Estimates of the elasticity of substitution between domestic and foreign varieties are small in macroeconomic data, but substantially larger in disaggregated microeconomic studies. This may be an artifact of heterogeneity. We use disaggregated multilateral trade data to structurally identify...

We study how trade linkages affect the conduct of monetary policy in a two-country model with heterogeneous firms, endogenous producer entry, and labor market frictions. We show that the ability of the model to replicate key empirical regularities following trade integration---synchronization of...

In most macroeconomic models, the substitutability between domestic and foreign goods is calibrated using aggregated data. This imposes homogeneous elasticities across goods, and the calibration is only valid under this assumption. If elasticities are heterogeneous, the aggregate...

We study how trade linkages affect the conduct of monetary policy in a two-country model with heterogeneous firms, endogenous producer entry, and labor market frictions. We show that the ability of the model to replicate key empirical regularities following trade integration---synchronization of...