Introduction
Richard Baldwin and Beatrice Weder di MauroSupply-chain shocks
As of early March 2020, the COVID-19 epidemic was very much centred in China, with
over 90% of reported cases located there. The two next hardest hit nations are Japan
and Korea. These nations are central to the global supply chains in many manufactured
goods. The chapter by Baldwin and Tomiura, which focuses on the trade implications,
provides more details, but the basic point is straightforwardly illustrated in Figure 3.
Figure 3 Three interconnected hubs in the world’s supply chain for ICT goods
BELROM KGZSVNHRV
BGR
LTUTURVIEIND
BTNBANTHA
AUS
MALMON LAOSRIRUSCHEFRAITAAUTDNK
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MEXIDNBRNSVKMDVKAZBRAFIJHKG CAMPAKGRCMLTLUXESTGBRCZENPLSWENLDJPNTAPKORPHIIRLDEU CHN USA
CYPSource: Global Value Chain Development Report, 2019, http://www.WTO.org
In the figure, the size of the bubble reflects the size of the country (value of trade), and
the thickness of the connecting lines show the relative importance of bilateral flows
(small flows are zeroed for clarity).^16 The figure looks at international supply-chain
linkages in the information and communication technology (ICT) goods to be concrete.
Three features jump out.
- China really is the workshop of the world, being central to the entire global
 network. So manufacturing disruption there will create secondary supply shocks in
 manufacturing sectors in almost all nations.
- There is a strong regional dimension in supply chains, so the fact that China, Korea,
 and Japan are among the five hardest hit means the supply-chain shock will be
 especially strongly felt in Asia.
16 Reproduced from the WTO’s Global Value Chain Development Report 2019, Figures 1.16 and 1.17.
