Critical inputs from China: how vulnerable are European firms to supply shortages?

9 October 2024

By Dennis Essers, Laura Lebastard, Michele Mancini, Ludovic Panon and Jacopo Timini

China is the top provider of Foreign Critical Inputs (FCIs) to the EU’s industries. So what would happen if those critical supplies suddenly dry up? This ECB Blog post combines a model with firm-level customs data to estimate the magnitude of the potential shock for the economies of five euro area countries.

FCIs are items which European firms typically cannot provide themselves or whose production they have outsourced. Such imports are considered as critical for the EU if the inputs are difficult to substitute, high-tech products, and/or items that are vital for the green transition. The European Commission has a list of hundreds of such inputs, including strategic products such as microchips, turbine parts, optical equipment or chemical precursors to produce drugs and batteries for electric cars.^[1] FCIs represent 17% of extra-EU imports. According to country-level trade data, in 2022 a third of FCIs imported by the EU from extra-EU countries came from China (Chart 1). For the EU, other relevant geopolitically distant suppliers of FCIs are Russia and Hong Kong.

Aggregate impact of critical input supply disruption

We used firm-level trade and balance sheet data for five EU countries − Belgium, France, Italy, Slovenia and Spain − to shed quantitative light on the exposure to foreign supply risks.^[2] We used a firm-level partial equilibrium model, based on a production function approach, to assess the short-term effect of disruptions to the supply of FCIs from China and other countries with a similar geopolitical orientation (i.e. China-aligned countries) on manufacturing value added. In the model, firms combine labour, capital, and intermediates, which are in turn produced using FCI and non-FCIs. Our baseline scenario consists of a sudden drop that halves the supply of FCIs from China-aligned countries. In line with business survey evidence, we assume that firms cannot substitute these inputs in the short run. Such FCI supply disruptions would generate a drop in manufacturing value added of 2.0% for Belgium, 2.5% for France, 2.9% for Spain and 3.1% for Italy and Slovenia in the short term (Chart 2). Large firms are driving the overall change, accounting for about 75% of the decline in value added in all countries. The results for the top 1% of firms display more heterogeneity, explaining about 15% of the decline in Italy and Spain, around 30% in France and Belgium, and more than 50% in Slovenia.

What are the differences by sector and region?

The simulated impact is extremely heterogeneous across sectors. The electrical equipment industry stands out as the most affected sector, with a median value-added decline across countries of around 7%, more than double the overall median value-added decline of less than 3%. Other industries experiencing more than the median declines include chemicals, basic metals, electronics, and machinery (Chart 3). Together, these five industries account for nearly one-third of manufacturing value added in our countries. Some sectors, such as electronics, show a similar decline across countries, while in others such as chemicals and machinery the results vary much more from one country to another, reflecting different sub-sector compositions and firm-specific sourcing patterns.

Regional results are also very heterogeneous (Chart 4). The great heterogeneity across regions within countries is driven by specialisation and concentration. The most affected regions are those specialised in sectors heavily reliant on FCIs imported from non-EU countries. For instance, the Italian Marche region is relatively more specialised than other regions in the production of electrical equipment, which is an industry that heavily relies on sourcing foreign critical inputs from China-aligned countries. The concentration of top producers in some regions also contributes to this heterogeneity: the presence of large, exposed firms implies that their effect on the value added of their region is more substantial, which is consistent with the aggregate effects shown in Chart 2.

Conclusion

Identifying firms exposed to disruptions of critical inputs is key for policy makers to better prepare for forthcoming shocks with potential implications for growth and price stability. We argue that microdata are crucial not only for mapping strategic dependencies, but also for quantifying their importance in the event of a shock materialising. A deeper, more granular understanding of exposure to foreign dependencies would enhance our ability to pinpoint where and to what extent price pressures may arise, while also improving the assessment of economic and financial stability risks. At the same time, this insight will be essential in designing more effective industrial policies and reinforcing supply chain resilience. In this context, we support the call of Pichler et al. (2023) for “an alliance to map global supply networks”, emphasising the importance of collecting microdata and making them available for research purposes.^[3] Our work is part of the European System of Central Banks’ (ESCB) effort to enhance its understanding of the ongoing geoeconomic trade fragmentation process. The forthcoming ESCB Report on Geoeconomic Trade Fragmentation, co-authored by about 40 researchers from nine national central banks and the ECB, will provide further analyses highlighting the need to look beyond aggregate trade data and improve the monitoring of detailed supply chains, including through increased cooperation among central banks and other international organisations.^[4]

The views expressed in each blog entry are those of the authors and do not necessarily represent the views of the National Bank of Belgium, Bank of Italy, the Bank of Slovenia, the Bank of Spain, the European Central Bank and the Eurosystem.

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