After sixty years of predominance in the western countries, both the objective of economic growth and its core measure, the Gross Domestic Product (GDP), have been questioned. It no longer seems consistent to maintain growth as a societal goal and to keep GDP as the major reference for...

This paper addresses the issue of why Keynesian economists have had such a hard time in giving the concept of involuntary unemployment a place in economic theory. Is the gradual demise of this concept a manifestation of some inner defect in economic theory or is it due to some intrinsic weakness...

This paper builds a macroeconomic model of equilibrium unemployment in which firms persistently face difficulties in selling their production and this affects their decisions to create jobs. Due to search-frictins on the product market, equilibrium unemployment is a U-shaped function of the...

The label “Keynes-Negishi equiibria” is attached here to equilibria in a monetary economy with imperfectly competitive product and labor markets where business firms and labor unions hold demand perceptions with kinks - as posited in Negishi’s 1979 book Microeconomic Foundations of...

The aim of this paper is to assess how three seminal coordination failure models (Diamond ((1982)1991), Howitt (1985) and Roberts (1987) have fared against ‘Keynes’s programme’. The first part of the paper characterises Keyne’s programme as consisting of the following four objectives :...

The aim of this paper is to examine critically Lucas’ arguments against Keynes’s General Theory and in particular against Keynes’s concept of involuntary unemployment. It comprises two main parts. In the first, I question Lucas’s claim that Keynes betrayed the equilibrium discipline by...

The aim of this paper is to disentangle four main acceptations of the unvoluntary unemployment concept, to be found in the literature. The will be dubbed respectively as unvoluntary unemployment à la Keynes, à la Modigliani, à la Azariadis and à la Haavelmo (or, alternatively, Keynes-,...

L'article s'intéresse aux conséquences méthodologiques de la controverse Hayek-Keynes, en particulier sur la Théorie Générale. Premièrement, nous montrons que la critique d'Hayek concernant la théorie du capital se révèle être, du point de vue de la méthode, une critique d'absence de...

Using a retrospective methodology, my paper examines critically the insights on involuntary unemployment offered by Keynes in his General Theory. Keynes, it is argued, gave involuntary unemployment a modern micro-founded definition yet –quite opportunely, in view of the difficulty of the...

In the Dixit-Stiglitz model of monopolistic competition the effects of individual pricing decisions on the aggregate price index are neglected. Tliis paper studies the implications of this approximation in terms of the efficiency of macroeconomic equilibria. We show that allowing for the...