Bio: Nigel is the Director of the ESRC funded Centre for the Evaluation of Complexity Across the Nexus (CECAN), which develops and tests methods for the evaluation of complex public policies. A common feature of almost all the projects in which he has been involved is that they are multi-disciplinary and collaborative, bringing together social scientists, public sector and civil society organisations. He founded and is Director of the Centre for Research in Social Simulation at the University of Surrey. The Centre has contributed new knowledge in a wide range of areas at the interface between public policy and the social sciences, including inter alia, understanding processes of innovation in high-tech industrial sectors, the unanticipated consequences of fiscal policies to promote the installation of solar panels, the dynamics of extortion racket systems such as the Mafia, the behavioural aspects of household energy demand, and the unanticipated consequences of public policies on air quality. He was one of the first to use agent-based models in the social sciences, in the early 1990s, and has since published widely on the methodology underlying computer modelling, and on the application of simulation for applied and policy related problems such as understanding commercial innovation, managing environmental resources such as energy and water, and supporting public policy decision-making. He is a member of the ESRC's Strategic Advisory Network (SAN) and was a member of the ESRC's Council from 2017-2020. He has chaired and been a member of numerous ESRC committees. He has contributed to public affairs in a number of roles, including as a Specialist Advisor to the House of Commons Home Affairs Select Committee, as a member of the DEFRA Social Science Expert Group, and of the Horizon 2020 Future and Emerging Technologies Advisory Board. He was appointed Commander of the Order of the British Empire (CBE) in the Queen's Birthday Honours of 2016 for services to engineering and the social sciences. He was a member of the Sociology panel for both the 2001 and the 2008 Research Assessment Exercises. He is a Fellow of the Royal Academy of Engineering, a Chartered Engineer, and a Fellow of the Academy of the Social Sciences, the British Computer Society and the Royal Society of Arts.