Unibg International -
Unibg International

e) Jean Cartelier (Paris-Ouest University Economix, France)
The positive surplus hypothesis: physical versus social objectivity

The purpose of the paper is to discuss the kind of objectivity which allows Sraffa to deal with two different economies, one without and the other with a surplus product.

Whether it makes or it does not make sense to take the technique as being physically given (i.e. observable from a "man fallen from the moon") is at the heart of the matter.

It is shown that the only relevant objectivity is not physical but social. What is called 'technique' crucially depends on the social conditions of production. Two propositions are demonstrated: (i) in Sraffa's framework, if market prices are equal to natural prices, any market economy where all producers are independent has zero surplus product (ii) A surplus product may be objectively observed only if workers are wage-earners working for entrepreneurs.

Better than 'techniques' or 'physical commodities', monetary relations objectively reveal the crucial difference between a simple market economy and a market economy with surplus. A brief illustration is provided.

sponsored by
Department of Economics
Faculty of Economics
University of Bergamo


December 21-22, 2010
aula 3, via Salvecchio 19
University of Bergamo - Bergamo Alta, Italy