Maurice Potron (1872-1942) is a French Jesuit and mathematician whose main source of inspiration in economics is the encyclical Rerum Novarum. With virtually no knowledge in economic theory, he wrote down a linear model of production in which he formalized the notions of just prices and just...

Is the neo-Ricardian conception of prices, as formalized and studied by Sraffa, an alternative to the marginalist theory? The "post-classical program" presumes a positive answer: the Sraffian construction then appears as a prelude to a critique of economic theory, which might be complemented by...