David Halpern is President and Founding Director of The Behavioural Insights Team and a leading pioneer in applying behavioural science to improve public policy and everyday decision-making worldwide.

In this interview he reveals the fascinating ways behavioural science influences government policy and everyday decisions. From pensions to education and even tax collection, we explore how "nudges" are changing the way we interact with public services. We also discuss the ethics of government intervention, the efficiency of markets, and the future of policymaking in a data-driven world.