This paper introduces a market size dependent firm entry cost into the Helpman, Melitz and Yeaple (2004) (HMY) version of the Melitz (2003) model. This is a relatively small generalisation, which preserves the analytical solvability of the model. Nevertheless, our model yields several new...

This paper analyzes the impact of firm networks on Japan's national border effect. We estimate gravity equations using data on Japan's international and interregional trade in four machinery industries (electrical, general, precision and transportation machinery). The machinery sector is the...