Economics wealth (capital) and a constant population size. Marxist (later, Marxian) economics descends from classical economics. It derives from the work of Karl Marx. The first volume of Marx's major work, "Das Kapital", was published in German in 1867. In it, Marx focused on the labour theory of value and the theory of surplus value which, he believed, explained the exploitation of labour by capital. The labour theory of value held that the value of an exchanged commodity was determined by the labour that went into its production and the theory of surplus value demonstrated how the workers only got paid
Karl Marx (composer) music publisher C. F. Peters in the State Archive Leipzig • Works by and about Karl Marx in the catalogue of the Deutsche Nationalbibliothek Karl Marx (composer) Karl Marx (* 12. November 1897 in Munich; † 8. May 1985 in Stuttgart) was a German composer and music teacher. Karl Marx was the son of Josef Marx and his wife Emilie, née Eheberg. After early violin and piano lessons, Karl Marx first studied natural sciences at the Ludwig Maximilian University in Munich in 1916. His encounter with Carl Orff, during whom he took private composition lessons after the World War I,