How do trade costs affect international trade? This paper offers a new approach. We rely on a flexible gravity equation that predicts variable trade cost elasticities, both across and within country pairs. We apply this framework to the effect of currency unions on international trade. While we...

This paper investigates theoretically and empirically the heterogeneous response of exporters to real exchange rate fluctuations due to product quality. Our model shows that the elasticity of demand perceived by exporters decreases with a real depreciation and with quality, leading to more...

This paper derives a micro-founded gravity equation in general equilibrium based on a translog demand system that allows for endogenous markups and rich substitution patterns across goods. In contrast to standard CES-based gravity equations, trade is more sensitive to trade costs if the...

This paper investigates theoretically and empirically the heterogeneous response of exporters to real exchange rate fluctuations due to product quality. Our model shows that the elasticity of demand perceived by exporters decreases with a real depreciation and with quality, leading to more...