The measurement of trade costs and their effects on outcome is at the heart of a large quantitative literature in international economics. The majority of the recent significant contributions on the matter assumes that trade consists of a product of exporter-time-specific factors,...

Many empirical gravity models are now based on generalized linear models (GLM), of which the Poisson pseudo-maximum likelihood estimator is a prominent example and the most-frequently used estimator. Previous literature on the performance of these estimators has primarily focussed on the role of...