People Senior economists and sector specialists — combining government analytical rigour with commercial understanding.

ChamberlainWalker Economics was founded in 2016 by Paul Chamberlain and Chris Walker. Both Paul and Chris were senior economic advisers in the Government Economic Service, part of the UK Civil Service, where their careers spanned over a decade at the Ministry of Housing, Communities and Local Government (MHCLG), Department for Work and Pensions (DWP), HM Treasury (HMT) and HM Revenue and Customs (HMRC).

Paul Chamberlain

Paul Chamberlain

Founding Partner / Director

Paul is a respected economist with over 20 years’ experience managing large teams and delivering high-profile projects. He played a key role in all major housing, planning, and local growth national policy reforms spanning more than a decade, including as Deputy Director of Analysis at MHCLG. Paul also served as the director of a Swindon-based regeneration company (2016-2019), where he led a land-swap deal with Network Rail and played a central role in bringing two universities to the town.

Paul has a Master’s in Economics from the University of Kent and was a policy fellow at Cambridge University’s Centre for Science and Policy.

Chris Walker

Chris Walker

Founding Partner / Director

Chris is a senior economist with over 20 years’ experience in public policy across MHCLG, DWP, HM Treasury and HMRC, where he worked on a broad range of fiscal, housing and economic issues. His areas of specialism include housing and local development, clean growth and net zero, and taxation. Since moving into consultancy he has produced influential research for high-profile clients, attracting national media coverage and giving expert evidence before parliamentary select committees.

Chris has an MSc in Economics from the University of York and a BA in Economics from the University of Reading.

Ralph Mould

Ralph Mould

Partner / Director

Ralph is an economist and statistician with over a decade of experience working in central government on national housing, planning policy, transport, and local government. He has led economic analysis for major national policy initiatives, including the initial design and delivery of Help to Buy and the Affordable Homes Programme. Ralph was a Senior Economist at Homes England until the end of 2021.

Ralph has a BA in Economics and Statistics from the University of Exeter. He is certified as an APMG Better Business Cases Practitioner.

David Morris

David Morris

Senior Analyst

David is a former Senior Civil Servant with roles in the Department for Transport, the Prime Minister’s Delivery Unit, and MHCLG. At MHCLG, he was Deputy Director for Local Economic Growth and in this role, David established City Deals, the Local Growth Fund, and the Growing Places Fund. Until recently, he was a Policy Advisor to the West of England Mayoral Combined Authority, alongside his consultancy work with ChamberlainWalker.

David has a BA in History and Politics from the University of the West of England.

Jay Atwal

Jay Atwal

Senior Associate Economist

Jay is a Senior Associate Economist supporting the firm’s work across economic strategy, regeneration and public sector investment appraisal. He brings experience across both the public and private sectors, including roles at the Office for National Statistics and consultancy positions with WSP and Hatch, and specialises in Green Book appraisal, business case development, impact assessment and financial modelling.

Jay has a BSc in Economics from the University of Kent and is certified as an APMG Better Business Cases Practitioner.

Claire Ackroyd

Claire Ackroyd

Senior Analyst

Claire is an economist and strategist with over 20 years’ experience in housing and planning policy, labour markets and local growth across national government, local institutions and consultancy. She has particular expertise in developing investment-ready strategies, synthesising evidence bases and drafting clear, accessible reports for decision-makers. Alongside her work with CWE, Claire is also a published author.

Claire has an MSc in Local Economic Development from the London School of Economics and an MA in Economics from Trinity College, Cambridge.

Dr. Geraint Coles

Dr. Geraint Coles

Senior Associate

Geraint has worked in both academia and local government, where he directed a range of heritage-led regeneration projects. His work focuses on the role of heritage in regeneration, community wellbeing, and place shaping. Geraint collaborates with ChamberlainWalker Economics alongside running his own practice – Heritage Place Renewal.

Geraint was the founding director of the Cultural Heritage Institute, part of the Royal Agricultural University, and has extensive experience working at the intersection of cultural heritage, planning, and sustainable development.

Mario Wolf

Mario Wolf

Senior Associate

Mario is a town planner and policy expert with over 35 years’ experience in planning and development across the UK and internationally. He has held senior roles in central and local government and was a founding Director of the Government-backed Right to Build Task Force, also contributing to the 2021 Bacon Review on housing diversification and land supply.

Mario holds a First Class MSc and Postgraduate Diploma in Urban Planning as well as a BSocSci and BA (Hons) in Urban Geography. He is a Chartered Member of the Royal Town Planning Institute.

Dr. Michalis P. Stamatogiannis

Dr. Michalis P. Stamatogiannis

Associate Economist

Michalis is an academic economist and econometrician and has held positions at the University of Bath, University of Groningen, and currently University of Liverpool, where he is a Senior Lecturer in Finance.

Deji Ajijedidun

Deji Ajijedidun

Associate Economist

Deji is a highly qualified consultant with nearly 10 years of experience in business case development, economic and financial appraisal, and impact assessment. He holds a BA in Economics from the University of Cambridge and is certified as an APMG Better Business Cases Practitioner.

Peter Sheaf

Peter Sheaf

Analyst

Peter is an experienced statistician and economist with more than 15 years of expertise in data analysis, economic research, and policy development. He holds a Master’s degree in Development Economics from the University of East Anglia and has worked across multiple government departments, covering tax, housing and planning, and environmental affairs.

Adam Rennett

Adam Rennett

Associate Economist

Adam is a graduate economist with a BSc in Economics from the University of Sheffield. Through the university’s Undergraduate Research Experience (SURE) programme, he undertook econometric research into regional inequalities in innovation.

He has also developed and presented proposals on national tax and investment policy to government ministers. At ChamberlainWalker, Adam supports research into regional economic growth, business demographics and investment.