A large class of models with CES utility and iceberg trade costs are now known to generate isomorphic “gravity equations.” Economic interpretations of these gravity equations vary in terms of two basic elements: the exporter's “mass” variable and the elasticity of trade with respect to...

An Advanced Guide to Trade Policy Analysis is a follow up to A Practical Guide to Trade Policy Analysis. The Advanced Guide provides the most recent tools for analysis of trade policy using structural gravity models. Written by experts who have contributed to the development of theoretical and...