Public infrastructure for production and international trade in a small open economy: a dynamic analysis

This paper develops a dynamic trade model with a stock of public infrastructure, which has a property of "unpaid factor of production". We show that a country with a smaller (larger) labor endowment tends to become an exporter of a good whose productivity is more (less) sensitive to the stock of public infrastructure. We also show that after the opening of trade, the labor-scarce country becomes unambiguously better off but the labor-abundant country may become worse off. Overall, these results contrasts with those obtained in the case of public intermediate goods with a "creation of atmosphere" property.