Is the UK Supreme Court rogue to un-prorogue Parliament?

George Tridimas, Constantina Penelope Tridimas

Research output: Contribution to journalArticlepeer-review

2 Citations (Scopus)
205 Downloads (Pure)


On 24 September 2019, in a unanimous judgment the UK Supreme Court ([2019] UKSC 41) ruled that the Prime Minister’s action to prorogue (suspend) Parliament for 5 weeks in the run-up to the 31-10-2019 deadline of the UK leaving the European Union, was unlawful and of no effect, as it prevented Parliament from carrying out its constitutional functions without reasonable justification. Although the Court did not pronounce on the merits and demerits of Brexit, its decision delighted “Remainers” but appalled “Leavers”. The Court ruling epitomises the potency of constitutional review by an independent judiciary. The paper applies collective choice theory to analyse the ruling of the Supreme Court. This is accomplished by (a) examining the legal basis of the Court ruling; (b) reviewing arguments for judicial review and (c) exploring the effect of the Court as an additional player in the game of collective choice in a spatial decision model.

Original languageEnglish
Pages (from-to)205–225
Number of pages21
JournalEuropean Journal of Law and Economics
Issue number2
Early online date8 Apr 2020
Publication statusPublished online - 8 Apr 2020

Bibliographical note

Funding Information:
We wish to thank an anonymous Referee for useful comments and suggestions and Alain Marciano and Giovanni Ramello for their guidance and encouragement in the pursuit of our research. We remain responsible for any errors and omissions.

Publisher Copyright:
© 2020, The Author(s).

Copyright 2020 Elsevier B.V., All rights reserved.


  • Constitutional judicial review
  • Judicial independence
  • Prorogation of Parliament
  • Separation of powers
  • UK Supreme Court
  • Veto players


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