In Seoul, Korea, a clever visual nudge was observed in an elevator. The floor was divided into nine squares, each marked with a pair of painted footprints. This subtle design implied that only nine people should ride the elevator at once.
Not long ago, I believed that floor signage could not influence our behavior, assuming that we naturally internalize rules over time. Back then, a yellow-painted footstep in Singapore or an orange-colored line in Shenzhen seemed unlikely to alter the rules we had already learned. However, my perspective has shifted—I now recognize that floor signage can indeed guide and reshape our behavior.
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Reference
Benartzi, S., Beshears, J., Milkman, K. L., Sunstein, C. R., Thaler, R. H., Shankar, M., … Galing, S. (2017). Should Governments Invest More in Nudging? Psychological Science, 28(8), 1–15.
Governments are increasingly adopting behavioral science techniques for changing individual behavior in pursuit of policy objectives. The types of “nudge” interventions that governments are now adopting alter people’s decisions without coercion or significant changes to economic incentives. We calculated ratios of impact to cost for nudge interventions and for traditional policy tools, such as tax incentives and other financial inducements, and we found that nudge interventions often compare favorably with traditional interventions. We conclude that nudging is a valuable approach that should be used more often in conjunction with traditional policies, but more calculations are needed to determine the relative effectiveness of nudging.
