metadata: authors: 0: author: Kee,Hiau Looi
1: author: Nicita,Alessandro
count: United Kingdom
docna: 0: docna: Short-term impact of Brexit on the United
            Kingdom's export of goods
docty: Policy Research Working Paper
subtopic: International Trade and Trade Rules,Rules of Origin,Trade and Multilateral Issues,Trade Policy,Transport and Trade Logistics
teratopic: International Economics and Trade,Transport
abstracts: cdata!: The short-term impact of Brexit on goods
            exports is assessed using the Overall Trade Restrictiveness
            Index of the United Kingdom's major trading partners.
            The analysis shows that in the short run, leaving the
            European Union may cause the United Kingdom's exports
            to the European Union to decrease by 2 percent, and the
            prospect of a major trade collapse post-Brexit is unlikely.
            This is because the European Union's Most Favored
            Nation (MFN) tariffs are higher on products that are less
            responsive to tariffs, and lower on products that are more
            responsive to tariffs.
geo_reg_key: 517190,517191
repnme: repnme: Short-term impact of Brexit on the United
            Kingdom's export of goods
display_title: Short-term impact of Brexit on the
            United Kingdom's export of goods
listing_relative_url: /research/2017/09/27977405/short-term-impact-brexit-united-kingdoms-export-goods
topicv3: Impact of Trade m1326020 1192,Global Value Chains(GVC) m1326472 767,Trade m1326924 698,Trade Policy and Integration m1327407 775,Trade Policy m1327640 776
publishtoextweb_dt: 2017-09-13T00:00:00Z
historic_topic: International Economics and Trade,Transport
no_of_pages: 13
author_keys: 0: author_key: 559677
1: author_key: 437023
model_extractions: WPS8195 Policy Research Working Paper 8195 Short-Term Impact of Brexit on the United Kingdom’s Export of Goods _Hiau Looi Kee Alessandro Nicita_ Development Research Group Trade and International Integration Team September 2017
Policy Research Working Paper 8195

# **Abstract**

The short-term impact of Brexit on goods exports is assessed using the Overall Trade Restrictiveness Index of the United Kingdom’s major trading partners. The analysis shows that in the short run, leaving the European Union may cause the United Kingdom’s exports to the European Union to decrease by 2 percent, and the prospect of a major trade collapse post-Brexit is unlikely. This is because the European Union’s Most Favored Nation (MFN) tariffs are higher on products that are less responsive to tariffs, and lower on products that are more responsive to tariffs.

This paper is a product of the Trade and International Integration Team, Development Research Group. It is part of a larger effort by the World Bank to provide open access to its research and make a contribution to development policy discussions around the world. Policy Research Working Papers are also posted on the Web at http://econ.worldbank.org. The authors may be contacted at hlkee@worldbank.org.

_The Policy Research Working Paper Series disseminates the findings of work in progress to encourage the exchange of ideas about development issues. An objective of the series is to get the findings out quickly, even if the presentations are less than fully polished. The papers carry the names of the authors and should be cited accordingly. The findings, interpretations, and conclusions expressed in this paper are entirely those of the authors. They do not necessarily represent the views of the International Bank for Reconstruction and Development/World Bank and its affiliated organizations, or those of the Executive Directors of the World Bank or the governments they represent._ Produced by the Research Support Team
# Short-Term Impact of Brexit on the United Kingdom’s Export of Goods<sup>�</sup>

Hiau Looi Kee<sup>y</sup> Alessandro Nicita<sup>z</sup> World Bank UNCTAD Key Words: Overall Trade Restrictiveness Index, Brexit JEL Classi...cation Numbers: F10, F14

> �The preliminary ...nding of this paper was ...rst presented at the World Bank’s Policy Research Talk on Sep 27, 2016, titled “Trade, FDI and Global Value Chains.” We thank Chad Bown, Aaditya Mattoo and participants in World Bank’s Policy Research Talk for feedback and comments. The results and opinions present in this paper are our own, and do not necessarily represent the views of the World Bank and UNCTAD, their Executive Directors, or the countries they represent.

> yDevelopment Research Group, The World Bank, Washington, DC 20433, USA; Tel.: (202) 473-4155; Fax: (202)522-1159; e-mail: hlkee@worldbank.org.

> zUNCTAD. Email: Alessandro.Nicita@unctad.org.
# 1 Introduction

On June 23, 2016, UK voters stunned the world by deciding to leave the EU. The news sent the British pound to a 30 year low, stock markets plummeted as much as 8 percent around the world, and David Cameron resigned as the Prime Minister. The vote result went against the advice of many experts. In fact, most economists thought that Brexit was a bad idea (see Baldwin, 2016). Some actually predicted a big short-term drop in trade and income per capita post-Brexit (see Dhingra, Ottaviano, Sampson and Van Reenen, 2016). More than a year has passed, contrary to these experts’advise, the exports of UK to the EU have in fact increased by 2 percent since July 2016.<sup>1</sup> While the full impact of Brexit is yet to show, particularly because the UK has not yet o¢ cially left the EU and thus currently still enjoys the tari¤ free access to the EU market, there are reasons to be optimistic even after the divorce is ...nalized.

This paper analyzes the short-term fallout of trade in goods from Brexit, through potential changes in the trade policies of its main trading partners. We construct the Overall Trade Restrictiveness Index (OTRI) of the UK’s major trading partners.<sup>2</sup> Our analysis shows that in the absence of any trade agreement between the UK and the EU post-Brexit, facing the EU’s Most Favored Nation (MFN) tari¤s could cause the UK’s export of goods to the EU to drop by 2 percent. The impact is not larger because the higher tari¤s are placed on the less elastic products that the UK exports, while the lower tari¤s are placed on the more elastic products that the UK exports. The negative relationship between the MFN tari¤s and demand elasticity softens the potential collapse in the UK’s exports of goods to the EU, in the event the UK and the EU fail to strike any trade agreement post-Brexit. We assume

> 1Data source: Eurostat.

> 2The OTRI was developed in Kee, Nicita, Olarreaga (2008 and 2009) based on the theoretical foundation of a series of seminal work by Anderson and Neary (1992, 1994, 1996, 2003 and 2007). More recently, Kee, Neagu and Nicita (2013) has used the OTRI framework to quantify the minimal impact of trade policies in causing the global collapse in trade in the aftermath of the ...nancial crisis in 2008.

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that there are no further compliance costs associated with the existing NTMs facing UK ...rms should the UK leave the EU.

It should be noted that this paper will not talk about services trade, “passporting”and the role of London as a ...nancial center post-Brexit, or immigration and the social aspect of Brexit.<sup>3</sup> It also will not speculate about the optimal timing to invoke Article 50 and “soft Brexit”. Finally the long-run impact of Brexit could depend on whether the UK can continue to retain and attract foreign direct investment, which surely will shape the UK’s exports for years to come, which is beyond the scope of the current paper. Recent ...rm survey evidence from Bloom and Mizen (2017) suggests that while most ...rms expect a negative impact of Brexit on sales, investment and costs, only larger ...rms and those that are more exposed to international markets are likely to think that they might move part of their business abroad. Thus, there are reasons to be optimistic post-Brexit.

The paper proceeds as follows. Section 2 brie‡y describes the theoretical framework underpinning OTRI. Section 3 provides a data description for the paper. Section 4 presents the OTRI of the UK’s major trading partners, while Section 5 concludes the paper.

# 2 Overall Trade Restrictiveness Index

The Overall Trade Restrictiveness Index (OTRI) summarizes the trade policies stance of a country. For a country, c; OTRI takes into account the trade responsiveness of all product n; "n;c , with respect to its trade policy, Tn;c; weighted by its total import, mn;c :

> 3For the impact of Brexit on services trade, please refer to Mulabdic, Osnago and Ruta (2016).

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Trade policy includes both tari¤s and the ad valorem equivalent (AVE) of non-tari¤measures (NTM).<sup>4</sup> The OTRI was ...rst developed in Kee, Nicita and Olarreaga (hereafter, KNO, 2008, 2009), based on Feenstra’s (1995) partial equilibrium simpli...cation of the theoretical framework of Anderson and Neary (1992, 1994, 1996, 2003 and 2007).<sup>5</sup> It measures the uniform ad valorem equivalent tari¤ that could replace the current tari¤ and NTM structure, while keeping the trade volume of a country constant. KNO (2008, 2009) further include the AVE of NTMs in trade policy. Hence, the basic ingredients for the calculation of OTRI are import value, trade elasticities, tari¤ and AVE of NTMs at Harmonized System (HS) 6 digit-level.

HS 6 import demand elasticities were ...rst estimated in KNO (2008), while the AVE of NTMs were estimated in KNO (2009). Based on these estimates, KNO (2009) constructed the OTRI of a wide range of countries and showed that NTMs contribute signi...cantly to the level of trade restrictiveness, and developing countries tend to have higher trade barriers than developed countries. In a more recent paper, Kee, Neagu and Nicita (2013) used the OTRI framework to assess the role played by trade policy in the collapse of world trade between 2008 and 2009. They concluded that, while the rise in tari¤s and antidumping duties may have jointly caused global trade to drop by US$43 billion, it explained less than 2 percent of the collapse in world trade during the crisis period.

For our current application, we will construct the OTRI for the major trading partners of the UK, namely, the EU, US and China. Given the bilateral nature of the exercise, we expand the OTRI framework to allow for bilateral di¤erences in trade policies and trade responsiveness. Speci...cally, the OTRI of a country, c; with respect to the imports from a

> 4NTMs consist of Sanitary and Phytosanitary Measures, such as requirements on labeling, hygiene, maximum pesticide residue limits and testing; as well as Technical Barriers to Trade, such as requirements on labeling, product quality, packaging, and certi...cations, as well as other measures.

> 5Anderson and Neary’s work focuses on general equilibrium feedback of tari¤s, Feenstra’s simpli...cation focuses on partial equilibrium and ignores the substitution or income e¤ects of import demands when the tari¤ changes.

3
partner country, p; is the weighted average of its bilateral trade policy, Tn;c;p on all imported products, n; with their weights re‡ect the size of their imports, mn;c;p; as well as their respective bilateral import demand elasticity, "n;c;p : For the relevant bilateral import demand elasticity, "n;c;p; we will utilize the most recent estimates facing UK exports in these markets from Kee and Nicita (2017). These bilateral import demand elasticities are estimated from product level quantity-based gravity regressions, jointly with bilateral AVE of NTMs. The econometric model also takes into account the large presence of zero in the bilateral trade statistics, and at the same time uses instrumental variables to address the endogeneity issues of tari¤s and NTMs. Based on these estimates, we assess short-term trade impacts based on the potential changes in tari¤s and NTMs in these markets post-Brexit according to the ...rst di¤erence of Eq (2): where bilateral imports will be kept at the current, pre-Brexit level to isolate the trade policy impacts on trade ‡ows. The total impact of trade due to potential trade policy changes will be with mc;p and �"c;p measure the aggregate imports and import weighted trade elasticity of country c with respect to imports from partner p: We will use data on 2016 to calculate trade impact according to Eq (3) : 4
# 3 Data

Data used in this study come from UN-Comtrade for HS 6 digit-level import and export data, and UNCTAD TRAINS for tari¤ and NTM data. Most of the NTM data were collected around 2015/2016, so that determines the year coverage of the sample used in the analysis. Figure 1 presents the time series plot of the UK’s exports by destination country from 2000 to 2015. The EU is by far the top destination market for the UK exports, even though its importance has steadily declined over time, from about 60 percent in 2000 to 44 percent in 2015. The US has absorbed about 15 percent of the UK’s exports throughout this period, while China is gaining from 2 percent to close to 10 percent. Figure 2 presents the export pro...le of the UK by sector. Machinery, Chemical Products and Transportation jointly accounted for more than half of the UK’s export in 2015. Table 1 presents the some summary statistics that capture the trade policies of the UK’s main partners. With the exception of the EU, both the US and China do not currently give tari¤ preferences to the UK’s exports. Products from the UK enter the US and China facing the Most Favored Nations (MFN) tari¤ with no preferences. The EU on the other hand gives full preference to the UK’s exports under the EU Single Market arrangement, so products from the UK enter the EU with no tari¤s.

# 4 Overall Trade Restrictiveness Index of UK’s Main Partners

Table 2 presents the OTRI of the UK’s main trading partners, based on trade elasticity and AVE estimates from Bown, Kee and Nicita (2016). For details about the estimations of trade elasticity and AVEs, please refer to that paper. For the EU, the import-weighted average 5
MFN tari¤ is 3 percent, while the import weighted AVE of NTMs is 3.4 percent. However, given that the UK currently is part of the EU Single Market, the OTRI in the EU facing UK exports is 0. Both the US and China impose MFN tari¤s on UK exports. For the US, the import-weighted average MFN tari¤ is 1.2 percent, while for China, it is 5 percent. When factoring in import demand elasticity and AVE of NTMs, the OTRI of US and China facing UK exports is 0.5 percent and 2.4 percent respectively.

Table 3 presents the potential trade impact of Brexit in the short run, according to Eq (3). Here we assume that no new trade agreements will be signed between the UK and its partners, so the UK’s exports will face MFN treatment in all markets. For the US and China, nothing will change in terms of tari¤s and NTMs, so the potential trade impact is zero. For the EU, moving from no tari¤ to MFN tari¤ will lead to the OTRI to increase to 0.93 percent, which may cause trade to decrease by almost 2 percent, which is equivalent to a loss of USD$3.14 billion. The short-term disruption in trade due to trade policy is likely to be small: the OTRI of the main partners are low, even after factoring in possible compliance costs of NTMs facing the UK exporters in these markets.<sup>6</sup> The bottom line is that, without any new trade deals, UK exports to the EU may drop by less than 2 percent, while UK exports to the US and China may not be a¤ected by Brexit in the short term, before any relocation adjustment of FDI.

It may be surprising that the short-run trade impact of Brexit is not larger. This is because OTRI can be decomposed into the sum of the import-weighted tari¤ (and AVEs) and the covariance between tari¤(and AVEs) and import demand elasticity.<sup>7</sup> For the EU, the covariance between tari¤ and trade elasticity is negative, meaning higher tari¤s are placed

> 6It should be noted that NTMs consist of many di¤erent areas, including standards conformity and assessment, certi...cation requirements and more. Currently UK ...rms exporting to the EU satisfy all their NTMs requirements. We assume that there are no further compliance costs associated with the existing NTMs should the UK leave the EU.

> 7Please see Kee (2007), which shows that OTRI equals import weighted average tari¤ and the import weighted covariance between tari¤ and trade elasticity.

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on less elastic products (such as Transport Equipment, Plastics, Foods and Apparels), while lower tari¤s are on the more elastic products (such as Pulp and Paper, Scienti...c Instruments, Precious Stones). This negative relationship between tari¤ and trade elasticity causes the EU’s OTRI to be lower than its import-weighted average tari¤, which leads to a smaller trade impact in the short run.

# 5 Concluding Remarks

This note constructed the overall trade restrictiveness facing the UK’s goods exports in its major markets. Based on new estimates on trade elasticity and the ad valorem equivalent of NTMs, we show that the overall short-run trade impact on the UK’s goods trade due to Brexit is less than 2 percent. This result assumes that the UK will not have any preferential access to the EU market and all its products will enter the EU, the US and China on the Most Favored Nations (MFN) basis. This result also assumes that in the short-run, ...rms and investments are not free to move across borders. The long-run consequences of Brexit most likely depend on whether the UK can continue to attract and retain its foreign direct investment.

# References

- [1] Anderson, J. and Neary, P. (1992). ‘Trade reforms with quotas, partial rent retention and tari¤s’, Econometrica, vol. 60(1), pp. 57-76.

- [2] Anderson, J. and Neary, P. (1994). ‘Measuring the restrictiveness of trade policy’, World Bank Economic Review, vol. 8(2) (May), pp. 151-169.

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- [3] Anderson, J. and Neary, P. (1996). ‘A new approach to evaluating trade policy’, Review of Economic Studies, vol. 63(1) (January), pp. 107-125.

- [4] Anderson, J. and Neary, P. (2003). ‘The Mercantilist index of trade policy’, International Economic Review, vol. 44(2) (May), pp. 627-649.

- [5] Anderson, J. and Neary, P. (2007). ‘Welfare versus market access: the implications of tari¤ structure for tari¤ reform’, Journal of International Economics, vol. 71 (2) (March), pp. 627-649.

- [6] Baldwin, R. (2016). ‘Brexit Beckons: Thinking ahead by leading economists,’ http://voxeu.org/content/brexit-beckons-thinking-ahead-leading-economists.

- [7] Bloom, N., and Mizen, P. (2017). “New survey evidence on the impact of Brexit on UK ...rms,”Voxeu: http://voxeu.org/article/new-survey-evidence-impact-brexit-uk-...rms.

- [8] Dhingra, S., Ottaviano, G., Sampson, T., and Van Reenen, J., (2016) ‘The consequences of Brexit for UK trade and living standards,’CEP working paper.

- [9] Feenstra, R. (1995). ‘Estimating the e¤ects of trade policy’, in (G. Grossman and K. Rogo¤, eds.), Handbook of International Economics, vol. 3, Amsterdam: Elsevier.

- [10] Kee, H.L. (2007). Book review of James Anderson and Peter Neary, Measuring the Restrictiveness of International Trade Policy, in Journal of International Economics, vol. 73, no. 2, p. 434-438.

- [11] Kee, H.L., and Nicita, A. (2017). ‘Trade Fraud, Trade Elasticities and Non-Tari¤ Measures,’World Bank Mimeo.

- [12] Kee, H.L., Nicita, A. and Olarreaga, M. (2008). ‘Import demand elasticities and trade distortions’, Review of Economics and Statistics, vol. 90, no. 4, p. 666–682.

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<!-- Start of picture text --> UK EXPORTS TO THE WORLD 2015<br>Animal products Other<br>Arts and antiques__ Paper goods 2° — “~<br>2% 2%<br>i Machines<br>tows 20%<br>Plastics and rubbers<br>3%<br>Foodstuffs<br>a%<br>Instruments<br>4%<br>Metals<br>5%<br>Chemical products<br>16%<br>Mineral products<br>7%<br>Precious metals stones<br>12% Transportation<br>16%<br>Source: WITS database, World Bank, 2016<br><!-- End of picture text -->