Definition of "nudge"

All this experimentation is yielding insights into which nudges give the biggest shove. One question is whether nudges can be designed to harness existing social norms. In Copenhagen Pelle Guldborg Hansen, founder of the Danish Nudging Network, a non-profit organisation, tested two potential “social nudges” in partnership with the local government, both using symbols to try to influence choices.

2012 March 24, “Nudge nudge, think think”, in The Economist‎

Manipulating behavior is old hat in the private sector, where advertisers and companies have been nudging consumers for decades. Just think of strategically placed chocolate bars at the checkout counter. But in public policy, nudge proponents study human behavior to try to figure out why people sometimes make choices that they themselves would consider poor. Then they test small changes in how those choices are presented, to see whether people can be steered toward better decisions — like putting apples, not chocolate bars, at eye level in school cafeterias. […] It is tricky to run perfectly controlled experiments in real-life situations, but proving the worth of nudges is a central principle of the program, Mr. Halpern said.

2013 December 7, Kathrin Bennhold, “Britain’s Ministry of Nudges”, in New York Times‎

Libertarian paternalism is the view that, because the way options are presented to citizens affects what they choose, society should present options in a way that “nudges” our intuitive selves to make choices that are more consistent with what our more deliberative selves would have chosen if they were in control.

2012 January, Steven Sloman, “The Battle Between Intuition and Deliberation”, in American Scientist‎, volume 100, number 1, archived from the original on 8 January 2012, page 74

But a serious public health and economic crisis, and the responses to it from commonwealth and state governments, seems to have nudged some “protest” voters back into the major party fold.

2021 February 2, Katharine Murphy, The Guardian‎