David is a Member of the Market Research Society and leads the Advanced Methods team and takes a central role in all projects involving advanced analysis.

He has a PhD in Stated Preference Techniques and is one of the foremost authorities in the design and development of practical statistical methods for market research. Impact's clients benefit from his extensive knowledge gained over the past 30 years while working across a wide range of fields, including pharmaceutical, category management, FMCG, telecommunications and energy.

Outside his research work, David enjoys films, theatre and cricket.