New Delhi, Aug. 19 -- Cass R. Sunstein, the Robert Walmsley University Professor at Harvard and co-author of Nudge with Nobel prize winner Richard Thaler, was recently in India. The former head of the 'nudge' unit in the administration headed by US President Barack Obama took time off his schedule, which included a public lecture in New Delhi, to speak on a range of issues including how India was emerging as the best example of the use of behavioural economics to achieve public good. Edited excerpts of an interview:

What brings you to India right now?

I have been looking for an opportunity to visit India, one of the most important and vibrant areas of the world. The opportunities for improving health and safety are inspiring. And to be gi...