Does national market size matter for industrial structure? Round One (Krugman) answered in the affirmative: Home market effects matter. Round Two (Davis) refuted this, arguing that an assumption of convenience--transport costs only for the differentiated goods--conveniently obtained the result....

The fact that large manufacturing plants export relatively more than small plants has been at the foundation of much work in the international trade literature. We examine this fact using Census micro data on plant shipments from the Commodity Flow Survey. We show the fact is not entirely an...

Big cities specialize in services rather than manufacturing. Big-city establishments in services are larger than the national average while those in manufacturing are smaller. This paper proposes an explanation of these and other facts. The theory is developed in an economic geography model that...