Which British economist was Erwin Rothbarth a research assistant for that changed the theory of economics?
Erwin Rothbarth Erwin Rothbarth (16 December 1913 – 25 November 1944) was a German economist and statistician. He worked as a research assistant for John Maynard Keynes and made important contributions to the measurement of GDP and the modelling of individual consumption.
Relations of production Relations of production (German: "Produktionsverhältnisse") is a concept frequently used by Karl Marx and Friedrich Engels in their theory of historical materialism and in "Das Kapital". It is first explicitly used in Marx's published book "The Poverty of Philosophy", although Marx and Engels had already defined the term in "The German Ideology".