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Rising protectionism and global value chains: quantifying the general equilibrium effects

Cappariello, Rita, Franco-Bedoya, Sebastian, Gunnella, Vanessa and Ottaviano, Gianmarco I. P. (2020) Rising protectionism and global value chains: quantifying the general equilibrium effects. CEP Discussion Papers (1682). Centre for Economic Performance, LSE, London, UK.

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Abstract

Quantifying the effects of trade policy in the age of ’global value chains’ (GVCs) requires an enhanced analytical framework that takes the observed international input-output relations in due account. However, existing quantitative general equilibrium models generally assume that industrylevel bilateral final and intermediate trade shares are identical, and that the allocation of imported inputs across sectors is the same as the allocation of domestic inputs. This amounts to applying two proportionality assumptions, one at the border to split final goods and inputs, and another behind the border to allocate inputs across industries. In practice, neither assumption holds in available inputoutput data sets. To overcome this limitation of existing models, we consider a richer input-output structure across countries and sectors that we can match with the actual structure reported in inputoutput tables. This allows us to investigate the relation between the effects of changes in trade policies and GVCs. When we apply the enhanced quantitative general equilibrium model to the assessment of the effects of Brexit, we find trade and welfare losses that are substantially larger than those obtained by previous models. This is due to the close integration of UK-EU production networks and implies that denser GVCs amplify the adverse effects of protectionist trade policies.

Item Type: Monograph (Discussion Paper)
Official URL: https://cep.lse.ac.uk/_new/publications/discussion...
Additional Information: © 2020 The Authors
Divisions: LSE
Subjects: H Social Sciences > HF Commerce
J Political Science > JZ International relations
J Political Science > JN Political institutions (Europe) > JN101 Great Britain
JEL classification: F - International Economics > F1 - Trade > F13 - Commercial Policy; Protection; Promotion; Trade Negotiations; International Trade Organizations
F - International Economics > F1 - Trade > F15 - Economic Integration
F - International Economics > F4 - Macroeconomic Aspects of International Trade and Finance > F40 - General
Date Deposited: 14 Jan 2021 15:15
Last Modified: 24 Jan 2021 00:17
URI: http://eprints.lse.ac.uk/id/eprint/108423

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