[fre] Après s'être interrogé sur l'importance réelle d'un débat sur la « spécificité » de l'économie politique classique et avoir mis en doute l'existence d'un unique programme néo-ricardien de recherches, l'article souligne la portée du processus d'élimination d'erreurs qui a été...

The topic of joint production theory has played a central role in neo-classical criticism of classical theory, in Sraffa’s proposed rehabilitation of classical theory, and in some Sraffa-based criticisms of Marxian theory. This prominence is not surprising for joint production (and the related...

In 1960, Piero Sraffa’s Production of Commodities by Means of Commodities considered the fundamental issues that had been ignored in some existing theories of capital, value and distribution, and by doing so he laid the foundations for a critique of the marginal theory of value and...

When a set of industries is kept in long-run equilibrium, it is never possible to change just one price at a time. But when various (or all) prices are changing, the direction of change of any one price can depend on the numéraire adopted. What does it mean, then, to say that a long-run supply...

We consider, for alternative models of production, the comparative statics of constant-returns economies in long run competitive equilibrium, for which reswitching, capital-reversing and consumption-reversal are all completely absent. Notwithstanding the 'well-behaved' nature of these economies,...

In a two-sector model it is entirely arbitrary to take the depreciation rate to be the same in both sectors; capital is being used differently in the two sectors! With differential depreciation rates factor-intensity-reversal can arise even when both sectors have a Cobb-Douglas technology....

To be of practical use comparative statics must be able to compare long-period equilibria. Such equilibria will almost never have price vectors that are proportional with respect to all prices but one-yet such price vectors are precisely those underlying the usual substitution effect analysis....