Since the late 1960s, research in the field of general equilibrium theory has focused on economies in which spot markets for commodities coexist with some asset markets and trade takes place sequentially over time. The study of ‘sequential economies’ has developed along two paths inspired by...

In two passages of Production of Commodities, Sraffa states very concisely that the analysis presented also applies to viable economic systems in which the means of production consumed are not fully replaced. This aspect of the book has been nearly ignored for a long time, and only in the last...

The two ‘slogans’ written by Sraffa in an early draft of the preface to his book (Sraffa Papers D3/12/43:1(3)) can be seen as the synthesis of a wider reasoning that he outlines in some manuscripts composed in 1955 and 1956. We rationalise this reasoning by three statements: A. The rate of...

Since the late 1960s, the efforts of general equilibrium theorists have been directed towards overcoming the evident limitation of the Arrow-Debreu model, i.e. the assumption that the transactions associated with the future activities of agents are all regulated at the initial date on a complete...