In an OG model with competition à la Cournot, we show the existence of a stable 2-cylcle (in prices and employment levels) in the forward dynamics with learning.

We consider the general equilibrium of an economy with Cournot competition in the product market. In this framework, firms endowed with market power are assumed to know the true or objective demand function. However, depending on the economy's structure, the demand function varies with the size...

We study the link between involuntary unemployment and income feedback effects in a model with an imperfect product market. We provide a condition based on the demand such that full employment prevails when income feedback effects are neglected, while involuntary unemployment appears when they...

Second Change School programmes are active in a number of European countries. These schools offer vulnerable young adults an alternative opportunity to enhance their employability skills by alternating education with work experience. People enrolling in these programmes disengaged from schools...

Cecchetti et al. (2006) develop a method for allocating macroeconomic performance changes among the structure of the economy, variability of supply shocks and monetary policy. We propose a dual approach of their method by borrowing well-known tools from production theory, namely the Farrell...

It is commonly acknowledged that a larger number of trade unions is associated with a higher level of employment. We demonstrate that this belief can be wrong, i.e. that the entry of trade unions can increase the number of unemployed workers. This result is stated in a multi-sector economy in...

We investigate how imperfect competition affects the occurence and properties of endogenous business cycles with underemployment in an overlapping generations model. We consider a competitive product market in association with an imperfect labour market. The latter is presented in two variants....

This paper considers an economy with imperfect competition on the product markets. It studies the link between underemployment at all wages and feedback effects due to firms' activities. Since the economy is composed of local markets, we are able to endogenise the size of feedback effects. We...

This paper is about involuntary unemployment in general equilibrium models with imperfect competition. It surveys papers written after the seminal work of d'Aspremont, Dos Santos Ferreira and Gérard-Varet (1984). This unemployment is called involuntary because it exists at any wage. It results...

We examine the OLG model of Reichlin (1986). By using the Helleman's method (1980), we show that the difference equation of the model can be locally studied from the Feigenbaum equation. We can then explain the existence of endogenous fluctuations acording to the productivity level and the...