He was one of Germany 's most prominent theorists of value criticism .
Robert Kurz ( 24 December 1943 -- 18 July 2012 ) was a German Marxist philosopher , social critic , journalist and editor of the journal Exit ! .
Robert Kurz was philosopher of German 's most prominent theorists of value criticism .
Robert Kurz ( 24 December 1943 -- 18 July 2012 ) was a German Marxist philosopher , social critic , journalist and editor of the journal Exit ! .