a rule of necessity. This motive, to appropriate surplus value, also urges him to re-engage in reproduction over and over again. It is the production of surplus value which turns reproduction of social necessities into a perpetuum mobile. Reproduction, for its part, can obviously be only resumed when the products of the previous period, the commodities, have been realised; that is, converted into money; for capital in the form of money, in the form of pure value, must always be the starting point of reproduction in a capitalist system. The first condition of reproduction for the capitalist producer is thus seen to be a successful realisation of the commodities produced during the preceding period of production.
Now we come to a second important point. Under a system of private economy, it is the individual producer who determines the volume of reproduction at his discretion. His main incentive is appropriation of surplus value, indeed an appropriation increasing as rapidly as possible. An accelerated appropriation of surplus value, however, necessitates an increased production of capital to generate this surplus value. Here a large-scale enterprise enjoys advantages over a small one in every respect. In fine, the capitalist method of production furnishes not only a permanent incentive to reproduction in general, but also a motive for its expansion, for reproduction on an ever larger scale.
Nor is that all. Capitalist methods of production do more than awaken in the capitalist this thirst for surplus value whereby he is impelled to ceaseless expansion of reproduction. Expansion becomes in truth a coercive law, an economic condition of existence for the individual capitalist. Under the rule of competition, cheapness of commodities is the most important weapon of the individual capitalist in his struggle for a place in the market. Now all methods of reducing the cost of commodity production permanently amount in the end to an expansion of production; excepting those only which aim at a specific increase of the rate of surplus value by measures such as wage-cutting or lengthening the hours of work. As for these latter devices, they are as such likely to encounter many obstacles. In this respect, a large enterprise invariably enjoys advantages of every kind over a small or medium concern. They may range from a saving in premises or instruments, in the application of more efficient means of production, in extensive replacement of manual labour by machinery, down to a speedy exploitation of a favourable turn of the market so as to acquire raw materials cheaply. Within very wide limits, these advantages increase in direct proportion to the expansion of the enterprise. Thus, as soon as a few capitalist enterprises have been enlarged, competition itself forces all others to expand likewise. Expansion becomes a condition of existence. A growing tendency towards reproduction at a progressively increasing scale thus ensues, which spreads automatically like a tidal wave over ever larger surfaces of reproduction.
Expanding reproduction is not a new discovery of capital. On the contrary, it had been the rule since time immemorial in every form of society that displayed economic and cultural progress. It is true, of course, that simple reproduction as a mere continuous repetition of the process of production on the same scale as before can be observed over long periods of social history. In the ancient agrarian and communist village communities, for instance, increase in population did not lead to a gradual expansion of production, but rather to the new generation being expelled and the subsequent founding of equally small and self-sufficient colonies. The old small handicraft units of India and China provide similar instances of a traditional repetition of production in the same forms and on the same scale, handed down from generation to generation. But simple reproduction is in all these cases the source and unmistakable sign of a general economic and cultural stagnation. No important forward step in production, no memorial of civilisation, such as the great waterworks of the East, the pyramids of Egypt, the military roads of Rome, the Arts and Sciences of Greece, or the development of craftsmanship and towns in the Middle Ages would have been possible without expanding reproduction; for the basis and also the social incentive for a decisive advancement of civilisation lies solely in the gradual expansion of production beyond immediate requirements, and in a continual growth of the population itself as well as of its demands.
Exchange in particular, which brought about a class society, and its historical development into the capitalist form of economy, would have been unthinkable without expanding reproduction. In a capitalist society, moreover, expanding reproduction acquires certain characteristics. As we have already mentioned, it becomes right away a coercive law to the individual capitalist. Capitalist methods of production do not exclude simple or even retrogressive reproduction; indeed, this is responsible for the periodical phenomenon of crises following phases, likewise periodical, of overstrained expansion of reproduction in times of boom. But ignoring periodical fluctuations, the general trend of reproduction is ever towards expansion. For the individual capitalist, failure to keep abreast of this expansion means quitting the competitive struggle, economic death.
Moreover, there are certain other aspects to be considered. The concept of expanding reproduction applies only to the quantity of products, to the aggregate of manufactured objects. So long as production rests solely or mainly upon a natural economy, consumption determines the extent and character of the individual labour process, as well as that of reproduction in general, as an end in itself: this applies to the agrarian and communist village communities of India, to the Roman villa with its economy of slave labour, and to the medieval feudal farm based on corvée. But the picture is different in a capitalist economic system. Capitalist production is not production for the purpose of consumption, it is production for the purpose of creating value. The whole process of production as well as of reproduction