The large literature on agglomeration economies attests to the higher average productivity of firms in larger cities. However, this literature focuses on positive externalities, and a second potential ...

Two important long-run trends in economic geography are steady urbanisation and agglomeration to the big cities. This column presents recent research on population trends focusing on fixed regions ...

I investigate the aggregate effects of R&D tax credits in the US. Because it subsidizes R&D activity and because credit rates vary between states, this policy has both spatial and dynamic effects on ...

Copper is present in ores in the form of carbonates, sulfates, silicates, oxides and hydroxides with the most common minerals being malachite, azurite, cuprite, chrysocolla and tenorite. Copper is ...

Kerr, William R. "The Agglomeration of U.S. Ethnic Inventors." In Agglomeration Economics, edited by Edward Glaeser, 237–276. Chicago, IL: University of Chicago ...

Powder properties in four phases (powder pretreatment, dispersion and mixing, molding, and sintering) typically impact the robustness of modern ceramic products. Particle size is the most important ...