Patricia Ellen, Jaana Remes, 12 July 2014

Brazil has grown rapidly and reduced poverty over the past decade, but it has grown more slowly than other emerging economies and its income per capita remains relatively low by global standards. This column points out that sectors of the Brazilian economy that have been opened up to international competition have outperformed those that remain heavily protected. Deeper integration into global markets and value chains could provide competitive pressures that would improve Brazil’s productivity and living standards.

Jayant Menon, 09 June 2014

With the rise of mega-regional trade agreements, the world trade system resembles a jigsaw puzzle. This column discusses the difficulties involved in consolidating free trade agreements at the regional level, and argues that piecing together the blocs around the world will be even more challenging. A potential way forward is to return to the most widely used modality of trade liberalisation – unilateral actions – but this time involving the multilateralisation of preferences rather than unreciprocated reductions in tariff rates.

Christopher Parsons, Pierre-Louis Vézina, 23 May 2014

Immigrants potentially foster international trade by reducing trade costs. This column uses the exodus of the Vietnamese boat people to the US as a natural experiment to provide evidence of such a pro-trade effect. An exogenous allocation of Vietnamese migrants across the US in 1975 was followed by a 20-year trade embargo. Following the lifting of sanctions in 1994, the share of US exports going to Vietnam was higher and more diversified in the states with larger Vietnamese populations.

Zhi Wang, Shang-Jin Wei, Kunfu Zhu, 16 April 2014

One common measure of trade linked international production networks is the so-called VAX ratio, i.e. the ratio of value-added exports to gross exports. This column argues that this measure is not well-behaved at the sector, bilateral, or bilateral sector level, and does not capture important features of international production sharing. A new gross trade accounting framework is proposed that can better track countries’ movements up and down global value chains.

Zhi Wang, Shang-Jin Wei, Kunfu Zhu, 07 April 2014

The growth of international trade in intermediate inputs means that standard trade statistics can give a misleading picture of the real patterns of production behind world trade. This column introduces an accounting framework that decomposes traditional trade flows into components that better reflect the underlying location of the value addition linked to exports.

Pascal Lamy, Ian Goldin, 28 March 2014

Excessive short-termism is always a problem for policy, but the Global Crisis has brought it sharply into focus. This column introduces a report that discusses how a shift to longer-term solutions is necessary and possible. A key message is that businesses as well as governments need to take a longer-term view. The report identifies ways to overcome the current impasse in key economic, climate, trade, security, and other negotiations.

Derek Kellenberg, Arik Levinson, 01 March 2014

Economic theory predicts that international environmental agreements will fail due to free-rider problems, and previous empirical work suggests that such agreements do not in fact reduce emissions. This column presents evidence that the Basel Convention and Ban on trade in hazardous waste has also been ineffective. The authors find no evidence that Annex-7 countries that ratified the Ban slowed their exports to non-Annex-7 countries as the agreement requires.

Ayako Saiki, Sunghyun Henry Kim, 02 February 2014

Before the introduction of the euro, it was hoped that by promoting increased intra-regional trade it would increase business-cycle synchronisation within the Eurozone, and thus help it to fulfil the criteria for an optimum currency area. This column presents recent research that compares the evolution of business-cycle synchronisation in the Eurozone and east Asia. While the euro has had some impact on business-cycle synchronisation in the Eurozone, it has done so not through increased intra-regional trade intensity, but rather through some other channel – most likely financial integration.

Gary Horlick, 31 January 2014

World-leading trade lawyer, Gary Horlick, talks to Viv Davies about the 2013 WTO Bali ministerial conference and the post-Bali agenda. Horlick discusses food security, agriculture and whether mega regional trade agreements pose a threat to the future of the WTO. They also discuss the potential benefits of the post-Bali agenda for developing countries and the ‘trade transforming’ effect of SMEs and the internet. The interview was recorded in January 2014.

Alejandro Jara , 25 January 2014

Alejandro Jara talks to Viv Davies about the 2013 WTO Bali ministerial conference and the recent Vox report, ‘Building on Bali’, co-edited with Simon Evenett. Jara presents his views on the post-Bali agenda, mega regional trade agreements and trade protectionism. They also discuss the extent to which the ‘global value chain revolution’ has changed the nature and focus of international trade and trade agreements. Jara concludes by presenting policy recommendations for the way forward. The interview was recorded in January 2014.

Richard Baldwin, 20 January 2014

The global value chain revolution has changed trade and trade agreements. Trade now matters for making goods as well as selling them. Trade governance has shifted away from the WTO towards megaregional agreements. This column argues that 21st-century regionalism is not fundamentally about discrimination, and that its benefits and costs are best thought of as network externalities and harmonisation costs respectively. More research is needed to determine how the megaregional trade agreements across the Pacific and Atlantic will fit with the WTO.

Pascal Lamy, 18 December 2013

The emergence of intra-firm trade as the primary component of international trade reflects a global interdependence in the production process. In this column the former Director-General of the WTO argues that this necessitates a re-examination of how we think about – and how we measure – trade between nations. Interdependence allows different sectors to add value, and complicates the implementation of trade barriers. Only with a modern perspective can effective trade policy be conducted.

Richard Baldwin, 12 December 2013

The WTO signed a mini-package of trade initiatives in Bali last week. This column argues that the ‘Bali package’ is welcome but not enough. Without some new initiative or direction, the WTO looks set to drift for the next few years. The WTO cannot move ahead until the trans-Pacific and trans-Atlantic ‘mega-regionals’ are done or dead. In the meantime, the WTO should promote research and discussion on how 21st-century trade issues could be brought into the WTO when the time is ripe.

Julien Martin, Florian Mayneris, 04 December 2013

While quality upgrading is always viewed positively in both policy and academic circles, little is known about the macro implications for countries of specialising in high-end varieties. This column presents evidence that high-end variety exporters are less sensitive to trade costs. This implies a greater geographic diversification of exports, which compensates for their higher sensitivity to demand shocks and smoothes aggregate volatility. It also increases export growth when business opportunities arise in distant markets.

Kyle Handley, Nuno Limão, 23 November 2013

The impact of policy uncertainty on economic activity is potentially important, but controversial because it is hard to identify and quantify. Recent research provides a framework to identify the impacts of policy uncertainty on firm decisions, and finds it has strong effects in the context of international trade. China’s WTO accession secured its most-favoured nation status in the US, and the evidence shows this reduction in uncertainty can explain a significant fraction of its export boom to the US.

Andrew B. Bernard, Andreas Moxnes, Karen-Helene Ulltveit-Moe, 15 November 2013

Discussions of international trade often focus on aggregate trade flows, but it is firms that trade, not countries. This column presents evidence from Norwegian export data showing that larger exporters have more customers and greater dispersion in customer size. Moreover, exporters with many customers tend to sell to importers with few suppliers. These stylised facts are captured by a model in which finding a buyer is costly. The model’s prediction that export responses are amplified in destinations with less buyer dispersion is confirmed in the data.

Matthias Helble, Ganeshan Wignaraja , 13 November 2013

Intensifying negotiations leading to the December WTO Ministerial Conference in Bali have renewed optimism for concluding the beleaguered Doha Round and boosting Asia’s trade. Agreement in Bali on tariff-quota administration, trade facilitation, and food security would improve the prospects for a Doha deal and WTO credibility. Failure at Bali, however, would spur the rise of mega-regional trade agreements – to the detriment of countries outside these agreements.

Nicholas Crafts, Nikolaus Wolf, 22 October 2013

Europeans worry about competition from low-wage economies. This column looks at the basis of the success of the 19th-century Lancashire cotton industry faced with a similar situation. The message is that the productivity benefits of a successful agglomeration can underpin both high wages and competitive advantage in world trade. Policymakers can support such agglomerations by easing land-use restrictions, promoting investments in transport, and providing local public goods.

Thorsten Beck, 06 June 2013

The World Bank’s ‘Doing Business’ data collection project is under threat from large nations who score poorly, especially China. This column argues that although there are problems with country rankings, the underlying data is very valuable for empirical researchers. The Doing Business project should continue quantifying different dimensions of the business environment, but reduce its focus on country rankings.

Simon J Evenett, Robert M. Stern, 21 March 2013

The US and the EU have announced their intentions to launch trade talks – the Transatlantic Trade and Investment Partnership. This column argues that this should not be thought of as a standard tariff-lowering deal with a few extras thrown in for good measure. Rather, we don’t really know what it will do because trade economists have failed to develop the necessary tools for understanding its impact. It is time for policy analysts to re-tool.