Empirical evidence suggests that most firms operate in imperfectly competitivemarkets. We develop a search-matching model between wholesalers and retailers. Firms face search costs and form long-term relationships. Price bargain results in both wholesaler and retailer markups, depending on...

This paper analyzes the effects and transmission mechanism related to the alternative injection channels - i.e to households versus a financial intermediary - in a neoclassical growth model with reserve requirements and money multiplier effects. The money injected directly to a financial...

We build a simple cash-in-advance model for the German economy, in which we introduce stochastic nominal wage contracts. This allows to weaken the negative effect of the inflation tax such that monetary shocks exert a positive effect on output dynamics. The nominal wage contract model is able to...

The aim of this article is to assess the ability of Calvo (1983) type nominal wage contract to generate a positive and long-lasting hump-shaped response of output to a monetary stimulus, as suggested in empirical studies. To this end, we develop a simple cash-in-advance model, in which...

Le but de cet article est de montrer que le mécanisme de sélection naturelle des firmes peut entraver la croissance de la productivité agrégée de l’économie, et ce, contrairement aux résultats suggérés par la littérature théorique existante. Cette dernière considère que le...

This paper introduces multi-quality firms within a Schumpeterian framework. Featuring non-homothetic preferences and income disparities in an otherwise standard quality-ladder model, I indeed show that the resulting differences in the willingness to pay for quality among consumers generate both...

We introduce an AK spatial growth model with a general geographical structure. The dynamics of the economy is described by a partial differential equation on a Riemannian manifold. The morphology interacts with the spatial dynamics of the capital and is one determinant of the qualitative...

Our paper presents a new rationale for innovation by incumbents. We show that the possibility to price-discriminate between consumers having different levels of wealth is a sufficient incentive for the industry leader to overcome the Arrow (1962) effect and keep investing in R&D, even in the...

This paper examines the dynamics of the skill supply and its incidence on economic growth in the presence of education policies. When there are indivisibilities in the financing of human capital, small differences in the initial distribution of skills may greatly affect the stationary...