Many contemporary theoretic studies of trade over geography reduce to an examination of constant-elasticity reactions to changes in iceberg trade costs. These impacts are readily analyzed in simple constant-returns models based on the Armington (1969) assumption of regionally differentiated...

We present an empirical implementation of a general-equilibrium model of international trade with heterogeneous manufacturing firms. The theory underlying our model is consistent with Melitz (2003). A nonlinear structural estimation procedure identifies a set of core parameters and unobserved...

We present an empirical implementation of a general-equilibrium model of international trade with heterogeneous manufacturing firms. The theory underlying our model is consistent with Melitz (2003). A nonlinear structural estimation procedure identifies a set of core parameters and unobserved...

Theory-consistent gravity equations are the focus of recent efforts to understand large international border effects. This study extends the current literature by examining asymmetric border frictions in the context of non-linear multi-lateral resistance regressors. Asymmetries are important...

Alternative perspectives on the structure of international trade have important implications for the evaluation of climate policy. In this paper we assess climate policy in the context of three important alternative trade formulations. First is a Heckscher-Ohlin model based on trade in...