Author: Richard Thaler, Cass Sunstein, Penguin Books

What: The Nudge theory, which was released in 2008 and adopted by many regulators across the planet, has been updated by its authors and applied to contemporary issues, among which the climate change.

Why it is important: Retailers already used nudging techniques in the past without labelling them as such. Having a clear and complete understanding of what it entails and how it works can help them to fine-tune their approach and potentially apply these techniques to encourage customers to buy in a more sustainable manner.

Nudge, the Final Edition