Staff Profile:Dr Deni Mantzari

Dr Deni Mantzari
Job Title:

Dr Despoina Mantzari is module convenor and lecturer in the following courses on the LLM programme : Competition Law, International and Comparative Competition Law, EU Energy Law and Regulation, Advanced International Commercial Law Issues, Comparative Oil and Gas Policy.

She is also the PGT Exam and Projects Officer for the Commercial Law programmes and Deputy Exams officer for the School.

Areas of Interest:

Competition Law (EU, US, UK); Regulated Industries Law (energy, telecoms, financial markets, pharmaceuticals), especially interdisciplinary and comparative approaches as well as the links with other aspects of economic law; Administrative Law (EU, US, UK), Law, Economics and Politics; Pharmaceuticals Regulation; The Behavioural Approach to Regulation.

Research groups / Centres:
  • Member of CCLFR (UoR)
  • Property, Transactions and the Market (Chair), UoR
  • Associate Member of the ESRC Centre for Competition Policy, UEA
  • Associate Member of the Centre for Law, Economics and Society, UCL
  • Visiting Fellow at the Institute of Advanced Legal Studies, London (2016-2017)
  • Society of Legal Scholars
  • British Institute of International and Comparative Law
  • European Consortium for Political Research, Standing Group on Regulatory Governance
  • Competition Law and Economics Network
  • Fellow, HEA
  • Athens Bar Association (non-practicing)
  • Book Review Editor and editor at 'World Competition' journal
Jump to: 2017 | 2016 | 2013
Number of items: 5.




This list was generated on Mon Dec 11 06:08:38 2017 UTC.


Mantzari, D., (2014), The Process of Regulatory Appeals in the UK: One Size Does Not Fit All. Centre for Competition Policy Research Bulletin Issue 27. Available online at:


Mantzari, D. and Korah, V., (2012). It Takes One to Tango. The Single UK Competition and Markets Authority. Antitrust Chronicle, Competition Policy International, 5(1). Available online at:


Case - notes

  • Mantzari, D. (2011), The EC and CJEU Approach to Pharmaceutical Parallel Trade. Parallel Trade: The Challenges Ahead, Pharma Pricing and Reimbursement, IMS Health, 16(4), 109
  • Mantzari, D. (2009), Case T-196/04 Ryanair v Commission: a Critical Comment. Newsletter of Administrative Law 49(1). (in Greek)

Shorter Articles

  • Mantzari, D., What behavioural economics brings to financial regulation' ESRC Britain in 2015

Expert Reports and Evidence

Responses to Consultations

Conference Papers

  • D Mantzari, 'Economic Evidence in Utilities Regulation: Delineating the Boundaries of Administrative Discretion' Private Law Workshop, May 2016, Humboldt University, Berlin, Germany
  • D Mantzari, 'Retail Price Regulation in Competitive Energy Markets: Main Issues and Challenges' 9th IMEDIPA Conference on Competition Law and Policy, 15-16 April 2016, Athens, Greece
  • 'The Liberalisation of Retail Energy Markets: Lessons from the UK', Italian Association of Energy Law-AIDEN, 3 December 2015, Milan, Italy
  • 'The UK Energy Market Competition Investigation: What Future Role for Ofgem?', New Voices in Commercial Law Seminar Series, Queen Mary University of London, November 2015
  • 'Judicial Scrutiny of Regulatory Decisions: Institutional Dimensions' at SMU-ANU-Reading Research Forum, Singapore, September 2015
  • 'Judicial Review of Evidence-Based Regulation: Normative Implications', EPLO and IMEDIPA Conference on The Future of Regulation: Between Expertise and Democracy, 22 July 2015, Athens, Greece
  • 'Regulation through Litigation? The Case of Preliminary Rulings in the EU Energy Sector', 4 Biennial Conference of the European Union Studies Association (EUSA), 5-7 March 2015, Boston, USA
  • 'The Impact of Economic Evidence and Analysis on the Regulator's Discretionary Power: Focus on Utilities Regulation in the US and the UK', 5th Biennial ECPR Standing Group for Regulatory Governance Conference, 25-27 June 2014, Barcelona, Spain
  • 'Has the Increased Recourse to Expert Economic Evidence and Analysis Transformed Administrative Discretion? Evidence from the UK Utilities Regulation', 8th Competition Law and Economics European Network ('CLEEN'), 10-11 June 2014, Norwich, UK
  • 'The implications of economic evidence for the Court-Agency Relationship in the Realm of Utilities Regulation in the US and the UK', CCP Research Seminar, 30 January 2013, Norwich, UK
  • 'Towards a complementary relationship? The judge and the agency in the realm of economic regulation', 4th Biennial ECPR Standing Group for Regulatory Governance Conference, 27-29 June 2012, Exeter, UK

Book Reviews (selected)

  • 'The Historical Foundations of EU Competition Law' Kiran Klaus Patel and Heike Schweitzer (eds) European Law Review (forthcoming January 2014)
  • 'European Union Law of State Aid' Kelyn Bacon (ed) (2014) World Competition (forthcoming September 2014)
  • 'Joint Ventures and EU Competition Law' Luis Silva Morais World Competition (forthcoming September 2014)
  • 'EU Energy Law' Angus Johnston and Guy Block (2014) 37(1) World Competition 143
  • 'Telecommunications Law and Regulation' Ian Walden (2014) 37(1) World Competition 138'
  • European Telecommunications Law and Technological Convergence. Deregulation, Reregulation and Regulatory Convergence in Television and Telecommunications' Pablo Ibáñez Colomo (2013) 38 European Law Review 905
  • 'Vertical Agreements in EU Competition Law' Frank Wijcmans and Filip Tuytschaever, (2012) 35(3) World Competition 563
  • 'Directory of EU Case Law on Merger Control. The Merger Brick' Steven Nöe (2012) 35(3) World Competition 560
  • 'Merger Decisions and the Rules of Procedure of the European Community Courts' George Cumming (2012) 35(2) World Competition 383


Deni was invited to deliver a four-hour workshop at the University of Brescia (Italy) on judicial review of economic evidence in EU Courts in January 2013. The training program was an education project created by two Italian Universities (Universities of Brescia and Salento) and Paris 13, and financed by the European Commission.

LL.B. (2007), National University of Athens; LL.M European Union Law (2008), UCL; PhD (2014); Qualified Advocate (Athens)

Biographical Details:

Dr Despoina (Deni) Mantzari joined the School of Law at the University of Reading in September 2014 as a Lecturer in Law and teaches on the UG and PGT Programme. She holds a PhD from UCL (AHRC doctoral scholarship), an LL.M in European Union Law (distinction) from UCL and a law degree from the National University of Athens, Greece (merit). She previously worked as a Teaching Fellow at UCL Laws and as a postdoctoral research fellow at the ESRC Centre for Competition Policy, at the University of East Anglia. In 2010, she was a visiting researcher at the UC Berkleley Boalt Hall School of Law. She is an Associate Member of the Centre for Law, Economics and Society at UCL, of the Centre of Competition Policy at the University of East Anglia, of the Centre of Commercial Law and Financial Regulation at the University of Reading and a Fellow of the UK Higher Education Academy. She has worked as a trainee lawyer and qualified to practice law in Greece (Athens Bar Association). Deni has been invited in the judicial training programme of the European Commission and as a guest lecturer in many institutions. Her research expertise cuts across Competition Law and Regulation and Public Law. She is interested in the interaction of competition law and regulation in a number of regulated industries (electronic communications, energy, pharmaceuticals) as well as in judicial review of regulatory decisions. Her work is distinctive in its comparative (EU, UK, US) and interdisciplinary orientation and draws on a range of social-scientific disciplines (including political science and economics). Her research has been funded by both the AHRC, the ESRC and the BA/Leverhulme Trust (current project) and my peer-reviewed articles have been accepted for publication in top generalist (Oxford Journal of Legal Studies) and specialist (Journal of Competition Law and Economics) journals.

Deni is book review editor for the journal World Competition (Kluwer) and member of the journal's editorial board

Dr Mantzari welcomes approaches for supervision of PhD candidates in competition law, international and comparative competition law, regulated industries and administrative law.

Deni Mantzari

Contact Details

+44 (0) 118 378 8469
+44 (0) 118 378 4543

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