Portrait of Summayah Leghari

Summayah Leghari : Consultant

Summayah is a member of Oxera’s Finance & Valuation, Regulatory Finance and State Aid teams. She applies economics and finance principles in the context of regulatory investigations and state aid assessments.

Prior to joining Oxera Summayah worked in both the private and public sectors, at Europe Economics and the Financial Conduct Authority (Payment Systems Regulator). Here her work focused on impact assessments, cost of capital estimation, policy evaluation, and assessment of various competition policy issues for a number of UK and EU authorities. She has experience of working across multiple sectors, with a focus on financial services and utilities. Summayah is a CFA Level II candidate.

Summayah speaks English, Urdu, and Siraiki.

Tel: +44 (0) 20 7776 6645

Summayah's specialisms include:

professional experience

  • Advice to Ofwat (the economic regulator of the water industry in England and Wales) on the initial cost of capital for Price Review 2019 (PR19) (2017)

  • Estimation of the economic impact of the Contract for Difference (spread betting) sector in the UK using input–output modelling (2017)

  • Assessment of consumer rights with respect to online shopping parcel delivery for Citizens Advice, and development of policy options for better protection of consumer rights (2017)

  • Advice to the European Parliament on the Horizon 2020 Framework Programme on Societal Challenges, Industrial Leadership and Excellent Science, in view of the future 9th Framework Programme (2017)

  • Policy support to the Office of Rail and Road (ORR) for the ORR Price Review 2018 (PR18) consultation (2016)

  • Assessment of a suitable rate of return for Data Communications Company (2016)


  • MPhil Finance and Economics, University of Cambridge

  • BSc (Hons) Economics, Lahore University of Management Sciences

Latest Insights:  Summayah Leghari

In May 2021, Ofwat, the economic regulator of the water industry in England and Wales, set out its vision for the next price review (PR24). Key themes are long-term planning,…
Following Ofwat’s 2019 price review of water companies (PR19), four companies have appealed to the CMA for a redetermination. Each company has submitted its Statement of Case (SoC), which outlines…
Statements by politicians about nationalising or intervening in the functioning of regulated industries have attracted substantial media attention in recent times, leading to an increase in political and regulatory risk…