The paper reviews recent evidence from a wide range of studies, recognizing that a multiplicity of approaches is needed to learn what works and what does not. The review concludes that there is some support for the emphasis on reducing trade costs through investments in hard infrastructure (like...

The demand for accountability in “Aid-for-Trade” (AFT) is increasing but monitoring has focused on case-studies and impressionistic narratives. The paper reviews recent evidence from a wide range of studies, recognizing that a multiplicity of approaches is needed to learn what works and what...

Avec une croissance soutenue, une vague d'investissements directs étrangers sans précédent, et un net recul de la pauvreté, le bilan des quinze dernières années est largement positif pour l'Afrique sub-saharienne. Ce regain de croissance, qui s'est accompagné de réformes économiques...

This paper surveys the empirical literature on export and import diversification and its linkages with growth. We review widely-used measures of diversification and the evidence about their evolution focusing on how export diversification relates to trade liberalization and economic development....

We posit that OECD buyers are in a continuous search for best quality suppliers from developing countries. We build a simple model of adverse selection and quality screening which captures this feature. The model predicts that diversification happens by “bouts”, or temporary episodes, during...

The paper explores the evolution of export diversification patterns along the economic development path. Using a large database with 156 countries over 19 years at the HS6 level of disaggregation (4,991 product lines) we look for action at the “intensive” and “extensive” margins...

The paper explores the evolution of export diversification patterns along the economic development path. Using a large database with 159 countries over 17 years at the HS6 level of disaggregation (4’998 product lines) we look for action at the “intensive” and “extensive” margins...

Commodity prices are usually very slow to recover from adverse shocks. This is one of the reasons why it has proven so difficult either to smooth their effect or to stabilize them, and why it is sometimes argued that they should behave as if shocks were permanent. There is no reason however why...

This paper explores the evolution of OECD imports over time and as a function of income levels, measuring the concentration of those imports across origin countries at the product level. We find evidence of diversification followed, in the very last years of the sample period (post-2000), by a...

The paper explores the evolution of export diversification patterns along the economic development path. Using a large database with 156 countries over 19 years at the HS6 level of disaggregation (4’991 product lines) we look for action at the “intensive” and “extensive” margins...