The rise of global supply chains means that many firms that import are also exporters. This column uses confidential firm-trade linked transaction data to identify the firms facing new US import tariffs in the period 2018-2019. It shows that product exports with higher firm-level exposure to new import tariffs had weaker export growth after 2018 than less exposed products. This impact on export growth is equivalent to an ad valorem tariff on US exports of 2-4% for the average product.

Global value chains will undergo a drastic transformation in the decade ahead. The change will be driven by a push for greater supply chain resilience due to COVID-19, which adds to existing pressures from the technology revolution, growing economic nationalism, and the sustainability imperative. Based on UNCTAD’s World Investment Report 2020, this column argues that the global trade and investment landscape will be reshaped by the restructuring of global chains, build-up of new regional chains, and distributed manufacturing. While these will present daunting challenges, they will also offer ample opportunities for firms and states alike and will lead to a GVC-development paradigm shift.

Some governments assert that global value chains create economic vulnerabilities in times of a pandemic. This column, taken from a recent Vox eBook, examines recent experiences and the risk-management literature. It concludes that it is a mistake to equate self-sufficiency with robustness – putting all the eggs in one basket is still not a good idea.  It is also a mistake to focus on production location when the imperative is to radically scale up production of vital medical supplies. Importantly, international supply chains will be needed to produce the billions of doses of COVID-19 vaccine we will soon need to manufacture and distribute. 

International trade has helped many nations get vital medical supplies during this pandemic, yet a number of new, protectionist initiatives have been taken or discussed which could disrupt global value chains. This column presents calculations showing that national manufacturing sectors all across the globe are highly interdependent, that these connections have risen since the 2008/9 crisis, and that China is pivotal in the network of dependencies. Given this, policies that seek to hinder supply-chain trade could prove costly. 

Cities and regions around the world are in lockdown in an attempt to contain the spread of Covid-19. This column examines how the economic effect of the lockdown of a city can propagate to other regions in the country, focusing on the case of Tokyo. The findings suggest that if Tokyo were to be locked down for two weeks, the loss in value added production in the city would be 4.3 trillion yen, while the production loss in the rest of Japan due to propagation through supply chains would be 5 trillion yen. In addition, the effect on other regions becomes progressively larger as the duration of the lockdown grows.

During World War II aircraft production in Japan increased sharply. This column, part of the Vox debate on the economics of WWII, examines the reasons for this ‘production miracle’, focusing on an aircraft manufacturing plant of Mitsubishi Heavy Industries Co., one of the two largest aircraft producers in Japan. The key to the production increase was the expansion of the supplier network. Mitsubishi Heavy Industries organized many suppliers to provide aircraft parts to its plants. However, in the final stage of the war, destruction of the supplier network by strategic bombing and an earthquake caused the collapse of the company’s aircraft production.

Recent studies have found that US tariffs on China have led to a significant welfare loss and significant increases in consumer prices in the US. This column, taken from a recent Vox eBook, studies firms’ equity market responses to the various tariff announcements by the US and Chinese governments in 2018 and 2019. The responses demonstrate that the structure of US–China trade is much more complex than the simplistic view of global trade that prompted the trade war, and that the winners and losers in the war depend on firms’ positioning in, and exposure to, the global value chains shared by the two countries.  

Analyses of the impact of various types of Brexit at the national level hide a lot of regional economic heterogeneity. This column deploys a new interregional dataset to quantify the shares of regional labour income that are exposed to the implications of Brexit for trade, taking into account the indirect effects of supply chain relations. The results show that much more is at stake for UK regions than for the rest of the EU, with the exception of Ireland.

Little is known about how adverse shocks spread through production networks. This column presents quantitative evidence on inter-firm contagion using natural disasters as exogenous instruments. Adverse shocks to upstream suppliers lower sales growth and valuation of a downstream firm.