This paper analyses an open economy Ramsey model with an endogenous labour supply without capital. The technology defines an optimal firm size. Changes to the number of firms is subject to adjustment costs, so that the entry dynamics is determined endogenously. We find that there is a short run...

This paper analyses a small open economy Ramsey model with an endogenous labor supply and no capital. The number of firms is subject to adjustment costs, so that the entry dynamics is determined endogenously. We find that with imperfect competition, there is a first order effect of a demand...

We consider a simple model of innovation where equilibrium cycles may arise and show that, whenever actual capital accumulation falls below its balanced growth path, subsidizing innovators by taxing consumers has stabilizing effects, promotes sustained growth and increases welfare. Further, if...

This paper develops a simple endogenous growth model where pollution exposure and vulnerability are unequally spread across the population, and growth and distribution are endogenous. In this setup, we investigate whether tradeoffs between growth, distributional, and environmental concerns may...

In this paper, we develop a R&D-based growth model with a pollution externality and a health production sector. We study how health-impairing pollution affects long term growth, and the effect of an emissions' reduction policy (tax). We show that a tighter environmental tax has positive effects...

In this paper, we study regulation of externalities involving many small-scale polluters, where the damages from emissions depend on the polluters' locations. Examples include nutrient and pesticide emissions from farms, particulate emissions from vehicles and home heating units, emissions of...