Media type: E-Article Title: Duration, Intensity and Productivity of Labour and the Distinction between Absolute and Relative Surplus-value Contributor: Mavroudeas, Stavros; Ioannides, Alexis Published: Informa UK Limited, 2011 Published in: Review of Political Economy, 23 (2011) 3, Seite 421-437 Language: English DOI: 10.1080/09538259.2011.583833 ISSN: 0953-8259; 1465-3982 Origination: Footnote: