The paper investigates the mechanics through which novel technological principles are developed and diffused throughout an economy consisting of a technologically heterogeneous ensemble of firms. In the model entrepreneurs invest in the discovery and in the diffusion of a technological principle...

Europe trails the global frontier of productivity growth and the region's trend is sluggish. Much prospective economic growth for Europe is likely to come from AI and its adoption by European firms which is projected to shoot up the productivity trend. For such AI-generated growth to work, high...