Our people

I am an Associate Professor in Economics and Wigmore Clarendon Fellow in Economics at Worcester College. My research is on theoretical models of pricing in imperfect competition, with a recent focus on price discrimination and its welfare effects. I have also worked on the regulation of privately-owned utilities. Regulatory Reform: Economic Analysis and British Experience (MIT Press), written with co-authors Mark Armstrong and John Vickers, was published in 1994. I have papers in the American Economic Review, The Economic Journal and the Rand Journal of Economics, and am a former editor of Oxford Economic Papers.

For undergraduates I have taught Introductory Economics, Microeconomics, Macroeconomics, the Economics of Industry and International Economics. I have also taught environmental economics, and have taught Industrial Organization to graduate students. I was Head of Department between October 2019 and September 2020.

View all publications on the Department of Economics website

Sadie Creese is Professor of Cyber Security in the Department of Computer Science at the University of Oxford. She teaches operational aspects of cybersecurity including threat detection, risk assessment and security architectures. In Computer Science she teaches the second year Computer Security course, and the Advanced Security course taken both by BSc undergraduates and MSc graduate students. Sadie is currently Chair of Examiners for the MSc in Computer Science. Elsewhere in Oxford, Sadie is a member of the faculty of the Blavatnik School Executive Public Leaders Programme, where she lectures on cybersecurity topics relevant to senior leaders in public policy from around the world. She also is a regular contributor to the leadership programmes and MBA teaching of the Saïd Business School.

Sadie is a Fellow of Worcester College, Oxford where she sits on the Governing Body, and a regular public speaker on cybersecurity and organisational challenges today and in the future. Prior to returning to academia she has worked as a cybersecurity expert in business and as a research scientist specializing in security for the UK’s Ministry of Defence. She has a DPhil in Computer Science from the University of Oxford, as well as an MSc in Computation and a BSc (Hons) in Mathematics and Philosophy.

Her current research portfolio includes: threat modelling and detection with particular interest in the insider threat and threat from AI, visual analytics for cybersecurity, risk propagation logics and communication, resilience strategies for business, privacy requirements, vulnerability of distributed ledgers and block-chains,  understanding cyber-harm and how it emerges for single organisations, nations and the potential for systemic cyber-risk, and the Cyber Security Capacity Maturity Model for Nations. She is Principal Investigator on the AXIS sponsored project “Analysing Cyber-Value-at-Risk, Residual Risk and models for Systemic Cyber-Risk” focused on developing a method for predicting potential harms arising from cyber-attacks. She leads the Oxford team’s collaboration with the World Economic Forum’s Shaping the Future of Cybersecurity and Digital Trust Platform, research sponsored by AXIS, which is considering the cybercrime challenges that world leaders will need to address in the near and far technology future – part of the Platform’s Futures Series – “Futures Series: Cybercrime 2025”. Sadie is also co-Chair of the Lloyds Register Foundation sponsored Foresight review of cyber security for the Industrial Internet of Things (IIoT), which is considering operational cybersecurity technology gaps in future IIoT environments.

Sadie is the founding Director of the Global Cyber Security Capacity Centre (GCSCC) at the Oxford Martin School, where she continues to serve as a Director conducting research into what constitutes national cybersecurity capacity, working with countries and international organisations around the world. She was the founding Director of Oxford’s Cybersecurity network launched in 2008 and now called CyberSecurity@Oxford. She was a member of the World Economic Forum’s Cyber Security Centre’s Strategic Advisory Board, and was a Technical Advisor to the Government of Japan (GOJ) and the World Economic Forum joint project on International Data Flow Governance ‘Advancing the Osaka Track’.

Richard is an Associate Professor in Particle Accelerator Physics at the John Adams Institute. His research specialism is the development of novel particle-acceleration techniques, with a particular focus on plasma-wakefield accelerators.

Following undergraduate and graduate degrees at the University of Durham and University College London, respectively, he moved to Fermilab (USA) as a Research Associate and then DESY (Germany) as a Research Fellow.

At DESY he was Group Leader for Beam-Driven Plasma Accelerators as well as Project Coordinator of the FLASHForward experiment for many years. His current research focus is on answering the ‘luminosity question’ of how best to apply plasma accelerators to particle physics and photon science as well as applications in medicine and industry.

Richard welcomes applications from prospective doctoral students with interests in both novel and conventional accelerator research.

Richard teaches Mathematical Methods for Physicists (CP3 and CP4) in the first year and Electromagnetism and Optics (A2) in the second year.

His research specialism is in Particle Accelerator Physics, specifically in the development of Novel Accelerator Technology for the miniaturisation and increased proliferation of particle accelerators. In recent years he has taken a leading role in the research of Plasma-Wakefield Accelerators, with a particular interest in answering the ‘luminosity question’ of plasma accelerators through high-repetition-rate and high-average-power operation.

View all publications on the Department of Physics website

Tsilly Dagan is Professor of Taxation Law at Oxford University and a Fellow of Worcester College. Professor Dagan’s main fields of research and teaching are tax law and policy (both domestic and international) and the interaction of the state and the market. Her book International Tax Policy: Between Competition and Cooperation (Cambridge University Press) is the winner of the 2017 Frans Vanistendael Award for International Tax Law. Professor Dagan studied law at Tel Aviv University (LL.B., S.J.D.) and New York University (LL.M in Taxation) and joined Bar-Ilan University where she served as Associate Dean for Research as well as Editor-in-Chief of the law review and was appointed the Raoul Wallenberg Professor of Law. Professor Dagan has taught and researched as a scholar in residence at the University of Michigan, University of Western Ontario, and Columbia University, and was a member of the Group on Global Justice at the Institute of Advanced Studies, Jerusalem. She is the co-founder of the Oxford-Virginia Legal Dialogs and the International Tax Governance and Justice Workshop.

I studied Ancient History and Classics at Durham University, followed by a Master’s and DPhil in Classical Archaeology at the University of Oxford. From 2013-18, I was part of the Empires of Faith project, based jointly at the University of Oxford and the British Museum, working on the 2017-18 exhibition, ‘Imagining the Divine: Art and the Rise of World Religions’ hosted by the Ashmolean Museum, Oxford. Since 2018 I have been an Assistant Director of the joint Oxford-Messina archaeological excavations at Halaesa, Sicily under the direction of Prof. Jonathan Prag (Oxford) and Prof. Lorenzo Campagna (Messina).

I am a Postdoctoral Researcher at the Open University, where I am working as part of the The Baron Thyssen Centre for the Study of Ancient Material Religion, looking at constructions of gods in the ancient world.

I currently edit and contribute to a blog (Curation Space), discussing permanent and temporary exhibitions, galleries, gardens and everything in between.

My work focuses on the study of the ancient world, in particular religion, through the visual and material record. I am interested in how people communicate through ‘stuff’ and in turn, how this effects how people live, think and interact with each other. This raises a lot of questions about how we analyse material culture and how we, in turn, communicate what we find.

Since my undergraduate, I have had a strong interest in the Near East (Turkey, Syria, Lebanon, Jordan, Israel/Palestine) from the late Hellenistic period into Late Antiquity, and in ancient religion. My doctoral thesis, ‘Making Gods, Moving Gods Material and Textual Propositions of the Divine from first century BC Commagene to the Roman Empire in the third century AD,’ was a study of the ways in which the divine were objectified in the ancient Mediterranean, and the importance of objectification for our understanding of ancient religion. I am currently working on an extension of this project that looks at iterations of Jupiter / Zeus in the Late Hellenistic and Roman Imperial periods.

I have also been working on Sicily in an archaeological capacity for several years, having carried out excavations at the Hellenistic and Roman site of Halaesa Arconidea.

I studied Comparative Literature in Vienna and completed a teacher training programme in Russian and German. My studies have led me to the Aristotle University in Greece and to the two Russian Novgorods. During my studies I worked as a secondary school teacher and librarian.

As a Fulbright Teaching Assistant in Atlanta, I began teaching at university level. I first came to the UK to join the University of Kent, followed by three years at King’s College London, during which I completed an internship at the Austrian Embassy to Moldova and obtained a postgraduate diploma for German Language Teaching in International Higher Education.

I teach German to undergraduate students and bring with me a focus on the Austrian approaches to life and culture.

The development of highly efficient single junction and multi-junction photovoltaics, coupled with the rise of bright and efficient LEDs with high fidelity and a wide color gamut, has placed halide perovskite materials at the centrestage of next generation technologies aimed towards combating climate change and promoting sustainability. During my PhD, I investigated the intriguing optoelectronic properties of solution-processed mixed lead-tin halide perovskites using a combination of fundamental spectroscopic investigation and applied device integration in solar cells and transistors. In my current postdoctoral role in the group of Professor Henry Snaith at Oxford, my research primarily focuses on the fabrication and characterization of novel ‘superlattice’ architectures (using both solution processing and vacuum thermal evaporation) for efficient and stable perovskite LEDs, as inspired from the well established III-V quantum well LED technology. Moreover, I will also continue to work with mixed lead-tin perovskites by exploring newer avenues for these interesting materials in solar cells and LEDs.

Since October 2023, I have joined Worcester College, University of Oxford as a Junior Research Fellow in Sciences.

Lead Tutor (Oct 2023-Present)
3rd Year course ‘Electronic Devices (B12)’, Department of Engineering Science, University of Oxford

Demonstrator (Oct 2023-Present)
1st year Electronics labs, Department of Physics, University of Oxford

View all publications on the Department of Physics website