this paper, we investigate the sensitivity of standard gravity estimation to spatial aggregation. We build a model in which … on border effects in domestic and international trade. Our theory shows that larger countries are systematically …. Even if no border frictions exist at the micro level, gravity estimation on aggregate data can still produce large border …

-proportions trade theory, Heckscher-Ohlin forces operate at the within-industry level, leading to endogenous variation in skill …

One of the oldest and largest literatures in empirical economics is concerned with the estimation of demand and supply … structure of the data. This chapter is concerned with a host of issues that arise with the estimation of such models, respecting … their panel econometric generic structure. The issues covered range from the estimation of double-indexed versus higher …

phase-ins of agreements, lagged terms-of-trade effects, reverse causality, various estimation techniques, disaggregation …