This paper revisits the ubiquitous bi-proportional gravity model and investigates the reasons why different theoretical frameworks may lead to the same empirical formula. The generic gravity equation possesses scale invariance symmetries that constrain possible theoretical explanations based on...

At the Davos forum of January 2014, a group of 14 countries pledged to launch negotiations on liberalizing trade in"green goods"(also known as"environmental"goods), focusing on the elimination of tariffs for an Asia-Pacific Economic Cooperation list of 54 products. The paper shows that the Davos...

This paper shows that the institutional environment and the ability to export on time are sources of comparative advantage as important as factors of production. In particular, the ability to export on time is crucial to explain comparative advantage in intermediate goods. These findings...

This paper examines how aid-for-trade programs can help to magnify the growth benefits that developing countries can reap from trade reform and global integration, with a special emphasis on the Caribbean region. The first part discusses various rationales for trade-related aid, viewed both as a...

The authors estimate the impact of aggregate indicators of"soft"and"hard"infrastructure on the export performance of developing countries. They build four new indicators for 101 countries over the period 2004-07. Estimates show that trade facilitation reforms do improve the export performance of...

This paper reviews data and research on trade costs for Sub-Saharan African countries. It focuses on: border-related costs, transport costs, costs related to behind-the border issues, and the costs of compliance with rules of origin specific to preferential trade agreements. Trade costs are, on...

Vietnam's integration with the international economy has increased significantly over the past decade, aided by substantial liberalization of trade, and appears set to increase further as trade-expanding measures take full effect. This dramatic shift in Vietnam's trading patterns has important...

Do Southern African Development Community countries trade enough with each other and with the rest of the world? Although its share of world trade has fallen, appropriate benchmarking shows that, controlling for gross domestic product and other characteristics, Southern African Development...

While barriers to trade in most goods and some services including capital flows have been reduced considerably over the past two decades, many remain. Such policies harm most the economies imposing them, but the worst of the merchandise barriers (in agriculture and textiles) are particularly...

This paper takes stock of the growing success of preferential trade agreements. It revisits what are the defining characteristics of modern preferential trade agreements, which are typically pursued for a diverse array of motives. In particular, the market access justification traditionally used...