The bestselling 2008 book Nudge, by Richard Thaler and Cass Sunstein, helped inspire experimentally tested, psychologically informed policy work around the world, often developed by “behavioural insight teams” in or adjacent to government.
Now two leading behavioural scientists, Nick Chater and George Loewenstein, have published an academic working paper suggesting that the movement has lost its way. Professors Chater and Loewenstein are academic advisers to the UK’s behavioural insight group, and blame themselves as much as anyone else for what they now see as mistakes. It’s worth paying attention to what they say.