Tim Ambler is a senior fellow of marketing at the London Business School. His expertise lies in measuring the impact of advertising and marketing, brands and brand equity, neuro marketing, and measuring government regulation and deregulation. Ambler is also a member of the Economics Committee and the Advertising Association as well as a private consultant. Prior to this Ambler was joint managing director of International Distillers & Vintners Ltd ( formerly, Grand Metropolitan, now part of Diageo) with responsible for strategy, acquisitions and marketing.  During his time with Grand Metropolitan Ambler told an alcohol industry conference that:
- “It is generally agreed that the tobacco industry reacted to not dissimilar threats in a passive, inadequate manner and most of all too late...dead customers ring no tills...profit and social responsibility are entirely compatible” 
Road Map to reform: Deregulation (Ambler & Boyfield 2005) is one of Ambler's reports published by the Adam Smith Institute it argues that EU rules should be applied equally across all member countries, utilities should no longer have to pick up the cost to consumers who cannot pay bills and small firms should have to deal with only one official on all aspects of business and workplace regulation. 
Ambler featured on Marketing's list of the 100 most powerful figures in the industry. The list recognises Ambler's "stint of national service in Malaya 'during the terrorist period' - doubtless an excellent preparation for a career in marketing (with International Distillers & Vintners) then academia". .
Ambler reviewed the findings of the Food Standards Agency's Hastings Study into the link between childhood obesity and advertising he concludes that children are only around 2% influenced by the adverts they are exposed to. Therefore advertising is not a factor in childhood obesity. This of course raise the question why is Ambler so intent on defending an industry that in his view does not work? He also examines the evidence provided in studies commissioned by the UK Advertising Association and concludes that the FSA study is unreliable in some respects. Ambler recommends that the FSA work with the industry to review codes of practice and that the Government should consider pro-health promotions to reduce childhood obesity. 
- EUtopia: what EU would be best and how do we achieve it?, Tim Ambler & Keith Boyfield, Adam Smith Institute, March 2006 (ISBN 1-902737-50-4).
- Road Map To Reform: Deregulation, Tim Ambler & Keith Boyfield, Adam Smith Institute, February 2005, (ISBN 1-902737-47-3).
- Do The UK Regulatory Agencies Provide Taxpayer Value? Tim Ambler & Keith Boyfield, Centre for Marketing Working Paper No 04-902.1, London Business School, March 2004 (available on the web at www.london.edu).
- 'Does the UK promotion of food and drink to children contribute to their obesity?' Tim Ambler, International Journal of Advertising, Vol. 25, No. 2, 2006, pp.137-156
- London Business School Website Tim Ambler Faculty Profile Last accessed 4th November 2007
- Anderson, P. (2005) The Beverage Alcohol Industry and Alcohol Policy. Proceedings of The international conference, Thinking Drinking: Achieving cultural change by 2020, Hosted by The Australian Drug Foundation, Melbourne from 21 – 23 February 2005, Last Accessed 4th November 2007
- Critical Eye Website Road Map to Reform: Deregulation Last accessed 4th November 2007
- Brand Republic Website Marketing's Power 100 Aaccessed 29th May 2008
- World Advertising Research Centre, Tim Ambler Does the UK promotion of food and drink to children contribute to their obesity? accessed 29th May 2008