Professor Clive Nancarrow is Professor of Marketing Research at Bristol Business School, University of the West of England. Research interests include marketing research applications and consumer behaviour. With an academic background in psychology, he pursued a career in market research on both the research agency and client side (L'Oreal) before joining Bristol Business School. He continues to be involved with the marketing research industry in a consultancy role. He has been retained by a number of major international companies and presents regularly at both academic and practitioner conferences.Ian Brace is Director of Research methods at TNS UK, where his role is to provide consultancy on research methodology and reporting for major projects. TNS is the largest market research company in the world. Ian has been a market researcher for over 30 years, during which time he worked for MAS Survey Research, NOP, Esso Petroleum and BJM Research.