From the list below, what is the best example of a behavioural nudge?

Question

BlackTom AI · Accepted Answer

To evaluate the best example of a behavioural nudge, we need to consider how the option influences choices through the arrangement of the environment rather than through explicit coercion or financial incentives.
Option a: A financial penalty (fine) for leaving rubbish in a public space. This is a deterrent punishment, not a gentle steering of choices. It imposes a cost to avoid a behavior rather than altering the choice context itself.
Option b: Placing healthy food at eye level on supermarket shelves. This is a classic behavioral nudge. It changes the choice architecture by making healthier options more salient and easier to pick without restricting options or mandating behavior, leveraging default visibility to influence decisions.
Option c: A tax added to the price of petrol. This is a fiscal policy that raises costs to change behavior, i.e., a disincentive via price signals. While effective, it operates through price manipulation rather than subtle arrangement of choices.
Option d: A subsidy (money from the government), paid to consumers of education. Subsidies are financial incentives that reduce cost to the consumer and can motivate behavior, but they function as monetary incentives rather than environmental or contextual nudges in the choice setup.
In summary, nudges work by altering the environment to guide people toward a desired option without restricting freedom or significantly altering costs. Among the options, option b best fits this definition by reshaping the display to encourage healthier choices while preserving all options. The other choices rely on penalties, taxes, or subsidies, which are not nudges in the strict behavioral-psychology sense.

From the list below, what is the best example of a behavioural nudge?

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Which of the following is not an example of a behavioural nudge?