Emerging economies may grow fast because there is a potential for catching-up. In this paper foreign knowledge spillovers raise productivity of R&D in the exposed sector. The higher the productivity gap the more profitable investment in R&D will be. As a result labor productivity in the...

Global knowledge spillovers allow backward countries to catch up by accumulating knowledge faster than leading countries. International growth differentials will fall as diminishing returns with respect to the national knowledge stock apply. The domestic growth rat e will finally equal the...

Production often causes pollution as a by-product. Once pollution problems become too severe, regulation is introduced by political authorities which forces the economy to make a transition to cleaner production processes. We model this transition as a change in "general purpose technology"...

We study the effectiveness of climate change policy in a model with multiple non-renewable resources that differ in their carbon content. We find that, when allowing some time between announcement and implementation of a cap on carbon dioxide emissions, emissions from non-renewable energy...

We analyze the efficiency of urbanization patterns in a dynamic model of endogenous urban growth with two sectors of production. Production exhibits increasing returns to scale on aggregate. Urban environmental pollution, as a force that discourages agglomeration, is caused by domestic...

We analyze the efficiency of urbanization patterns in a dynamic model of endogenous urban growth with two sectors of production. Production exhibits increasing returns to scale on aggregate. Urban environmental pollution, as a force that discourages agglomeration, is caused by domestic...