The most notable portion of this work is the preface, which contains the first statement of the theory of historical materialism. The relationships of men in social life, says Marx, are determined by the conditions of production, are necessary relationships independent of the individual will; these determined relationships constitute the real foundation upon which is erected the legislative, political, moral, and religious superstructure of every age. The relationships of production, or the economic relationships prevailing at a given period, are a natural and necessary outcome of the method of production, or rather of the historic phase of the instrument of production. But sooner or later the further development of the productive forces generates a new configuration in technical method, a configuration incompatible with the prevailing relationships of production, those correlative to the productive order hitherto dominant. There then occurs an explosion, a social revolution, which disintegrates economic relationships, and, by ricochet, disintegrates existing social relationships, replacing them by better economic relationships, adequate to the new and more highly evolved phase of the productive instrument.
In broad outline it may be said that economic evolution has exhibited four progressive phases; the Asiatic economy, the classical economy, the feudalist economy, and the modern bourgeois or capitalist economy. The evolution of the productive instrument, never arrested in its secular march, will in due course renew the eternally recurrent opposition between the method of production and the relationships of production, rendering these incompatible. Once more will come an explosion, the last of the great social convulsions, whereby the bourgeois economic order will be overthrown and will be replaced by the co-operative commonwealth. This new development will close the primary epoch of the history of human society.
But the work we are discussing is further noteworthy inasmuch as it reflects a special phase of our author's thought, a thought which never ceased to exhibit a struggle between opposing trends and was ever oppressed by their contrast. The book, in fact, shows Marx continually involved in antiquated Hegelian machinery, or proceeding through a chain of categories evolving one from another—capital, landed property, the wage system, the state, foreign commerce, the world market. From each of these categories we may infer how the process of their successive development is accomplished. We are led to infer that the wage system is the outcome of landed proprietorship, for the expropriation of the peasant proprietors produces the proletarianised masses offering labour power for sale; and we are led to infer that the constitution of the world market is the crown and the epilogue of modern capitalist economy. In fact, according to Marx, the historic mission of capitalism based upon wage labour, whose origins go back to the sixteenth century, is the creation of the world market. The world market is now devoted to the colonisation of California and Australia and to the opening of trading ports in China and Japan; its creation marks the climax of capitalism's historic mission, and indicates the approaching end of the economic form which was destined to fulfill it.
Now these ideas, in themselves arbitrary and fantastic, show how Marx's thought at that epoch was still in an undecided or amphibious phase, in which the torrid sun of British economic science had not as yet succeeded in totally dispelling the fogs of German philosophy. But another incompatibility lessens the value of the book or diminishes its doctrinal efficacy; for Marx, at this stage of his studies, invariably gave to the history of doctrine too preponderant a place, introducing it insistently into the course of his own exposition, which was thus deprived of continuity and weakened in force.
Further, the book we are considering did not directly bear upon any of the social questions which strongly arouse public interest, but was restricted to the study of two theories whose importance at first sight seems purely academic, the theory of value and the theory of money.
Marx contended that the value of commodities is exclusively determined by the quantity of labour incorporated into them; he traced the affiliations of this thesis with the work of its first enunciators in Italy and in England; but he did not offer any reasoned demonstration of its truth. On the contrary, he frankly recognised that this contention is full of contradictions alike theoretical and practical, contradictions that appear insoluble; but he promised to vanquish them in the subsequent course of his exposition.
Far more noteworthy is the chapter on money, for it contains a masterly criticism of the quantitative theory of Ricardo, and an effective refutation of the "labour notes" idea of Bray, Gray, Proudhon, and others. According to this plan, every producer performing a certain quantum of labour would receive from the state a voucher entitling him to obtain from other producers the result of an equal quantum of labour; but the suggestion implies complete ignorance of the intrinsic conditions of the individualistic economy, wherein each producer creates an object without any certainty that there will be a market for it, or that it represents a real utility and will fetch a definite price. It obviously follows that the producer cannot be sure that he will be able to sell the article which he has produced, or that he will be able to transform it into anything with universal purchasing power; the product has to be baptised or sanctioned by the market, which alone has power to stamp it as useful by purchasing it.
Now the "labour note" system claims that it can forcibly dispense with the market by supplying to the producer of an article whose utility and saleable value has not been recognised by the market, a universally available purchasing power. The practical outcome of this forcible method is that the producer of a useless article can by means of his "labour note" secure for himself a useful article, whereas the producer of this latter will not in turn be able to exchange his own "labour note" for any object possessing utility; that is to say, the article made by the first producer will find no purchaser, and the "labour note" of the second producer will effect no purchase. This is inevitable, for the proposed reform is inconsistent, eclectic, and incomplete, since it pretends to socialise exchange while maintaining production and distribution upon their old individualistic basis, and overlooks the incongruity of any such supposition.