Rodríguez López, IreneRodon i Casarramona, AntoniUnan, AsliHerbig, LisaKlüver, HeikeKuhn, Theresa2025-07-032025-07-032025Rodríguez I, Rodon T, Unan A, Herbig L, Klüver H, Kuhn T. Benchmarking pandemic response: how the UK's COVID-19 vaccine rollout impacted diffuse and specific support for the EU. Br J Polit Sci. 2025;55:e35. DOI: 10.1017/S00071234240008020007-1234http://hdl.handle.net/10230/70826Does the EU's performance compared to neighboring countries influence public support? Using a benchmarking approach, we argue that people compare their country's performance within the EU to that of a non-EU country, shaping their attitudes. The COVID-19 vaccine rollout in 2020 provides an ideal test case, as governments launched vaccination programs at different speeds. The UK began weeks before EU countries, allowing us to examine its impact on EU support. Using an Unexpected Event during Surveys Design (UESD) with Eurobarometer data, we find that the UK's early rollout significantly reduced specific policy support for the EU but did not consistently affect diffuse support. Our findings offer key insights into attitudes toward European integration and performance evaluations.application/pdfeng© The Author(s), 2025. Published by Cambridge University Press. This is an Open Access article, distributed under the terms of the Creative Commons Attribution licence (https://creativecommons.org/licenses/by/4.0/), which permits unrestricted re-use, distribution and reproduction, provided the original article is properly cited.info:eu-repo/semantics/article2025-07-03http://dx.doi.org/10.1017/S0007123424000802European UnionUKBenchmarking theoryCOVID-19 vaccine rolloutDiffuse and specific supportinfo:eu-repo/semantics/openAccess