We use network centrality measures to capture the trade partner diversification (TPD) of countries as revealed by their position in the international trade network. These measures are shown to enter long-run growth regressions positively and significantly, on top of trade openness and other...

The role of direct flights in trade costs is investigated by introducing and using a micro price data set on 49 goods across 433 international cities covering 114 countries. It is shown that having at least one direct flight reduces trade costs by about 1,400 miles in distance equivalent terms,...

The effects of oil shocks on output volatility through international transport costs are investigated in an open-economy DSGE model. Two versions of the model, with and without international transport costs, are structurally estimated for the U.S. economy by a Bayesian approach for moving...

We develop a model of cities each inhabited by two agents, one specializing in manufacturing, the other in retail distribution. The distribution sector represents the physical transformation of all internationally traded goods from the factory gate to the final consumer. Using a panel of...