nudge theory

nudge theory (uncountable)

1. The idea of using small suggestions to influence behavior and decision making.
   • 2020 May 20, Stefanie Foster, “Comment: Safety first: now more than ever”, in Rail, page 3:

     Much of Japan's success depends on a culture of discipline and obedience, but they also make extensive use of 'nudge theory' to encourage the behaviour they want to see on their network. [...] We even have our own government office devoted to nudge theory - the Behavioural Insights Team, run in partnership with the Cabinet Office and which has worked on projects with Transport for London and elsewhere on the railway.