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...

Intro -- Contents -- I. INTRODUCTION -- II. LITERATURE REVIEW -- III. EMPIRICAL STRATEGY -- IV. RESULTS -- V. CONCLUSIONS -- Appendix I. Compensation Share -- Appendix II. A First Pass at Data: Bivariate Regression Results -- Appendix III. Correlation Matrix of Explanatory Variables -- Appendix...