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Michael Roberts — Pluralism in economics: mainstream, heterodox and Marxist

Summary:
So it was great that I had been invited to present the case for the contribution of Marxist economics, along with Carolina Alves, the Joan Robinson fellow at Girton College, Cambridge. In my presentation (see my PP here The contribution of Marxian economics), I outlined the differences in theory and policy, both micro and macro between mainstream neoclassical economics, the heterodox alternatives (Keynesian, post-Keynesian, institutional and Austrian) and the Marxist. I see this as three ‘schools’ of thought – something that some participants from the heterodox wing found strange. Why was Marxian economics not subsumed within the heterodox? For me, the answer was simple. There was one thing that unites the mainstream and the heterodox (in every form) and one thing in which Marxian

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So it was great that I had been invited to present the case for the contribution of Marxist economics, along with Carolina Alves, the Joan Robinson fellow at Girton College, Cambridge. In my presentation (see my PP here The contribution of Marxian economics), I outlined the differences in theory and policy, both micro and macro between mainstream neoclassical economics, the heterodox alternatives (Keynesian, post-Keynesian, institutional and Austrian) and the Marxist.
I see this as three ‘schools’ of thought – something that some participants from the heterodox wing found strange. Why was Marxian economics not subsumed within the heterodox? For me, the answer was simple. There was one thing that unites the mainstream and the heterodox (in every form) and one thing in which Marxian economics stood out: namely the labour theory of value and surplus value. The neoclassical and all the heterodox from Keynes to Kalecki, Robinson, Minsky, Keen and the MMTers deny the validity and relevance of Marx’s key contribution to understanding the capitalist system: that is it is a system of production for profit; and profits emerge from the exploitation of labour power – where value and surplus value arises. Value does not come from marginal utility (individual satisfaction) or marginal productivity (return on factor input) but from exploitation, realised in the sale of commodities for a profit. 
Capitalism is a monetary economy where production is for profit, not need. This glaringly obvious reality is denied by the mainstream (where there is no profit “at the margin”) and also by the heterodox who either accept marginalism or reckon profit comes from ‘monopoly’ or ‘power’ or from ‘financialisation’ – but not from the exploitation of labour power.
For me, Marx’s explanation is not only correct in reality, it is also necessary in order to clarify the very process of accumulation and endemic crisis within capitalism – all other schools of economics fall short on this.
Michael Roberts
Mike Norman
Mike Norman is an economist and veteran trader whose career has spanned over 30 years on Wall Street. He is a former member and trader on the CME, NYMEX, COMEX and NYFE and he managed money for one of the largest hedge funds and ran a prop trading desk for Credit Suisse.

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