This paper studies to which extent a firm using a scarce resource input and facing environmental regulation, can still manage to have a sustainable growth of output and profits. The firm has a vintage capital technology with two complementary factors, capital and a resource input subject to...

This paper presents an intertemporal model in which the agents may face different quantity constraints resulting from technological rigidities, microeconomic uncertainty and market segmentation. Its main purpose is to derive the path of the unemployment rate, the rate of capacity utilisation and...

Ce travail vise, tout d’abord, à montrer qu’il existe une relation cointégrante à long terme entre l’investissement, la dépréciation et les attentes de profit mesurées par le ratio Q de Tobin. Ensuite, que cette relation découle directement d’un modèle d’optimisation...

We introduce an efficiency-wage mechanism into an innovation-driven growth model. Due to informational problems, the labour market is segmented and homogeneous workers may be employed either in a non-competitive intermediate sector or in a competitive research one. We analyse the impact that...

Dans ce travail, l’un des buts est de montrer qu’il peut y avoir sous-utilisation du capital dans le modèle concurrentiel, même avec une totale flexibilité des prix et une technologie permettant la parfaite substituabilité entre les facteurs. Le modèle formulé ci-dessous nous donne, en...

This paper investigates erapirically the influence of uncertainty on corporate investment. Uncertainty of demand, output prices and investment prices are measured by the standard deviation of (pre-)filtered Belgian (1984-1992) and Spanish (1983-1993) panel data, and included as explanatory...

Dans le cadre d'un modèle à générations imbriquées, nous supposons que la gestion d'une ressource renouvelable correspond à l'émission de quotas d'exploitation transférables. Chaque agent a la possibilité d'utiliser les quotas dans la production ou de les vendre à la génération...

The aim of this paper is to examine common trends and common cycles in Belgian Sectoral output series. A multivariate technique proposed by Engle and Issler [1995] allows to deal with series which simultaneously contain common trends and common cycles. An application of their methodology for...

In December 2005, the Belgian government adopted the law on the Intergenerational Solidarity Pact (ISP) with the objective to increase the employment rate of the elderly. In order to meet that objective, several active ageing policies and reforms were taken. The aim of this paper is to...