Contributor(s): Professor Liam Delaney, Dr Barbara Fasolo, Dr Adam Oliver, Dr Jet Sanders | Insights from psychology and behavioural economics are shaping policy-making all over the world, and the LSE is helping to make this happening. In the last decade methods and insights from behavioural science have been increasingly applied to inform policy decision-making all over the world. The UK has led this global trend since 2010, when the Behavioural Insights Team (BIT) - the ‘nudge unit’ - was set up within the Cabinet Office. Since then, behavioural units have been created in more than 200 public institutions – not only governments, but also international institutions (e.g. World Bank, WHO, OECD, EU), and national regulators (e.g. in the UK the Financial Conduct Authority - FCA; NEST; Public Health England - PHE) – as well as in many NGOs and non-profit companies. Since the very beginning, the LSE has been a key part of this fast-growing trend. On the teaching side, for example, the LSE