We analyze the international operations of multinational firms to measure the spatial barriers to transferring knowledge. We model firms that can transfer bits of knowledge to their foreign affiliates in either embodied (traded intermediates) or disembodied form (direct communication). The model...

Why did Western Europe industrialize first? An influential view holds that its exceptionally well-functioning markets supported with a certain set of institutions provided the incentives to make investments needed to industrialize. This paper examines this hypothesis by comparing the actual...

Income convergence across countries turns on whether technological knowledge spillovers are global or local. I estimate the amount of spillovers from R&D expenditures on a geographic basis, using a new data set which encompasses most of the world's innovative activity between 1970 and 1995. I...