Das Kapital sciences published before 1950. In "Das Kapital" (1867), Marx proposes that the motivating force of capitalism is in the exploitation of labor, whose unpaid work is the ultimate source of surplus value. The owner of the means of production is able to claim the right to this surplus value because he or she is legally protected by the ruling regime through property rights and the legally established distribution of shares which are by law only to be distributed to company owners and their board members. The historical section shows how these rights were acquired in the first place chiefly through
Theories of Surplus Value "Das Kapital" and in several letters during the following ten years, Friedrich Engels had indicated his intention to publish the manuscript of "Theories of surplus-value". However, although he succeeded in publishing the second and third volume of ‘’Das Kapital’’, he was unable to publish the "Theories" before he died in 1895. The out-of-print Progress Publishers English edition of TSV is available online: Theories of Surplus Value Theories of Surplus Value () is a draft manuscript written by Karl Marx between January 1862 and July 1863. It is mainly concerned with the West European theorizing about "Mehrwert" (added value or surplus-value)