Rhys J. Williams

Rhys J. Williams

PhD student in Economics

Judge Business School, University of Cambridge

About

I am a PhD student in Economics at the University of Cambridge, supervised by Christos Genakos, Michael Pollitt, and Kamiar Mohaddes. I am funded by the Economic and Social Research Council. My research interests are in empirical IO and applied microeconomics.

My current research projects study the underlying causes of the gluten-free price premium; the effect of quality ratings on consumer search in the healthcare sector; the search behaviour of consumers in response to product availability information using a field experiment; and resale price maintenance utilising the case study of books. I have a working paper, available below, on the effects of low price guarantees, finding that contrary to most economic theory they result in lower prices.

During my PhD, I have supervised and TAed on a number of courses at both the undergraduate at postgraduate level, covering courses including Microeconomics, Industrial Organisation, and Firms and Markets. I regularly receive high feedback scores on my teaching and have received a departmental award for exceptional teaching quality. I have also supervised a number of undergraduate dissertations.

As a Senior Associate at the King’s Entrepreneurship Lab, I founded and run the E-Lab Essay Competition, a scheme to encourage students from across the UK to think about entrepreneurial topics and to break down myths and barriers about Oxbridge.

Prior to starting the PhD, I worked at an economics consultancy firm for 5 years, advising the EU, UK Government, and other organisations on matters of public policy. In particular, I was heavily involved in the EU DG Comp’s evaluation of the Vertical Block Exemptions Regulation, empirically analysing the effects of resale price maintenance in the book sector and, building a theoretical framework to consider the state of competition in the professional business services sector.

Interests
  • Applied Econometrics
  • Competition Economics
  • Industrial Organisation
  • Health Economics
Education
  • PhD in Economics, 2027 (Expected)

    Judge Business School, University of Cambridge

  • MRes in Economics, 2023

    Judge Business School, University of Cambridge

  • Postgraduate Certificate in Econometrics, 2020

    Faculty of Economics, Birkbeck College, University of Cambridge

  • MPhil in Economics, 2018

    Faculty of Economics, University of Cambridge

  • BA (Hons) in Economics, 2017

    Faculty of Economics, University of Cambridge

Publications

Working papers

Teaching

Undergraduate Dissertations

College Supervisor (3rd year undergruadate students, King’s College): Lent 2025

Industrial Organisation, Competition Policy, and Regulation

Faculty Supervisor (3rd year undergraduate students, Faculty of Economics): Lent 2024; Lent 2025

Firms and Markets

Faculty Supervisor (4th year undergraduate students, Judge Business School): Michaelmas 2023; Michaelmas 2024; Michaelmas 2025

Tech Policy

TA (MPhil students, Judge Business School): Michaelmas 2023; Michaelmas 2024; Michaelmas 2025

Microeconomics

College Supervisor (1st year undergraduate students, King’s College): 2024-25

Development Economics

College Supervisor (3rd year undergraduate students, King’s College): 2022-2023

Contact