Using a gravity-type model to explain bilateral passenger traffic, this paper estimates the impact of liberalizing air transport services on air passenger flows for a sample of 184 countries. We find robust evidence of a positive and significant relationship between the volumes of traffic and...

An Advanced Guide to Trade Policy Analysis is a follow up to A Practical Guide to Trade Policy Analysis. The Advanced Guide provides the most recent tools for analysis of trade policy using structural gravity models. Written by experts who have contributed to the development of theoretical and...

In this paper we study the impact of digitalization on trade costs in 58 economies over the period 2014 - 2018. Improvements in digital connectivity can reduce trade costs through multiple channels, including better access to information, lower transaction costs, the reduced need for business...

This paper explores the role that quality of infrastructure has on a country's trade performance, estimating a gravity model that incorporates bilateral tariffs and a number of indicators for the quality of infrastructure. The paper looks at the impact of the quality of infrastructure (road,...

In recent years, quantitative analysis of the effects of policies on economic outcomes has grown sharply. These exercises in quantification have been made possible by advances in theory and analytical techniques, and no less importantly, by the dramatically increased computational and data...

We find robust evidence of a positive and significant relationship between the volumes of traffic and the degree of liberalization of the aviation market. An increase in the degree of liberalization from the 25th percentile to the 75th percentile increases traffic volumes between countries...

Then, we integrate the latest developments in the empirical gravity literature and we offer six recommendations to obtain reliable partial equilibrium estimates of the effects of bilateral and non-discriminatory trade policies within the same comprehensive, and theoretically-consistent...

The objective of this manuscript is to serve as a practical guide for estimations with the structural gravity model. After a brief review of the theoretical foundations, we summarize the main challenges with gravity estimations and we review the solutions to address those challenges. Then, we...

"This Advanced Guide has been developed to contribute to the engancement of developing countries' capacity to analyse and implement trade policy. It is aimed at government experts engaged in trade negotiations, as well as graduate students and researchers involved in trade-related study or...