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
Circulating capital production. In contrast to fixed capital, it is used up in every cycle (raw materials, basic and intermediate materials, combustible, energy…). In accounting, the circulating capital comes under the heading of current assets. Building on the work of Quesnay and Turgot, Adam Smith (1776) made the first explicit distinction between fixed and circulating capital. In his usage, circulating capital includes wages and labour maintenance, money, and inputs from land, mines, and fisheries associated with production. According to Karl Marx (second volume of Das Kapital, end of chapter 7) the turnover of capital influences "the processes of production and self-expansion", the