Extensive research has demonstrated the existence of large potential welfare gains from trade facilitation—measures to reduce the overall costs of the international movement of goods. From an equity perspective an important question is how those benefits are distributed across and within...

The focus of trade policy has shifted in recent years from economy-wide reductions in tariffs and trade restrictions towards targeted interventions to facilitate trade and promote exports. Most of these latter interventions are based on the new mantra of "aid-for-trade" rather than on hard...

We review a recent body of theoretical work that aims to put numbers on the consequences of globalization. A unifying theme of our survey is methodological. We rely on gravity models and demonstrate how they can be used for counterfactual analysis. We highlight how various economic...

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...

For Africa, a regional customs union is unlikely to realise net welfare gains (in the sense of trade creation dominating trade diversion) which cannot be attained through unilateral trade liberalization. Unilateral reform has often failed in Africa, however. A regional customs union tied to...

This paper examines whether, in the presence of trade preferences, Sub-Saharan African economies, and especially its poorest households, could gain from multilateral trade reform. The World Bank’s LINKAGE model of the global economy is employed to examine the impact first of current trade...

To what extent has Sub-Saharan Africa’s slow economic growth over the past five decades been due to price and trade policies that have discouraged production of agricultural relative to non-agricultural tradables? This paper uses a new set of estimates of policy distortions to relative prices...

We explore the impact of multilateral liberalization, with emphasis on distributional effects across countries. We first develop a realistic ‘baseline’ that takes into account events such as the entry of China into the WTO and the enlargement of the EU, allowing us to focus on those effects...

Most countries are members of preferential trade agreements (PTAs). The effect of these agreements has attracted much interest and raised the question of whether PTAs promote or slow down multilateral trade liberalization, i.e. whether they are a ‘building block’ or a ‘stumbling block’...