Richard Heys is Deputy Chief Economist at the UK's Office for National Statistics (ONS) and for the last seven years has led production of productivity and investment statistics and research into economic statistics more generally. He is currently part of the UN task-team updating the System of National Accounts, with a particular focus on digitalisation. He has published on the treatment of gold and other valuables in the national accounts, public service productivity, welfare measurement, the economic impact of free digital services, crypto-assets, data and telecommunications. He chairs the OECD’s Working Party on Measuring the Digital Economy. He has experience of working in both the public and private sectors and degrees from Oxford and London.

Ms. Kerri-Ann Jones, a US national, took up her duties as Deputy Secretary-General of the OECD on July 1, 2022. Her scope of work covers, among others, the environment, development, science and innovation, data and statistics, and public governance.

Prior to joining the OECD, she held senior leadership positions promoting the role of science in public programs and policies. She most recently served as Vice President, Research and Science, at Pew Charitable Trusts. She served as the United States Assistant Secretary of State for Oceans and International Environmental and Scientific Affairs (OES) from 2009 to 2014. In this position, she led the office responsible for bilateral, regional, and multilateral engagement for oceans, environment, science, space and health, and also served as the Department's Special Representative on Avian and Pandemic Influenza. In 2014, she received the U.S. State Department's Foreign Affairs Award for Public Service.

She previously worked in the White House Office of Science and Technology Policy (OSTP), where she was appointed Associate Director for National Security and International Affairs and served on the National Security Council. During this term, she temporarily assumed the role of Acting Director of OSTP. She also served as Director of the Office of International Science and Engineering at the U.S. National Science Foundation (NSF) and worked for the U.S. Agency for International Development. (USAID) and for the National Institutes of Health (NIH).

Mariana Kotzeva is Director-General of Eurostat. She was appointed by the European Commission on 1 March 2018. She is not only the first Bulgarian Director-General in the European Commission but also the first woman at the helm of Eurostat.

Ms Kotzeva held the post of Acting Director-General of Eurostat from 1 January 2017. She joined Eurostat as a special adviser in 2012, becoming its Deputy Director-General in 2014.

Prior to joining the European Commission, Ms Kotzeva was the Head of Bulgaria’s National Statistical Institute. She also held a number of high-level consulting posts in the Bulgarian and foreign administrations, and led international projects for the United Nations and the World Bank.

Ms Kotzeva has a Master's degree in economics and a PhD in statistics and econometrics. She is an Associate Professor of Statistics at the University of National and World Economy in Sofia.